Betting Glossary

Sports betting has its own language, and knowing it makes every wager more informed. Whether you’re scanning a bet slip, reading an odds board, or hearing a term on a broadcast for the first time, this sports betting glossary gives you the plain-language definition you need. Every major term used across Caesars Sportsbook is defined in this glossary with clear explanations and examples.

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Legal sports wagering is available to adults 21 years of age or older in more than 30 states. Understanding the vocabulary is the first step to placing bets with confidence. Bookmark this page and return whenever a term needs a quick definition.

Action

A wager is said to be "in action" once it’s been confirmed and is live in the sportsbook. You can also use it informally to describe general betting activity: "there’s a lot of action on the favorite this week," meaning significant betting volume came in on that side. If a sportsbook says a game "has action," wagers are currently being accepted on that market.

Alternate Lines

Alternate lines are non-standard point spreads or totals offered at adjusted odds alongside the standard line. Bettors can take a smaller spread for the favorite at worse payout odds, or accept a larger spread at better payout odds. For example, if the standard line is favorites -7, an alternate line might offer favorite -3 at -200 or favorite -13.5 at +175. Alternate lines give bettors flexibility to customize their risk and reward on any game without changing the game itself.

American Odds

American odds are the standard odds format used by Caesars Sportsbook. They appear as either a positive or a negative number. A negative number shows how much you must wager to win $100 in profit: -160 means a $160 bet returns $100 in profit, for a total payout of $260. A positive number shows how much a $100 bet wins in profit: +140 means a $100 wager returns $140 in profit, for a total payout of $240. Favorites carry negative odds; underdogs carry positive odds.

Arbitrage

Arbitrage, sometimes called "arbing," is the practice of placing wagers on all possible outcomes of a single event across different sportsbooks to guarantee a profit regardless of the result. Arbitrage opportunities arise when different sportsbooks post different odds on the same event that, taken together, imply a combined probability below 100%. In practice, true arbitrage opportunities are rare, short-lived, and often identified and limited quickly by sportsbooks. Arbitrage isn’t a reliable or scalable long-term betting strategy.

Asian Handicap

The Asian handicap is a spread betting format used primarily in soccer that eliminates the possibility of a draw by applying fractional handicaps to create a two-outcome market. A -0.5 Asian handicap means the favored team must win outright for bets on that side to win. A -1.5 handicap means the favorite must win by 2 or more goals. Quarter-ball handicaps, like -0.75, split a stake across 2 adjacent lines, providing a partial refund if the result lands between them. Asian handicap betting is available on major soccer markets at Caesars Sportsbook.

Bankroll

A bankroll is the total amount of money a bettor sets aside specifically for sports wagering. Managing a dedicated bankroll, separate from everyday expenses, is the foundation of disciplined betting. Responsible bettors track wins, losses, and wager sizes against their bankroll to understand their true performance over time. Caesars Sportsbook offers deposit limits, wager limits, and session limits within account settings to help bettors manage their bankroll within boundaries you define.

Bet Slip

The bet slip is the interface in the Caesars Sportsbook app where bettors build, review, and confirm wagers before submitting them. When you tap any set of odds, that selection is added to your bet slip. You then enter your stake, review the potential payout in real time, and confirm the bet. The bet slip also lets you build parlays, Same Game Parlays, and teasers by adding multiple selections before placing a single combined wager.

Buy Points

Buying points means paying additional juice, or accepting worse odds, to move a point spread or total in your favor by half a point or a full point. For example, if the standard line is favorite -3 at -110, buying a half point to -2.5 might cost -130. Buying off of 3 in football is the most common application, since many NFL games are decided by a field goal. The cost of buying points must be weighed against the value of the improved position.

Cash Out

Cash out is a feature that allows bettors to settle an open wager before a game or event concludes, at a value the sportsbook calculates based on current in-game odds. If your bet is winning mid-game, the cash-out offer is usually below your full potential payout but above your original stake. If your bet is losing, the offer may be below your original stake. Cash out gives bettors control over their exposure before the final whistle and is available on eligible bets at Caesars Sportsbook.

