
James has worked for the jockey club and has 20 years sports betting experience he utilises his skills in our tipster competitions and writes sports betting content.
2025 US Open
The US Open gets underway on Monday 25th of August where Jannik Sinner will be looking to defend his title on the men's side having won his first US Open and also becoming the first-ever Italian winner of the men's US Open.
On the women's side of the tournament, Belarusian Aryna Sabalenka who lost the 2023 final to Coco Gauff went one better in 2024 landing her first US Open title when defeating Jessica Pegula in straight sets.
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.
In this blog we will be looking at some statistics for the tournament, we also have a 2025 US Open Preview blog packed full of information which you will find useful.
Additionally, if you are planning on having a bet at the US Open then make sure you get the most out of your bets with our Best Bookie for Tennis Betting guide.
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.

Wimbledon Betting Tips Preview, Trends & Analysis
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: 151-592 (25.51%)
- Women's 1st Round Underdog: 171-630 (27.14%)
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 2,146 completed matches covering the first three rounds for both ATP and WTA, the underdog has been successful 25% of the time (546).
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 38% in round 4.
On the ATP side of things, round 4 does fall in line with the previous numbers with a slight improvement of 30% of underdogs winning, it's the quarter-finals when the number jumps with 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 clearcut matches on the women's side.
A 2-0 win over the last ten years has occurred in 67% of the matches (842) whilst a 2-1 win has made up the other 33% of the matches (410) and the numbers are pretty consistent through the round too with no standout rounds.

Australian Open Tennis Preview, Stats & Analysis
On the men's side, a whitewash happens much less often with just 45% (541) 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 35% of them finishing with a 3-1 score (417) and the remaining 20% have been closer with 3-2 scores (232).
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.