Mandatory Credit: Geoff Burke-Imagn Images

Jannik Sinner vs. Felix Auger-Aliassime Head-to-Head, Preview, Prediction and Betting Odds for US Open 2025 Semifinal

Sinner and Auger-Aliassime set for intense US Open semifinal battle

Mandatory Credit: Geoff Burke-Imagn Images

Top seed Jannik Sinner will face 25th seed Felix Auger-Aliassime in a high-stakes US Open 2025 semifinal. Sinner has yet to drop a set in the tournament, dispatching Vit Kopriva, Alexei Popyrin, 27th seed Denis Shapovalov, 23rd seed Alexander Bublik, and 10th seed Lorenzo Musetti with clinical efficiency. Auger-Aliassime, meanwhile, opened with straight-set wins over lucky loser Billy Harris and Roman Safiullin, then overcame third seed Alexander Zverev in a thrilling comeback before defeating 15th seed Andrey Rublev. In the quarterfinals, he edged past eighth seed Alex de Minaur in another tight contest.

Jannik Sinner's job is tennis.

And business is good. pic.twitter.com/gTU6rBZFDG
— US Open Tennis (@usopen) September 4, 2025

Sinner’s 2025 season has been exceptional so far. He captured Wimbledon and Melbourne titles and reached the final in every event he contested, though his campaign was interrupted by a three-month doping suspension following Melbourne. Statistically, he has been formidable, winning 79% of first-serve points, hitting 221 aces, and converting 43% of 322 break-point opportunities. His rare defeats have come exclusively at the hands of Carlos Alcaraz in Rome, Roland Garros, and Cincinnati, where he later withdrew due to illness.

Next stop: US Open semifinals 📍

Four years later, Felix Auger-Aliassime is back where he belongs. pic.twitter.com/PVysE7tOL5
— US Open Tennis (@usopen) September 3, 2025

Auger-Aliassime has also enjoyed a productive year, lifting titles in Adelaide and Open Occitanie and reaching the Dubai final. After a mid-season slump and missing Rome due to a lower-body injury, the Canadian returned strongly, advancing to semifinals in Doha, Hamburg, Stuttgart, and Mallorca. He has hit 476 aces, won 76% of first-serve points, and converted 32% of 369 break chances, while winning 30% of first-serve return points.

Jannik Sinner vs. Felix Auger-Aliassime Head-to-Head Record

Felix Auger-Aliassime holds a 2-1 lead over Jannik Sinner in their head-to-head. Their first clash came in Madrid 2022, followed by a second meeting in Cincinnati the same year, with Auger-Aliassime emerging victorious on both occasions. In 2024 Madrid, a highly anticipated rematch never materialized as Sinner withdrew due to a right hip issue. Most recently, the pair faced off in Cincinnati 2025, where Sinner finally struck back with a commanding straight-sets win.

Year	Event	Round	Winner	Score
2025	Cincinnati	Quarterfinal	Jannik Sinner	6-0, 6-2
2022	Cincinnati	Round of 16	Felix Auger-Aliassime	2-6, 7-6(1), 6-1
2022	Madrid	Round of 16	Felix Auger-Aliassime	6-1, 6-2

Jannik Sinner vs. Felix Auger-Aliassime Comparison

Jannik Sinner	Category	Felix Auger-Aliassime
1	Current Ranking	27
294-84	Career W-L	244-165
31-4	YTD W-L	29-18
20	Career Titles	7
4	Grand Slams	0
2	YTD Titles	2

Jannik Sinner vs. Felix Auger-Aliassime Prediction

Sinner’s power and precision will be tested by Auger-Aliassime’s tactical variety and court intelligence, making the semifinal a battle of wits as much as skill. Sinner holds the clear edge.

2025 has been pretty good for Jannik Sinner. pic.twitter.com/PpVh6I3N4r
— US Open Tennis (@usopen) September 4, 2025

Prediction: Jannik Sinner in straight sets

Jannik Sinner vs. Felix Auger-Aliassime US Open 2025 Betting Odds

Jannik Sinner (1/40) is heavily favored to win in straight sets, reflecting his flawless form and dominance throughout the 2025 US Open. Felix Auger-Aliassime (14/1) could push Sinner to the limit, using his resilience and comeback ability to challenge the top seed.

Here are the betting odds according to BetMGM:

Jannik Sinner: 1/40

Felix Auger-Aliassime: 14/1

Here are the odds for total games as well as total sets for both players (sourced via BetMGM):

Total Sets Under 3.5: 11/25

Total Sets Over 3.5: 37/20

Overall Games Under 33.5: 13/25

Overall Games Over 33.5: 31/20

Sinner Set 1 Winner: 2/15

Auger-Aliassime Set 1 Winner: 5/1

(According to BetMGM: BetMGM offers exclusive promo codes, bonus deals and accurate odds for users upon signing up. Use BetMGM to ace your betting game in all sports!)

Mandatory Image Credit: Geoff Burke-Imagn Images

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I’m an academic turned sports writer from Raipur, India, specializing in the NFL, MMA, and tennis at The Playoffs. I previously wrote for Sportskeeda and hold a B.A. and M.A. in History. My journey into sports media began far from the field, rooted in the arts and sciences. Funny enough, I didn’t grow up a sports fan; I used to see it all as just noise. But a fateful writing job introduced me to the world of sports, and what began as a gig quickly became a passion. I understood those voices aren’t noise; they’re emotions of true sports fans, and now I am one of them, writing with the same energy I once questioned.