Chalk

Chalk is slang in sports betting for the favorite in any game or market. "Betting the chalk" means wagering on the favored team, player, or outcome. Heavy chalk refers to a strong favorite with a large negative moneyline, like -300 or more. Recreational bettors tend to favor chalk by default, which is why sportsbooks account for public bias toward favorites when setting lines.

Circled Game

A circled game is one where the sportsbook applies reduced betting limits, usually due to a significant injury, an uncertain lineup, or unusual market activity. Circled games are often flagged visually on the odds board. Parlay rules may be stricter for circled games, and some sportsbooks limit or exclude circled games from certain parlay combinations. If maximum bet limits on a game appear lower than usual, the game is likely circled.

Closing Line Value (CLV)

Closing line value refers to how a bettor's odds compare to the final odds posted at game time. If a bettor took a line of +3 earlier in the week and the line closed at +1.5, the bettor beat the closing line by 1.5 points, representing positive CLV. Professional bettors track CLV as a long-run performance measure: consistently beating the closing line is one of the most reliable indicators of a genuine edge. CLV doesn’t guarantee individual wins but is a meaningful signal of whether a bettor is identifying value or just getting lucky in the short term.

Consensus / Public Betting Percentage

The consensus, or public betting percentage, is the share of all wagers placed on each side of a game at a given moment. For example: if 72% of bets on a game are for the favorite, the favorites are said to have 72% of public money. Bettors who follow sharp money watch for games where the line moves opposite to the public betting split, which signals that large professional wagers on the other side are moving the number against the crowd.

Cover

To cover the spread means a team has met the requirement for bettors on that side to win their spread wagers. A favored team covers when it wins by more than the posted spread. An underdog covers when it wins outright or loses by fewer points than the spread. For example, if the favorite is -6.5 and win by 10, they cover. If the underdog is +6.5 and loses by 4, the underdog covers. Covering is specific to spread bets; a moneyline bet requires only that the selected team wins the game outright.

Dime

Sports betting slang for a $1,000 wager on a team.

Dog

Dog is short for underdog: the team, player, or outcome considered less likely to win according to the posted odds. On the moneyline, the underdog carries a positive number like +175 for example. On the spread, the underdog receives points. Betting the dog means wagering on the less-favored side, which offers higher potential returns. Many bettors specifically look for value in underdog markets where public bias toward favorites has inflated the price on the more popular side.

Each-Way

An each-way bet is a 2-part wager most common in horse racing and golf. The total stake is split equally between a win portion and a place portion. The win portion pays out if the selection wins outright. The place portion pays out at reduced odds if the selection finishes within a specified number of top positions, usually the top 3, 4, or 5, depending on the event and sportsbook terms. Each-way betting is popular for longer-shot selections where a top-place finish is more likely than an outright win.

Even Money

Even money refers to odds of +100 or -100, where a bettor wins exactly the amount wagered in profit. A $100 bet at even money returns $100 in profit plus the original $100 stake, for a total payout of $200. Even money odds represent a theoretically 50/50 proposition before accounting for juice. Pick'em games with no spread are often offered at odds near even money.

Exacta

An exacta is a horse racing wager where the bettor must correctly predict the 1st and 2nd place finishers in exact finishing order. It’s more difficult than a standard win bet and pays proportionally higher odds. An exacta box lets bettors to cover multiple combinations of 2 horses finishing 1st and 2nd in any order, at the cost of a larger total stake. Exactas are among the most popular exotic wager types in thoroughbred and harness racing.

Fade

To fade means to bet against a team, a bettor, or a prevailing trend. "Fading the public" means wagering on the side opposite to where the majority of recreational bets are placed, based on the idea that public money tends to inflate the price on favorites and popular teams, creating value on the other side. Fading a tout means betting against their published picks. The strategy doesn’t guarantee success but is a recognized approach among bettors who track public betting percentages and line movement together.

First-Half and Second-Half Bets

First-half and second-half bets are wagers on the outcome of only one half of a game, rather than the full-game result. Sportsbooks post separate spreads, moneylines, and totals for each half. First-half lines are typically available when the game opens, and second-half lines are posted at halftime. These markets are popular for bettors who have a view on one team's early performance tendencies or who want to hedge an existing full-game position at halftime.

