French Open Picks & Predictions for Sunday, May 31
By Sascha Paruk in Tennis
Published:
- Mensik holds a flawless 2-0 head-to-head advantage over Rublev
- Ruud’s elite 87.7% hold rate makes him a good bet against Fonseca
- See my top French Open picks and predictions for Sunday, May 31
The stakes are escalating on the Parisian clay as the 2026 French Open enters the crucial Round of 16 on the men’s side. Sunday’s five-match slate starts at 5:00 am ET (Flavio Cobolli vs Zachary Svajda) and concludes with the nightcap at 2:15 pm ET (Casper Ruud vs Joao Fonseca). The slate includes heavy favorites looking to secure quick straight-sets victories, and lively underdogs who can disrupt the established hierarchy.
I have isolated one high-value wager for every match on today’s slate, ensuring no heavily juiced odds artificially inflate the risk profile. The table below summarizes my five picks. Under the table, find my rationale for each pick, followed by the full slate of odds at the tail-end.
French Open Predictions & Picks for May 31
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Jakub Mensik vs Andrey Rublev Prediction
The Pick: Jakub Mensik Moneyline (48¢ at Kalshi)
Jakub Mensik boasts a 2-0 lifetime record against Andrey Rublev, having beaten the Russian in straight sets at both ATP Doha (6-4, 7-6) and ATP Shanghai (7-6, 6-4, 6-3). That stylistic ownership shatters the near-dead-heat implied probabilities this market presents (Mensik at 48%, Rublev at 53%).
Digging into their tournament paths, the underlying statistics are remarkably close: Mensik has won 52.0% of total points compared to Rublev’s 52.3%, while both players have produced nearly identical winner counts (110 vs 109) and aces (23 each). However, Mensik holds a meaningful edge in break-point conversion at 42.1% versus Rublev’s 39.0%. In a match projected to reach 37.5 total games, the player more capable of manufacturing breaks in tight moments holds the decisive advantage.
Rublev’s superior first-serve percentage (66.7% vs Mensik’s 53.1%) is notable, but it hasn’t translated to dominance over this specific opponent. Mensik’s fearless returning and his ability to neutralize Rublev’s forehand aggression have been proven in prior meetings. The Czech battled through a five-set thriller against Mariano Navone and then dispatched Alex de Minaur convincingly to reach this stage, demonstrating both grit and ceiling. Take the 48¢ price on a player who already owns the tactical high ground.
Flavio Cobolli vs Zachary Svajda Prediction
The Pick: Flavio Cobolli -7.5 Game Spread (49¢ at Kalshi)
When hunting for true statistical mismatches on the clay, this is my highest-rated angle of the slate. Flavio Cobolli has been ruthlessly efficient, storming into the Round of 16 without dropping a single set against Andrea Pellegrino, Yibing Wu, or Learner Tien. His underlying metrics are staggering: a 90.7% service hold percentage paired with an elite 48.4% break rate. He is dominating the points-won share at 56.8% alongside 23 aces.
Conversely, Zachary Svajda has logged incredibly heavy mileage. He scraped by in two grueling four-setters against Alexei Popyrin and Adam Walton, followed by a brutal five-set marathon against Francisco Cerundolo. Svajda’s fatigue is glaring in the data; he has leaked 206 unforced errors to just 139 winners, while his hold percentage sits at a vulnerable 79.2%. Converting breaks at only 43.8%, Svajda lacks the return game necessary to threaten Cobolli’s elite serve. My model pegs Cobolli at an 83.1% win probability, and the data overwhelmingly projects a blowout, making the -7.5 game line at 49¢ (+104) highly actionable.
Casper Ruud vs Joao Fonseca Prediction
The Pick: Casper Ruud Moneyline (58¢ at Kalshi)
This is the most fascinating tactical matchup on the slate, and while Joao Fonseca enters as a dangerous threat, the data ultimately favors Casper Ruud’s advancement. My analytical models project Ruud with a 58.2% statistical win probability, and the reasoning is anchored in service reliability.
