Tennis is one of Ireland’s most bet-on sports year-round — Grand Slams, Davis Cup, ATP and WTA tour events offer markets every week of the calendar. This hub covers how tennis odds work, the key markets for Irish punters, the Grand Slam schedule, and links to all our in-depth tennis guides. All bets: 18+ only. No result in tennis betting is guaranteed.
Tennis Betting Guides
Our full library of tennis betting content, from first-time punters to experienced market followers. Each page covers one topic in depth: markets, strategy, and how Irish GRAI-licensed sites handle tennis.
How Tennis Betting Odds Work
Tennis odds in Ireland are displayed in decimal format on most GRAI-licensed betting sites. A price of 1.50 means a €10 stake returns €15 total (your €10 stake plus €5 profit). A price of 3.00 means a €10 stake returns €30. The bookmaker builds a margin into these prices, meaning the combined implied probability of all outcomes exceeds 100% — that difference is the bookmaker’s edge. In a standard match winner market across two players, that margin typically sits between 3% and 6% depending on the site and the event.
Tennis odds are influenced by ATP or WTA rankings, head-to-head records, surface performance, recent form and draw position. Because tennis is a one-on-one sport with no draws in the match winner market, the pricing is simpler than football — there are only two outcomes. This also means there is no three-way margin spread across a draw option, so the market is relatively efficient on high-profile matches.
In-play (live) tennis betting changes the picture significantly. Odds update point by point — a break of serve can shift a price dramatically within seconds. Some sites also suspend markets between points, which limits the ability to bet at a specific price in a fast-moving game. Live betting on tennis rewards knowledge of the sport and discipline: it is easy to chase a price that has already moved.
Key Tennis Betting Markets for Irish Punters
GRAI-licensed sites offer a range of tennis markets beyond the simple match winner. The main ones Irish punters use are listed below.
The simplest tennis market: pick one of two players to win the match. No draw outcome exists. Odds reflect the implied probability of each player winning from the opening coin toss. Available pre-match and in-play on most licensed sites.
Predict the exact set score of the match (e.g. 2–0, 2–1 in a best-of-three; 3–0, 3–1, 3–2 in a best-of-five). Odds are significantly longer than match winner, but the range of outcomes is wider. Best-of-five Grand Slam matches offer more set betting options and naturally longer prices.
One player receives a virtual set head-start. At -1.5 sets, the favourite must win by two sets or more. At +1.5 sets, the underdog wins the bet if they win at least one set, even if they lose the match. Useful for getting better value on a heavy favourite or backing an underdog to be competitive.
Bet on the total number of games played across the whole match clearing a threshold (e.g. over or under 22.5 games in a best-of-three). The line moves based on the expected competitiveness of the match. A straight-sets win by a heavy favourite means fewer games; a close three-setter means more. Surface matters: clay courts tend to produce longer rallies and more games.
Back a player to win the entire tournament before it starts. Outright markets are open for all four Grand Slams, Masters 1000 events, WTA 1000 events and beyond. Prices start wide before the draw is made and tighten once the bracket is set. Cash-out is available on outright bets on most sites, allowing you to lock in a profit or limit a loss before the final.
Live tennis markets allow betting during the match on current set winner, next game winner, next set score and running match winner. Because tennis scoring is non-linear — a tiebreak game counts the same as any other — in-play prices can be highly volatile. Only bet live amounts you can afford to lose, and do not chase a price that has already moved past the value point.
Grand Slam Calendar
The four Grand Slams are the biggest tennis events on the betting calendar. Each is played on a different surface, which significantly affects player performance and market shape. Dates shift slightly year to year; the schedule below reflects the standard annual calendar.
🇦🇺 Australian Open
When: January
Surface: Hard (Plexicushion)
Format: Best of five sets (men), best of three (women)
The first Grand Slam of the year. Hard courts reward all-round players. Early rounds in Melbourne’s summer heat can produce upsets.