Flat Betting

Flat betting is a bankroll management approach where a bettor wagers the same fixed dollar amount or the same fixed percentage of their bankroll on every single bet, regardless of confidence level. For example, a flat bettor might wager 2% of their bankroll on every game. Flat betting prevents the compounding losses caused by increasing stakes after losses, known as chasing, or by overweighting high-confidence picks that may not perform better than lower-confidence selections. It’s recommended for bettors at every experience level as the baseline for disciplined money management.

Futures

A futures bet is a wager on a season-long or tournament outcome placed before the result is known. Futures odds update throughout the season as teams perform and the field of contenders narrows. Early-season futures odds on eventual champions often offer better value than odds available later, when public money has compressed the price on the likely favorites. Caesars Sportsbook offers futures markets year-round on all major professional and college sports.

Grand Salami

The Grand Salami is a wager on the total combined runs, goals, or points scored across all games on a given day's slate, primarily in baseball and hockey. Instead of betting the total for a single game, the Grand Salami pools every game's scoring into one aggregate total and bettors wager on whether the combined total goes over or under the posted number. It is a popular bet during MLB and NHL regular seasons when full-day slates can include a dozen or more games. Caesars Sportsbook offers the Grand Salami on eligible days during baseball and hockey seasons.

Handle

Handle is the total dollar amount wagered on a game, event, or market. It’s distinct from revenue, which is the amount the sportsbook retains after paying out winning bets. A game with heavy action generates a large handle. State gaming commissions publish monthly handle reports that track the total volume of each state's legal sports betting market.

Handicapper

A handicapper is a person who analyzes sports events and produces predictions or betting recommendations. Professional handicappers may sell their picks through paid subscription services called tout services. The term originated in horse racing, where an official handicapper assigned weight allowances to horses to level competition. In modern sports betting, a handicapper is anyone who studies games with the goal of finding an edge against the posted line.

Hedging

Hedging is the practice of placing a second wager on an opposing outcome to reduce exposure or lock in a guaranteed return on a position already held. It’s most common in futures betting: if a bettor placed a division champion futures wager at long odds early in the season and their team reaches the game, the bettor can bet the opponent at game-time odds to guarantee a profit regardless of the outcome. Hedging trades maximum upside for reduced risk, and the best decision depends on the bettor's risk tolerance and the size of the potential win on the original position.

Hold

Hold is the percentage of all wagered money that a sportsbook retains as revenue after paying out winning bets. It’s the sportsbook's effective margin. A standard -110/-110 market carries roughly a 4.5% hold. Higher-hold market types include same game parlays, teasers, and certain exotic prop markets. Understanding hold helps bettors compare the true cost of different bet types over the long run.

Hook

The hook refers to the half-point, or 0.5, added to a point spread to prevent a push. A spread of -3.5 includes a hook on the 3: if the favorite wins by exactly 3, there’s no push and the bet loses. "Losing by the hook" means a wager lost because the final margin landed on the whole number instead of clearing the half-point. The hook is most important in football on key numbers like 3 and 7, which are the most common margins of victory in NFL games.

Implied Probability

Implied probability is the win percentage that a set of odds implies, converting American odds into a percentage that reflects the sportsbook's estimated likelihood of an outcome. For a bet priced at -110, the implied probability is approximately 52.4%, meaning a bettor must win more than 52.4% of -110 bets just to break even after juice. For a bet at +150, the implied probability is 40%. Comparing implied probability to your own estimated probability of an outcome is the core process for identifying whether a bet offers value.

In-Game Betting

In-game betting is another term for live betting: wagering placed while a game is in progress, with odds adjusting in real time. See Live Betting in the L section of this glossary for a full definition.

Juice

Juice, also called vig or vigorish, is the built-in margin a sportsbook charges on every bet, shown within the odds. Standard juice on spread and totals bets is -110, meaning a bettor must wager $110 to win $100 in profit. The juice ensures the sportsbook earns revenue regardless of which side wins: on a balanced -110/-110 market, the book collects $110 from each side and pays out $210 to the winner, keeping $10 per pair as margin. At standard -110 juice, a bettor must win 52.38% of their wagers to break even. Reduced-juice lines at -105 lower that break-even threshold and represent meaningfully better long-term value for active bettors.

