Ever feel like you’re guessing when betting on tennis, cricket or golf? I make sense of the stats and trends so you can bet confidently and enjoy watching your bets play out.
2026 US Open
The US Open gets underway on Monday 24th of August, where Carlos Alcaraz will be looking to defend his title on the men's side, having won his second US Open in 2025, with his previous win coming in 2022.
On the women's side of the tournament, Aryna Sabalenka has now made the last three finals; she lost in 2023 but defeated Jessica Pegula in 2024 and successfully defended her title in 2025 when beating Amanda Anisimova.
2024 was the first year since 2002 that both finals featured homegrown players; unfortunately, both went on to lose. Pete Sampras (vs Agassi) and Serena Williams (vs Venus) both went on to win in 2002 in the all-American finals.
The Ultimate Guide to Tennis Betting Sites in the UK
In this blog, we will be looking at some statistics for the tournament. We also have a 2026 US Open Preview blog packed full of information, which you will find useful.
Below, we are going to look at how underdogs fare as the rounds go on, when it is worth backing them and which correct set scores appear most during the tournament.
Ace Your Bets: The Ultimate Guide to Tennis Betting for Beginners
Early Rounds Favs vs Dogs
How often does an underdog win in the early rounds of the US Open?
Whether you are looking at the men's half or the women's side, the number is pretty similar; it's roughly 1 in 4 underdogs win in the first round of the US Open.
- Men's 1st Round Underdog: 154-598 (25.75%)
- Women's 1st Round Underdog: 168-631 (26.62%)
The figures are pretty solid through both the second and third rounds, too, with the underdogs still around the 1 in 4 wins, overall from 2,150 completed matches covering the first three rounds for both ATP and WTA, the underdog has been successful 26% of the time (557).
Later Rounds Favs vs Dogs
When does the underdog record improve during the US Open?
Matches begin to get more closely matched as the tournament progresses. Round 4 on the WTA side of things, we see a significant improvement, from a 20% success rate in round 3, which improves to 39% in round 4.
On the ATP side of things, round 4 does fall in line with the previous numbers, with a slight improvement of 29% of underdogs winning. It's the quarter-finals when the number jumps to 43% of underdogs progressing to the next round.
US Open Correct Set Betting
What is the most common winning set score at the US Open?
This will differ on both sides, with the men's being best of five and the women's being best of three, and there does seem to be more clear-cut matches on the women's side.
A 2-0 win over the last ten years has occurred in 68% of the matches (848), whilst a 2-1 win has made up the other 32% of the matches (404), and the numbers are pretty consistent through the round too, with no standout rounds.
On the men's side, a whitewash happens much less often, with just 42% (507) of the wins being 3-0, with the final having the biggest percentage of matches finishing 3-0, with 50% of them.
The other matches have seen 33% of them finishing with a 3-1 score (400), and the remaining 24% have been closer with 3-2 scores (290).
ATP US Open Correct Scores by Round
WTA US Open Correct Scores by Round
Contributor Details
James's in-depth knowledge of tennis betting makes him a trusted authority in the world of tennis betting, and he produces and manages the tennis content on OLBG, including this for the US Open. Andy Powell is the man for collecting data to be used in blogs, including this one, and he maintains those in this article.
James Banting
Expert Guide
Content Editor