🇫🇷 Roland Garros
When: May – June
Surface: Clay
Format: Best of five (men), best of three (women)
The clay court major. Clay specialists dominate. Matches last longer, games totals run higher, and the draw can be brutal for serve-dependent players.
🇬🇧 Wimbledon
When: July
Surface: Grass
Format: Best of five (men), best of three (women)
The oldest Grand Slam. Grass suits big servers and net players. First-round upsets are more common than on hard courts, creating potential value in underdog markets.
🇺🇸 US Open
When: August – September
Surface: Hard (DecoTurf)
Format: Best of five (men), best of three (women)
The final Grand Slam of the season. Night sessions in New York’s Arthur Ashe Stadium produce a distinctive atmosphere. Tie-breaks in all sets (including the fifth) reduce marathon match risk.
See our Grand Slam betting guide for detailed market breakdowns, surface strategies and what to look for in the draw at each major.
Responsible Gambling
No tennis bet is guaranteed — not on a Grand Slam final, not on a heavy favourite, not on a live market. Upsets happen at every level and in every round. Set limits before you start, never chase losses, and do not stake more than you can afford to lose.
If you or someone you know is struggling with gambling, free and confidential support is available:
- Gambling Awareness Trust: 1800 753 753 (freephone, Ireland)
- gamblingcare.ie — online self-help tools, chat support and referrals
- Use deposit limits and cool-off tools offered by GRAI-licensed sites
18+ only. GRAI-licensed operators are required to offer responsible gambling tools to all Irish customers.
Place Your Tennis Bet on a GRAI-Licensed Site
Our partner operator holds a current GRAI remote betting licence (GRAI-0191-RB-26-0001), valid through September 2029. Fully regulated for Irish players.
Bet on Tennis — GRAI Licence GRAI-0191-RB-26-0001 →18+ only. Gambling can be harmful. Gambling Awareness Trust: 1800 753 753 | gamblingcare.ie
Frequently Asked Questions
Match winner is the most used tennis market — two outcomes, no draw, easy to follow. Set betting (predicting the exact set score) is popular for Grand Slam matches because the best-of-five format produces more varied scorelines and longer odds. Over/under games markets attract Irish punters who want to bet on match duration rather than the winner. Outright tournament winner markets are busy in the weeks leading up to each Grand Slam, and in-play betting is growing as sites improve their live coverage.
Yes. GRAI-licensed betting sites offer in-play markets on ATP, WTA and Grand Slam matches. You can bet on set winner, next game, over/under games remaining and match winner at any point during play. Odds update continuously between points, and some sites briefly suspend markets on each serve. Live tennis betting rewards sport knowledge and discipline. No live bet is guaranteed and prices move fast — never stake more than you can afford to lose.
Set handicap applies a virtual set advantage or deficit to one player before the match. At −1.5 sets, the favourite must win by two sets or more (e.g. 3–0 or 3–1 in a best-of-five) for the bet to win. At +1.5 sets, the underdog wins the bet as long as they win at least one set, even if they lose the overall match. Set handicap is a useful way to get better odds on a dominant favourite or take a position on an underdog being competitive rather than winning outright.
No Grand Slam is definitively better for betting — each surface produces different dynamics. Wimbledon on grass sees more first-round upsets than hard-court Slams, which can create value in underdog markets. Roland Garros on clay heavily rewards clay specialists, reducing the chance of a surprise winner. The Australian Open and US Open on hard courts tend to follow rankings more reliably. The most important thing is understanding how the surface affects the specific draw, not targeting one event as a default. No outcome is guaranteed.
GRAI (Gambling Regulatory Authority of Ireland) has issued remote betting licences since 1 July 2026. Our partner operator holds licence GRAI-0191-RB-26-0001, valid from 16 September 2026 to 15 September 2029. Before betting on tennis with any site, check that it holds a current GRAI remote betting licence. It is important to note that GRAI has not issued any casino (gaming) licences — those are expected from 2027–2028. A GRAI betting licence covers all sports betting markets, including tennis.