Line Movement

Line movement is any change in the posted point spread or odds from the time a line opens to the time the game begins. Lines move in response to significant betting volume on one side, injury news, weather updates, or coordinated sharp action. For example, if a favorite opens as -3 favorites and closes at -5.5, the line moved 2.5 points toward the favorite. Bettors who track line movement can identify when and where professional money entered the market. Getting a number better than where the line ultimately closes is a primary goal for bettors who shop lines across multiple sportsbooks.

Live Betting

Live betting, also called in-game betting, allows bettors to place wagers while a game is in progress, with odds updating in real time based on the score, game clock, possession, and field position. Caesars Sportsbook offers live betting markets on every NFL regular-season and postseason game, as well as NBA, MLB, NHL, and major college sports. Live markets include real-time point spreads, adjusted totals, team-specific wagers, and quarter or period wagering. The speed of live odds movement rewards bettors who are actively following the game.

Lock

Sports betting slang for a bet a bettor considers a near-certain winner. It’s not a term defined by any sportsbook, and no bet is guaranteed to win. Using the word "lock" to describe a wager reflects personal confidence, not a mathematical guarantee. Treating any bet as a lock isn’t responsible gambling: even heavy favorites lose regularly, and sports outcomes are inherently uncertain. Approach any pick described as a lock cautiously.

Middle

A middle is a desirable outcome in which a bettor wins both sides of the same event. It happens when a bettor placed one side of a line early, then placed the opposite side at a different number after the line moved, and the final result falls between both numbers. For example, a bettor who took the underdog +3.5 early in the week and later took the favorites -1.5 after the line moved would win both bets if the favorites win by exactly 2 or 3 points. Middles are more likely in games where lines shift significantly from open to close. The bettor risks losing one side while the other pushes, but when a middle hits, both bets pay out.

Moneyline

A moneyline bet is a wager on which team will win the game outright, with no point spread involved. The favorite is priced with a negative number, like -175. The underdog carries a positive number, like +148, meaning a smaller stake returns more in profit. Moneyline betting is the simplest form of sports wagering: pick the winner, collect if correct. The trade-off compared to spread betting is that backing heavy favorites on the moneyline requires a large stake to generate meaningful profit, while betting underdogs on the moneyline can produce significant returns on a smaller investment.

Nickel

Sports betting slang for a $500 wager.

No Action

A no-action result means a wager is canceled and the original stake is returned to the bettor in full. Common causes for a no-action grade include: a postponed game that isn’t rescheduled, a player prop in which the named player doesn’t participate (like a quarterback being ruled out before kickoff), or a listed starting pitcher in baseball who doesn’t take the mound. When a leg of a parlay is graded no-action, it’s typically removed from the parlay and the remaining legs are recalculated at the reduced odds.

Odds Boost

An odds boost is a sportsbook promotion that temporarily increases the payout on a specific bet above its standard market price. For example, a player's touchdown scorer odds might be boosted from +200 to +350 for a limited window. Caesars Sportsbook offers odds boosts on featured games, players, and parlays throughout the NFL season and major events across all sports. Odds boosts are subject to maximum bet limits and specific terms, so reviewing the details of each boost is worthwhile before placing the wager.

Off the Board

Off the board, often abbreviated OTB, means a game or market for which no odds are currently posted. The sportsbook temporarily suspends betting, usually in response to unexpected news like a significant injury, a weather event, or unusual betting patterns that require the sportsbook to review its pricing. Bets that are already confirmed before a game went off the board remain in action unless explicitly canceled by the sportsbook.

Opening Line

The opening line is the first set of odds posted for a game or event, before significant betting action has been placed. It reflects the sportsbook's initial pricing based on power ratings, available information, and market assessment. As betting volume accumulates and new information emerges, the opening line often moves to a different closing line. Comparing the opening line to the closing line shows how the market absorbed new information and where professional bettors applied pressure throughout the week.

Parlay

A parlay combines 2 or more individual wager selections into a single bet, requiring all legs to win for the parlay to pay out. Because each added leg multiplies the odds, parlay payouts are substantially larger than single-game wagers. A standard 3-leg parlay of 3 -110 bets pays approximately +595. Any single losing leg causes the entire parlay to lose. Parlays are among the most popular bet types at Caesars Sportsbook. Same Game Parlays lets bettors build parlays entirely from selections within a single game, linking outcomes like team spread, player props, and game totals into one combined bet.

