Ugo Humbert vs. Gabriel Diallo Preview, Prediction and Betting Odds for 2025 Libema Open Semifinals 

Power-serving Humbert eyes edge over fearless upstart Diallo.

Mandatory Credit: Eric Bolte-USA TODAY Sports

Second seed Ugo Humbert will square off against Gabriel Diallo for the first time in their careers today at the Libema Open in ‘s-Hertogenbosch, Netherlands. A finalist here last year, Humbert earned a first-round bye and has looked sharp so far, breezing past qualifier Daniel Evans before dispatching seventh seed Nuno Borges with ease.

Diallo, on the other hand, has taken a rockier path to this stage. The Canadian began with a gritty straight-sets win over Aleksandar Vukic, sealing the second set in a tense tiebreak. He then mounted a comeback to upset sixth seed Jordan Thompson. And followed it up with another strong performance, this time taking down third seed Karen Khachanov in straight sets.

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Ugo Humbert vs. Gabriel Diallo Preview

Humbert’s season has been inconsistent. After a fourth-round run in Melbourne and a title win in Marseille over Hamad Medjedovic, he hasn’t gone past the round of 16, his best showings coming in Dubai and Munich. He also withdrew from Doha due to minor injuries and fatigue. Stat-wise, the Frenchman has hit 161 aces, winning 74% on first serve and 28% on first-serve returns, while converting 34% of 160 break points.

Diallo, on the rise, broke into the Top 60 in May after a Madrid quarterfinal run that included wins over Cameron Norrie and Grigor Dimitrov. He was stopped by Lorenzo Musetti in straight sets. He hasn’t gone beyond the round of 32 elsewhere, except for a last-16 finish in Bucharest. The Canadian has fired 41 aces, winning 69% on first serve, 22% on return, and converting 45% of 22 break points.

BIG WIN ALERT 😍

Gabriel Diallo 🇨🇦 delivers a statement win over Karen Khachanov and is now into the semifinals of the Libema Open 💪

He faces second seed Ugo Humbert 🇫🇷@nationalbank pic.twitter.com/Om34QoT9VA

— Tennis Canada (@TennisCanada) June 13, 2025

Ugo Humbert vs. Gabriel Diallo Head-to-Head Record

Ugo Humbert and Gabriel Diallo do not have a head-to-head yet. 

Ugo Humbert vs. Gabriel Diallo Comparison 

Ugo Humbert CategoryGabriel Diallo20Ranking55156-135Career W-L22-2613-10YTD W-L11-117Career Titles00Grand Slams01YTD Titles0

Ugo Humbert vs. Gabriel Diallo Prediction

While Diallo’s recent wins and rise in the rankings signal he’s a player to watch, Humbert’s experience, sharper serving stats, and comfort on grass give him the edge. The Frenchman has navigated this stage before and seems to be finding form again in ‘s-Hertogenbosch.

Prediction: Ugo Humbert in straight sets

Ugo Humbert vs. Gabriel Diallo Libema Open 2025 Betting Odds

At 1/2, Humbert enters as a justifiable favorite, backed by a stronger season resume, better serve metrics, and prior success on this surface. Diallo, priced at 31/20, presents value as a rising threat, but the numbers still tilt toward the second seed’s consistency and firepower. 

Here are the betting odds according to BetMGM: 

Ugo Humbert: 1/2

Gabriel Diallo:  31/20

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