May 25, 2025; Paris, FR; Reilly Opelka of the United States tosses the ball to serve during his match against Rinky Hijikata of Australia on day one at Roland Garros Stadium.

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Reilly Opelka vs. Zizou Bergs Head to Head, Prediction and Betting Odds for ATP Libema Open 2025 Semifinal

All you need to know about the final four encounter.

May 25, 2025; Paris, FR; Reilly Opelka of the United States tosses the ball to serve during his match against Rinky Hijikata of Australia on day one at Roland Garros Stadium.

After winning their respective quarterfinal encounters in two tiebreak sets, Reilly Opelka and Zizou Bergs will renew their freshly brewing rivalry on Saturday. The duo will meet in the semifinals of the ATP-250 event in ‘s-Hertogenbosch, Netherlands to determine who faces either No. 2 seed Ugo Humbert or Canadian star Gabriel Diallo in the summit clash on Sunday.

After bowing out in the second round of qualifying, Reilly Opelka entered the Libema Open draw as a lucky loser. He edged past Jesper de Jong in a challenging Round of 32, before defeating the powerful Nicolas Jarry. In the QF stage, the 6’11” giant upset top seed Daniil Medvedev to become just the second lucky loser to reach the final four at this event.

Meanwhile, Belgian sensation Zizou Bergs can’t seem to catch a break. He had to pull off three consecutive marathon victories to complete an entry into the final four – ensuring that his country has representation in both men’s and women’s singles (Elise Mertens) semifinals this week. His most prominent win was against No. 4 seed Alexei Popyrin of Australia in the Round of 16.

Reilly Opelka vs Zizou Bergs Head to Head Record

The head to head record between the two players is 1-0 in favour of Zizou Bergs.

The Rosmalen event will play host to the first Opelka-Bergs duel in 2025. Their only other match-up was at Winston-Salem last year, where the Belgian dominated a deciding set tiebreak to edge out a thrilling win. They are yet to stand across the net on grass.

Event	Round	Winner	Score
2024 Winston-Salem	Round of 64	Zizou Bergs	6-4 3-6 7-6(1)

Reilly Opelka vs Zizou Bergs Career Comparison

Reilly Opelka	Category	Zizou Bergs
0	Grand Slams	0
4	ATP Singles Titles	0
1	ATP Doubles Titles	0
0	Masters-1000 Titles	0
–	Olympics Best Performance	R1 (Paris 2024)
No. 87	Current World Ranking	No. 63

Reilly Opelka vs Zizou Bergs ATP Libema Open 2025 Prediction

Opelka served up 24 aces on a platter against Medvedev – his most in a best of three sets match this year. If there are sunny conditions in the Dutch region on Saturday, there will be more variable speed and bounce which will aid the American. Provided he can hang in during baseline exchanges, the 27-year-old can be expected to enter the championship battle.

Prediction: Reilly Opelka in three sets.

SERVEBOT STATS 😳🦾

Reilly Opelka against Medvedev today…24 aces in 12 service games, 0 double faults and 72% first serves in 🔥 pic.twitter.com/fwpFqkaMqp
— Tennis Channel (@TennisChannel) June 13, 2025

Reilly Opelka vs Zizou Bergs ATP Libema Open 2025 Betting Odds

Here are the betting odds for the weekend clash, where Opelka has a slight edge over Bergs as per the market:

Reilly Opelka Win: -160

Zizou Bergs Win: +125

(According to BetMGM)

ATP

Betting

Daniil Medvedev

Libema Open

Reilly Opelka

Tennis

Wimbledon

Zizou Bergs

Sankalp Harikrishnan

A passionate sports fan through and through, I am currently pursuing my MA in Global Sports Journalism. I specialise in tennis and football writing at The Playoffs News, and I have prior experience working at EssentiallySports and Sportskeeda. Born and raised in Bengaluru, India, sport was my safe space right from my childhood. After trying my hand at multiple sports and representing my educational institutions in cricket, badminton and table tennis, I found sports media to be my calling.