Pick / Pick'em

A pick, or pick'em, describes a game in which neither team is assigned a point spread, meaning both teams are considered roughly equal. Bettors choose which team wins the game outright. In a pick'em game, both sides are typically priced near -110. Pick'em matchups are common when 2 closely matched teams play, or when a sportsbook sets the spread at 0 and converts the market to pick pricing.

Point Spread

A point spread is a margin of victory assigned to the favored team that determines the outcome of a spread wager. The favorite must win by more than the spread for bets on that side to win. The underdog must win outright or lose by fewer points than the spread. For example, if the Bills are -4.5 against the Jets, the Bills must win by 5 or more for Bills spread bettors to collect. Jets bettors win if the Jets win or lose by 4 or fewer. Standard point spread odds are -110 on both sides at Caesars Sportsbook. The point spread is the most common bet type in NFL and college football wagering.

Prop Bet

A prop bet, short for proposition bet, is a wager on a specific statistical outcome or event that’s independent of the final score. Player props include markets such as passing yards, rushing yards, receiving yards, touchdown scorer, and strikeouts pitched. Team props include first team to score, total team touchdowns, and whether a game goes to overtime. Prop bets are available on every NFL game at Caesars Sportsbook.

Puck Line

The puck line is hockey's version of the point spread, set at a standard -1.5 goals for the favorite and +1.5 goals for the underdog. A puck line favorite must win by 2 or more goals. A puck line underdog covers if it wins outright or loses by exactly 1 goal. Unlike football spreads that adjust based on team quality, the puck line number stays fixed at 1.5 and the odds change to reflect team strength. A heavy favorite might be priced at -1.5 (-240), while a more balanced matchup might sit at -1.5 (-140).

Push

A push occurs when the final result lands exactly on the posted point spread or total. All stakes are returned. For example, if the spread is -3 and the favorite wins by exactly 3, all spread bets push. Half-point spreads, such as -3.5, eliminate the possibility of a push by ensuring the margin of victory can never equal the spread exactly.

Return on Investment (ROI)

Return on investment (ROI) in sports betting is net profit divided by total amount wagered, shown as a percentage. A bettor who wagers $10,000 over a season and finishes with $500 in net profit has a 5% ROI for the period. Positive ROI means the bettor won more than the juice cost them over the measured sample. Professional bettors track ROI by sport, bet type, and time period to identify where their true edge exists. A 5 - 7% long-term ROI is considered excellent in sports betting given the structural negative expected value created by standard juice at -110.

Reverse Line Movement

Reverse line movement occurs when a betting line moves in the opposite direction from where the public betting volume would logically push it. For example: if 75% of public bets are on Team 1, the line would normally move toward them; but If the line moves toward Team 2, it signals that a smaller number of large wagers on them, overriding the public money and pushing the number the other way. Reverse line movement is one of the primary signals bettors use to identify which side is receiving sharp action.

Round Robin

A round robin is a series of smaller parlays automatically generated from a set of 3 or more selections. Instead of combining all picks into a single large parlay where one loss ends the ticket, a round robin builds every possible 2- or 3-team parlay combination from the group. For example: selecting 4 teams in a round robin creates 6 separate 2-team parlays. If one leg loses, the parlays that don’t include that leg can still pay. Round robins reduce parlay risk in exchange for a larger total stake across all the individual combinations.

Run Line

The run line is baseball's version of the point spread, set at a standard -1.5 runs for the favorite and +1.5 runs for the underdog. A run line favorite must win by 2 or more runs for run line bettors to collect. A run line underdog covers if it wins outright or loses by exactly 1 run. Like the puck line in hockey, the run line spread stays fixed and the odds adjust to reflect team quality and starting pitching. A strong pitching favorite in a low-scoring matchup might be priced at -1.5 (-185); a more even matchup might sit closer to -1.5 (-130).

Same Game Parlay (SGP)

A Same Game Parlay is a parlay built entirely from selections within a single game. Rather than combining legs across multiple games, an SGP links multiple outcomes from the same event. Caesars Sportsbook offers Same Game Parlays on all NFL games and major sporting events. SGP legs are correlated, so outcomes within the same game are related, and Caesars Sportsbook factors that correlation into pricing when building your Same Game Parlay on the bet slip.

