US Open Betting Guide: How to Bet on Tennis's Last Slam

Betting the US Open means pricing seven rounds of hard-court tennis in New York at the end of a long season. There are many sensible ways to approach it. Match moneylines are the simplest starting point for most bettors. Summer hard-court form usually tells you more than world ranking alone. Outright bets are fun but tend to carry the biggest bookmaker margin, so many bettors keep them small.

Below we cover how the event works, which markets you can bet and how to read the odds. We also cover the conditions at Flushing Meadows that move prices: heat, two roofed stadiums, night sessions and late-season fatigue.

This page is about the tennis Grand Slam. Golf's U.S. Open is a separate event held in June; for that one, start with our golf betting guide. For tennis basics that apply at every tournament, see the tennis betting guide.

How US Open betting works: format, draw and calendar

The US Open is the fourth and last Grand Slam of the season. It is played on outdoor hard courts at the USTA Billie Jean King National Tennis Center in Flushing Meadows, New York. The event dates back to 1881. It has been an Open event, meaning professionals can enter, since 1968, and it moved to its current site in 1978.

Format and venue details per the USTA and the Grand Slam Board. Exact dates move each year; check the official schedule before placing futures bets.

The draw decides who can meet whom, and that matters for every round-by-round market. Under the Grand Slam seeding rules:

• Seeds 1 and 2 are placed in opposite halves, so they can only meet in the final.
• Top-4 seeds cannot meet before the semi-finals, and top-8 seeds not before the quarter-finals.
• Top-16 seeds are kept apart until the fourth round (last 16).
• All 32 seeds avoid each other until the third round (last 32).
• 16 qualifiers and 8 wild cards fill spots in each singles draw. Qualifiers win three matches at Flushing Meadows the week before the main draw. Wild cards usually go to American players, returning veterans and players from partner federations.

Seedings follow the ATP and WTA rankings. A ranking measures points earned over the past 12 months across all surfaces. It does not measure how good a player is on a fast outdoor hard court, and that gap is where a lot of US Open betting work starts.

Once the draw is published, map each seed's likely path. A top-8 seed with a big-serving unseeded player in the second round and a strong hard-court seed in the fourth round has a harder route than the number next to their name suggests. "To reach the quarter-finals" prices do not always reflect that.

Which bets can you place at the US Open?

Most major sportsbooks offer the same core tennis markets at the US Open. What differs is how the conditions and the format shift the prices.

Market list reflects the standard Grand Slam menu at major sportsbooks. Individual platforms add or drop props.

Across all of these markets, keep in mind:

• Retirement rules differ by platform. Some void a match bet if a player retires. Others settle it once one set is complete, and some pay the player who advances. Heat-related retirements happen in New York, so read the rule before you bet.
• Men's and women's matches price differently. Best of three gives the underdog fewer sets to steal a match, so upsets are more common in women's draws. Our guide to ATP vs WTA betting covers this in detail.
• Props reward homework. Ace and total-games lines are often set from tour-wide averages that include clay matches. Players who serve well on hard courts can beat those averages. See tennis prop bets explained for how each prop settles.

How do you read US Open tennis odds?

Odds tell you two things: what a bet pays and how likely the bookmaker thinks the result is. Most US sportsbooks show American odds. Most betting platforms elsewhere show decimal odds. You can switch formats in our navbar.

• American odds with a plus sign show profit on a $100 stake. +150 pays $150 profit.
• American odds with a minus sign show what you must stake to win $100. -200 means a $200 stake wins $100.
• Decimal odds show the total return per 1 unit staked, including the stake. 2.50 returns 2.50 units, 1.50 profit.

To turn odds into the probability the price implies:

Our calculations. Implied probability includes the bookmaker's margin.

Worked example. A match is priced -110 on both players. Each side implies 52.4%, so the two add up to 104.8%. The extra 4.8% is the bookmaker's margin. In a two-player match, the true probabilities must add up to 100%. Outright markets with 128 players can add up to far more than 100%, which is why we treat them as the most expensive bets on the board.

