What does ace bet mean?
What does ace bet mean?
An ace in tennis is a legal serve that lands in the correct service box without the receiver's racket making any contact with the ball. The server wins the point immediately. If the receiver touches the ball at all, even without returning it successfully, the serve does not count as an ace.
An ace bet is a wager placed on aces as a statistical event within a tennis match. Rather than betting on who wins the match, you are betting on how many aces are served, which player serves more, or which player serves the first one. It is a prop market, available across several formats depending on the sportsbook.
Ace bet types
Total aces (over/under, combined)
The most common ace market. The sportsbook sets a combined line for both players, and you choose whether the total will finish over or under that number. The line covers both players' serves across all sets including tiebreaks.
Example:
- Total aces line set at 19.5
- Over at -115 (1.87)
- Under at -105 (1.95)
The match ends with Player A serving 12 aces and Player B serving 9
- Total: 21. Over wins.
Total aces (over/under, individual player)
The same over/under format applied to a single player's ace count only. The line is set based on that player's serving tendencies, the surface, and the opponent's return game.
Example:
- Player A over 9.5 aces at +130 (2.30)
- Player A finishes the match with 12 aces
- Over wins.
Most aces
A two-way market on which player will serve more aces across the full match. Both players are listed with their respective odds. Some sportsbooks include a tie option.
Example:
- Player A most aces -140 (1.71)
- Player B most aces +115 (2.15)
- Player A serves 14 aces
- Player B serves 11
- Player A wins the market
First ace
A wager on which player will serve the first ace of the match. Settled as soon as the first ace is recorded, regardless of the final match result. Settlement is fast, making it a popular option once a match goes live. For a broader look at how in-play markets work across sports, see our guide to live betting.
Example:
- Player A first ace -120 (1.83)
- Player B first ace -105 (1.95)
- Player B serves the opening ace of the match
- Player B wins the market.
Ace bet vs. related markets
Ace bet vs double faults bet
Double faults are the opposite statistical event to aces. A double fault occurs when a player misses both serve attempts, giving the point to the opponent. Double fault markets follow the same over/under and most structure as ace markets. The key difference is direction: aces reflect serving dominance, double faults reflect serving failure. A player can record a high ace count and a high double fault count in the same match.
Ace bet vs total games
Total games is a match-level market on the combined number of games played. It is a broader structural market compared to ace betting. A high ace count often correlates with dominant service games, but the two markets settle independently on different statistics.
How surface affects ace betting
Playing surface has a direct effect on how often aces occur, and sportsbooks account for this when setting ace lines.
Grass courts produce the highest ace counts at the professional level. The low, fast bounce gives the receiver less time to react. Hard courts sit in the middle range. Clay courts slow the ball significantly after the bounce, giving receivers more time to reach the serve. Ace totals on clay are consistently lower than on grass or hard courts.
This means lines for the same two players will typically be set higher at Wimbledon than at the French Open. John Isner holds the ATP record for most career aces, with 14,411 served across ATP Tour and Grand Slam singles matches, according to the ATP. A figure that shifted considerably depending on the surface he was playing on.
Settlement rules
Ace markets are typically settled on the full match result including tiebreaks, unless the sportsbook specifies otherwise. Tiebreak points are served under the same rules as regular games, so aces during tiebreaks count toward the total in most cases.
If a player retires during the match, ace bets are usually voided and stakes returned. Settlement policies on retirements vary between sportsbooks. Always confirm whether the line covers the full match, individual sets, or a defined number of games before placing.
Where ace markets are available
Ace betting is most widely available for elite tournaments, where statistical coverage is comprehensive and sportsbooks price the markets with confidence.
- ATP and WTA Grand Slams (Australian Open, French Open, Wimbledon, US Open)
- ATP Masters 1000 and WTA 1000 events
- ATP Finals and WTA Finals
- Davis Cup and Billie Jean King Cup ties
Market availability narrows significantly for lower-tier ATP Challenger and ITF events. In those tournaments, most sportsbooks offer only match winner, set betting, and total games. Always check what is available before the match begins, as ace markets are not universally offered.
Conclusion
An ace bet is a prop market built around one of tennis's most measurable stats. Aces are tracked consistently at the professional level and counted the same way across every sportsbook, so there is no ambiguity in how the market settles.
If you want a prop bet with a clean, verifiable outcome, this is one of the more reliable options available. For more on betting markets and terminology, visit The Advantage blog.
Frequently asked questions
Does an ace count if the receiver tries to return it?
No. If the receiver makes any contact with the ball, the serve is not counted as an ace under standard side bet rules, even if they cannot return it successfully. The ball must pass without any racket contact.
Are aces in tiebreaks included in ace bet settlement?
In most cases yes. Tiebreak points are served under the same rules as regular games, so aces during tiebreaks typically count toward the total. Always confirm with your sportsbook before placing.
Can you bet on ace markets in-play?
Yes. First ace is particularly popular in the live betting market. Total ace lines also update in-play as the match progresses. Availability depends on the sportsbook and tournament.
Do ace bets include both first and second serves?
Yes. An ace can be served on either the first or second serve. Most aces occur on first serves due to higher ball speed, but second-serve aces are counted equally.
Are ace markets available for women's tennis?
Yes. Ace markets are commonly available for women's matches at Grand Slams and WTA 1000 events, though lines are set lower than for men's matches given the generally lower ace counts in women's tennis.
Do ace bets settle if the match is not completed?
No. Ace bets are typically voided if a match isn’t completed, and all stakes are returned unless the market already settled.