Sharp / Wiseguy

A sharp, also called a wiseguy, is a professional or high-volume sports bettor whose wagers are large and consistent enough to move betting lines. Sharps are distinguished from recreational bettors by their sustained ability to find and exploit value against the posted line. Sportsbooks closely monitor sharp betting patterns, and a notable sharp bet on one side of a game can cause the line to move quickly even when the total volume involved is a small share of the overall handle. Identifying sharp-side indicators like reverse line movement and steam moves is a focus of many intermediate and advanced bettors.

Square

A square is a recreational or casual bettor, also called "the public." Squares tend to bet on favorites, popular teams, national media darlings, and high-visibility games. They typically wager based on team loyalty or familiarity rather than analytical line assessment. Sportsbooks account for square behavior when setting lines, knowing that recreational money consistently flows toward popular teams regardless of the posted price. The terms "sharp" and "square" describe opposite ends of the bettor spectrum.

Steam

Steam refers to sudden and significant line movement across multiple sportsbooks simultaneously, usually indicating coordinated action from sharp bettors or betting syndicates. When a line steams, it moves quickly: a spread might shift from -3 to -5 in minutes as multiple sportsbooks adjust exposure on the side being hammered. Steam moves represent the collective judgment of professional bettors acting together, not casual public money arriving gradually. Bettors who track steam in real time use it as a signal that sharp money has identified value on one side of a game.

Straight Bet

A straight bet is the most fundamental type of sports wager: a single selection on a single outcome, graded win or loss. A straight bet can be a point spread wager, a moneyline bet, or a total (also called an over/under). It’s the building block for every other bet type. Parlays, teasers, and round robins are constructed by combining multiple straight bet legs. Straight bets are recommended for new bettors learning to track performance, manage bankroll, and develop a feel for line value before adding the complexity of multi-leg wagers.

Superfecta

A superfecta is a horse racing wager in which the bettor must correctly predict the first 4 finishers in exact finishing order. It’s one of the most difficult exotic wager types and carries correspondingly large payouts. A superfecta box allows bettors to cover multiple combinations of 4 horses finishing in any arrangement among the top 4 positions, at the cost of a larger total stake. The Kentucky Derby superfecta is one of the most wagered exotic bets in American horse racing.

Teaser

A teaser is a modified parlay that allows bettors to move the point spread or total on each leg in their favor, in exchange for reduced payout odds. In football betting, the most common teaser adjustment is 6 points, so each spread shifts 6 points toward the bettor: a team at -7.5 becomes -1.5, and a team at +1.5 becomes +7.5. All legs of a teaser must still win for the teaser to pay out, and the reduced odds reflect the value of the point adjustment.

Total (Over/Under)

A total bet, also called an over/under, is a wager on the combined final score of both teams in a game. The sportsbook posts a number, like 48.5 for example, and bettors choose whether the actual combined score will be over or under that number. If 2 teams combine for 55 points on a total bet of 48.5, over bettors win. Caesars Sportsbook offers standard full-game totals alongside first-half totals, team totals, and live in-game totals on eligible games across all major sports.

Tout

A tout is a person who sells sports betting picks, predictions, or analysis through a paid subscription service. Touts advertise win rates and records to attract clients. The quality of tout services varies widely, and many operations have been criticized for selective record-keeping and misleading win percentage claims. Bettors should approach any paid pick service cautiously, especially any tout that claims guaranteed winners or high long-term win rates. Developing independent analysis and keeping disciplined records is more reliable than relying on outsourced picks.

Three-Way Result (1x2)

The 1x2 market is a soccer betting format offering 3 distinct outcomes: a home win (1), a draw (x), or an away win (2). Unlike moneylines in other sports, the 1x2 market includes the draw as a separate outcome with its own odds. Bettors must select one of the 3 options. A bettor who doesn’t select the draw and whose game ends in a tie loses the wager, which is the key difference from standard US sports moneylines that only have 2 outcomes. Caesars Sportsbook offers 1x2 markets on major domestic and international soccer competitions.