Why best of five helps men's favourites

Best of five does two things at once. It makes the better player more likely to win the match. It also makes a clean straight-sets win less likely. Here is our calculation for a player who wins any given set 60% of the time, assuming sets are independent:

• Best of three: wins the match about 64.8% of the time, and wins in straight sets 36.0% of the time.
• Best of five: wins the match about 68.3% of the time, but wins 3-0 only 21.6% of the time.

Real sets are not fully independent, because fatigue and momentum shift them. The direction still holds. A men's favourite is safer on the moneyline than the same edge would be in a women's match, and 3-0 set bets need a much bigger gap between the players. Our Grand Slam betting guide walks through the rest of the best-of-five math.

How do heat, roofs and night sessions change US Open prices?

The US Open is a hard-court event, but conditions change from session to session. The same two players can face a different match at 1pm than at 8pm. Court speed also varies from year to year, so treat any "fastest Slam" claim with care. In general, first-strike tennis, meaning big serves and early aggression, is rewarded more here than on clay, though plenty of counter-punchers have won in New York too.

• Afternoon heat. Late-summer New York is often hot and humid in the first week. Heat makes the ball livelier and the court quicker. It also drains players in long men's matches. The tournament runs an extreme heat policy that can allow extra breaks, but the physical cost of a five-setter in the sun still carries into the next round.
• Two roofs, not three. Arthur Ashe and Louis Armstrong have retractable roofs; Grandstand and the outside courts do not. With a roof closed there is no wind, and players often describe the ball as heavier and slower. A match moved indoors suits steady baseliners more than it suits players who rely on the serve in open air.
• Night sessions. Evening sessions on Arthur Ashe, which usually start around 7pm local time, feature the biggest names. Cooler air tends to slow the ball, and the crowd is louder than at other Slams. Some players thrive in that setting and others struggle; career records on Ashe at night are worth checking. Our night-session betting guide covers this in detail.
• The Arthur Ashe crowd. Arthur Ashe is the largest tennis stadium in the world, and the atmosphere is louder and busier than at the other Slams. American players often get strong home support, especially in the early rounds. How much that helps varies a lot from player to player, so look at individual records in New York rather than assuming a home boost.
• Wind on outside courts. Open courts pick up swirling wind on some days. Wind adds errors and reduces the value of a big serve, which can pull total-games lines in either direction.
• Retirements in the heat. An early-round retirement can void, lose or settle your bet depending on the platform's rule. This risk is highest in day sessions during the first week.

Use the order of play and the forecast together. Before betting a day match, check the court, the start time and whether the roof is likely to close. Our US Open weather betting guide explains how to read those inputs.

What do Toronto, Montreal and Cincinnati tell you before the US Open?

The summer hard-court swing gives some of the most relevant pre-tournament evidence of any Slam. The Canadian Open, which alternates between Toronto and Montreal, and the Cincinnati Open are the two big events before New York. Both are played on outdoor hard courts in similar conditions.

Signals are general patterns, not rules. Check each player's recent results on the ATP and WTA sites.

Ways to use the swing without overreacting:

• Weigh the level of opposition, not just the result. A semi-final loss to a top-5 player is better evidence than a title won against a weak draw.
• Check surface-specific ratings. Tennis Abstract publishes Elo ratings that can be filtered by surface. Elo adjusts after every match based on opponent strength, so it often ranks hard-court quality better than the official ranking. It reacts slowly to sudden changes such as injury, so combine it with recent news.
• Watch the serve numbers. First-serve points won and return points won on hard court are among the stats that travel best to New York. Our guide to the tennis stats that predict outcomes explains which ones to trust.

The swing shows who arrives sharp, but it says much less about who stays healthy for two weeks. Players with long runs in both events can fade in the second week in New York, and markets built on August headlines do not always price that in.

Who is usually favored to win the US Open, and where are the best bets?

The favourite each year is simply the player the market rates highest on current hard-court form. In recent years that has meant a very short list at the top of the men's draw. Per the tournament's records, Jannik Sinner won the men's title in 2024 and Carlos Alcaraz in 2025. Aryna Sabalenka won the women's title in both of those years.

Predictions for any single year, including 2026, go out of date fast. Injuries, the draw and summer form all move the market in the weeks before the event. Our tennis odds page carries current prices. This guide sticks to the patterns that tend to hold from year to year.