Ruud has navigated a brutal draw – surviving five-set battles against Tommy Paul and Roman Safiullin alongside a dominant straight-sets win over Hamad Medjedovic – while maintaining an astonishing 87.7% hold rate and 73.8% first-serve accuracy. Those numbers represent an almost impenetrable service shield over a best-of-five format. Though his break-point conversion sits at a modest 31.7%, Ruud needs fewer breaks when he rarely drops serve himself.
Fonseca is undeniably electric. The teenager stunned Novak Djokovic in a remarkable five-set upset and has delivered a superior overall points-won percentage (53.2% vs Ruud’s 50.9%) and clinical 54.8% break-point conversion. However, his 79.4% hold rate exposes vulnerability. Fonseca’s high-wire game generates errors under sustained pressure. Ruud’s heavy topspin and systematic baseline discipline will drag rallies into deep waters, exploiting the younger player’s 102 unforced errors over three matches.
Rafael Jodar vs Pablo Carreno Busta Prediction
The Pick: Under 34.5 Total Games (47¢ at Kalshi)
Rather than blindly laying 81¢ on Jodar’s moneyline, the sharper play targets the total. The data supports compression in this match. This is a first-time meeting between two Spaniards with diametrically opposed styles – Jodar’s youthful aggression against Carreno Busta’s veteran tactical consistency – but the underlying break-point data points to Jodar running away with this.
Jodar has reached the Round of 16 through a pair of grueling five-setters against James Duckworth and Alex Michelsen, accumulating 224 winners (against 190 unforced errors) and converting break points at a blistering 48.2% clip. That aggression powers an elite 40.8% overall break rate. Carreno Busta, while more controlled (148 winners, 132 unforced errors) and tactically consistent following his upset of Jiří Lehečka, posts only a 29.0% break rate and 38.6% break-point conversion. Despite the veteran’s superior 79.6% hold percentage and 72.6% first-serve accuracy, he simply cannot generate enough return pressure to extend sets against Jodar’s firepower.
The model projects Jodar at an 80.2% win probability. With Jodar’s explosive break-point conversion overwhelming Carreno Busta’s return deficiencies, I expect efficient sets – broken service games going one direction – and a straight-sets or four-set victory that keeps the total comfortably under 34.5.
Jesper De Jong vs Alexander Zverev Prediction
The Pick: Alexander Zverev -8.5 Game Spread (40¢ at Kalshi)
Despite De Jong’s impressive tournament run – overcoming Stan Wawrinka and Karen Khachanov – the head-to-head and quality gap here are overwhelming. Zverev leads this matchup 2-0, including a 3-6, 6-1, 6-2, 6-3 demolition at last year’s French Open and a 6-2, 6-2 blitz at ATP Hamburg in 2024. After dropping the opening set in Paris last year, Zverev lost just seven games across three sets.
De Jong’s tournament statistics are genuinely impressive: a 75.4% hold rate, 63.0% break-point conversion, 55.1% overall points won, and 38 aces through three matches. However, those numbers were compiled against a lower caliber of opposition – not a player of Zverev’s magnitude. Zverev himself enters with a 57.1% points-won rate and has been relentlessly efficient in this draw, cruising past Benjamin Bonzi and Tomas Machac before a workmanlike four-set win over Quentin Halys.
My seasonal model assigns Zverev a 93.5% win probability, and the H2H pattern is unmistakable: once Zverev establishes his rhythm, De Jong collapses. Rather than backing the grossly overpriced 93¢ moneyline, the -8.5 spread at 40¢ offers outstanding value for what projects as a straightforward straight-sets dismissal.
French Open Men’s Singles Odds for Sunday, May 31
All odds and prices from Kalshi.
Early line movement tells a clear story. The Mensik-Rublev match has seen Mensik’s price firm up toward even money, suggesting sharp action recognizes the Czech’s head-to-head dominance. Additionally, the total in the Jodar-Carreno Busta match has compressed, indicating expectations of a more efficient Jodar victory. In the Zverev match, the Over 29.5 total holding at 59¢ reflects syndicates expecting a rapid, one-sided dismissal where games still accumulate through standard service holds.
Managing Editor
Sascha has been working in the sports-betting industry since 2014, and quickly paired his strong writing skills with a burgeoning knowledge of probability and statistics. He holds an undergraduate degree in linguistics and a Juris Doctor from the University of British Columbia.