Unit

A unit is a standardized, fixed bet size used as a reference point for tracking betting performance without revealing raw dollar amounts. One unit typically represents 1 - 2% of a bettor's total bankroll. Bettors and analysts express pick confidence in units: "2 units on the favorite" signals a larger wager than a standard 1-unit bet. Expressing season performance in units, such as finishing up 35 units, allows bettors with different bankroll sizes to compare results on equal terms. Using a consistent unit size is a core component of flat betting and disciplined bankroll management.

Value

Value is the central concept of disciplined sports betting. A bet has value when a bettor believes the true probability of an outcome is higher than the probability implied by the posted odds. For example, if a bettor estimates a team has a 55% chance of winning but the moneyline implies only a 45% probability, the bet offers value. Finding and consistently wagering on value bets is the long-run edge that professional bettors pursue. Betting with positive expected value over a large sample is the foundation of profitable sports wagering, though no individual bet is guaranteed regardless of the edge.

Vigorish

Vigorish, commonly shortened to "vig," is the same as juice: the sportsbook's built-in margin on every wager. See Juice for the full definition and break-even calculation.

Wiseguy

Wiseguy is an alternative term for a sharp bettor: a professional, high-volume sports bettor whose wagers consistently move lines. See Sharp / Wiseguy for the full definition.

Every term in this sports betting glossary describes something real: a bet type, a market mechanic, a piece of odds language, or a strategic concept that appears on Caesars Sportsbook every day. Understanding this vocabulary is the foundation for making more informed decisions, reading your bet slip accurately, and following the full range of markets available.

Caesars Rewards on Every Eligible Wager. Caesars Rewards is the loyalty program that rewards eligible bettors for their activity. Every qualifying bet on Caesars Sportsbook contributes toward Caesars Rewards, which can be used across Caesars Rewards destinations. It’s the only sportsbook loyalty program that connects sports wagering to a full hospitality network.

A Bet Slip That Reflects Every Term in This Glossary. The Caesars Sportsbook app displays American odds, spreads, totals, moneylines, Same Game Parlays, live markets, and prop bets in a single unified bet slip.

Odds Boosts, Same Game Parlays, and Real-Time Live Betting. Caesars Sportsbook offers daily odds boosts on featured matchups and players, Same Game Parlay builders on every NFL and major sports game, and live betting markets that update in real time from kickoff to final whistle.

Available in More Than 25 States. Caesars Sportsbook operates in more than 25 legal wagering states, making it one of the most widely available legal sportsbooks in the country. Availability varies by state; check Caesars Sportsbook for the current list of operating states.

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What is a point spread in sports betting?

A point spread is a margin of victory assigned to the favored team: the favorite must win by more than that margin, and the underdog must win outright or lose by fewer points. Standard point spread odds at Caesars Sportsbook are -110 on both sides.

What does juice or vig mean in sports betting?

Juice, also called vig or vigorish, is the sportsbook's built-in commission on a bet, usually expressed as -110 odds. So a bettor must wager $110 to win $100 in profit. At standard -110 juice, a bettor must win 52.38% of bets to break even over time.

What is a parlay bet?

A parlay is a single bet combining 2 or more individual selections, with all legs required to win for the parlay to pay out. Parlay payouts are larger than single-game bets because each additional leg multiplies the combined odds.

What does it mean to cover the spread?

Covering the spread means the favored team won by more than the assigned point spread, or the underdog won outright or lost by fewer points than the spread. Bets on the covering side win; bets on the non-covering side lose.

What is live betting in sports?

Live betting allows wagers to be placed while a game is in progress, with odds adjusting in real time based on the score, clock, and field position. Caesars Sportsbook offers live betting markets on every NFL regular-season and postseason game.

How do American betting odds work?

American odds use a plus (+) or minus (-) number to show underdogs and favorites: a negative number shows how much you must bet to win $100, and a positive number shows how much a $100 bet wins in profit. Caesars Sportsbook displays all odds in American format by default.

What is a futures bet in sports betting?

A futures bet is a wager on a season-long or tournament outcome, like division champion or MVP, placed before the result is known with odds that update as the season progresses. Caesars Sportsbook offers futures markets year-round on all major professional and college sports.