Long shots do win in New York

The US Open has a recent record of first-time major winners, per the tournament's roll of honour:

• Men: Dominic Thiem (2020), Daniil Medvedev (2021) and Carlos Alcaraz (2022) each won their first Slam here.
• Women: Naomi Osaka (2018), Bianca Andreescu (2019), Emma Raducanu (2021) and Coco Gauff (2023) did the same.
• Raducanu's 2021 title came as a qualifier, the first time a qualifier won a Slam in the Open Era.

That history is a reason to keep an open mind, especially on the women's draw. Spreading money across ten long-shot outrights is a different matter, because the margin in those markets eats much of the value.

Where the better value tends to sit

There is no single right way to bet the US Open. These are the approaches experienced bettors use most, and many combine them:

• Match-by-match betting. Many disciplined bettors put the bulk of their stakes here. Margins are lowest, and you can react to conditions and fatigue each day.
• Stage and quarter markets. Once the draw is out, "to reach the quarter-finals" or "quarter winner" bets let you back a player on a soft section of the draw. The margin is lower than on the outright.
• Selective outrights. A small outright bet before the draw, or right after it on a player with a clear path, is a valid approach. Keep the stake small.
• First-round spots. Seeds whose ranking was built on clay, or who arrive with poor summer results, are the usual upset candidates. See why top seeds lose in the US Open first round and how to pick underdogs at the US Open.

For sizing long-horizon bets, our tennis futures guide covers margins and hedging.

What mistakes do new US Open bettors make?

Bad luck is part of betting, but a lot of avoidable losses at the US Open come from a few repeat habits.

• Betting the ranking, not the player. A top-15 player whose points come mainly from clay can be overpriced in New York. Check hard-court results and surface Elo before backing the seed.
• Too much on outrights. A common approach is to cap all futures at around 5-10% of the bankroll you set aside for the tournament. Put the rest in match bets.
• Parlaying heavy favourites. Four players at short prices feel safe, but one upset or retirement ends the ticket. Combined margins also add up across each leg.
• Ignoring retirement and walkover rules. The same match can settle three different ways on three different platforms.
• Forgetting the tiebreak format. A deciding set that reaches 6-6 ends in a 10-point tiebreak, which counts as one game. Total-games and game-handicap bets need to account for that.
• Chasing in live markets. Live prices react quickly, and TV pictures often run behind the data feed. Bet live only when you have a specific reason, such as a visible injury or a clear shift in serve quality, not to win back a pre-match loss.
• Staking by gut feel. Many bettors use flat stakes of around 1% of bankroll per match. Others scale between about 0.5% and 2% depending on confidence. Either works if you stick to it. Our tennis value and bankroll guide compares the two.

Set a budget for the whole two weeks before the first ball. If betting stops feeling like entertainment, our responsible gambling guide lists limits, tools and places to get help.

How to place your first US Open bet, step by step

This walkthrough uses a single first-round moneyline bet, one simple place to start. Experienced bettors work in many different ways, but the steps below cover the basics.

1. Pick one match. Choose a men's first-round match between players you can research quickly: a seed against a qualifier or wild card.
2. Check summer form. Look up each player's results in Toronto or Montreal, Cincinnati and qualifying, plus their hard-court Elo.
3. Check the conditions. Find the court and session on the order of play. Note whether it is a day match in heat, a night match or under a roof.
4. Convert the price. Turn each player's odds into implied probability using the table above. Decide whether your own estimate is higher than the price suggests. If it is not, skip the match.
5. Compare betting platforms. Prices on the same match often differ. The best available price improves your return on every winning bet.
6. Read the retirement rule. Confirm how your platform settles the bet if a player retires or withdraws.
7. Stake a fixed amount. Use your normal unit, for example 1% of your betting bankroll, and place a single bet rather than a parlay.
8. Record the bet. Log the price, stake, your reason and the result. After a few Slams, the log shows which kinds of reads actually win. For live follow-ups, our live tennis betting guide explains how prices move point by point.

Compare current US Open and tennis odds across betting platforms.