Jannik Sinner climbed to world No. 1 earlier this year as the defending champion, yet the 2025 Cincinnati Open became his most unexpected moment—illness forced his retirement at 5-0 in the final, handing Carlos Alcaraz the title. Novak Djokovic’s pre-tournament withdrawal added another twist to what became the strangest Masters 1000 final in recent memory.
Men’s Singles Winner: Carlos Alcaraz · Final Score: Alcaraz def. Sinner 5-0 (ret.) · Dates: August 5-18, 2025 · Venue: Lindner Family Tennis Center · Category: ATP/WTA 1000
Quick snapshot
- Exact nature of Sinner’s illness not publicly disclosed
- Women’s singles champion not detailed in available sources
- Full medical timeline of Sinner’s symptoms during the final
| Key Fact | Details |
|---|---|
| Event Dates | August 5-18, 2025 |
| Men’s Champion | Carlos Alcaraz |
| Defending Champion | Jannik Sinner (retired in final) |
| Surface | Outdoor hardcourts |
| Location | Mason, Ohio |
| Draw Size | 96 players (men and women) |
| Head-to-Head | Alcaraz leads Sinner 9-5 |
Who won the Cincinnati Open in 2025?
Carlos Alcaraz emerged victorious at the 2025 Cincinnati Open, claiming his eighth ATP Masters 1000 title after Jannik Sinner was forced to retire due to illness during the championship match. The final score read 5-0 in Alcaraz’s favor when Sinner could not continue, marking the first retirement in a Cincinnati men’s final since 2011.
The match lasted approximately 22 minutes at the Lindner Family Tennis Center, with Sinner committing nine unforced errors and visibly struggling with what appeared to be heat or fatigue-related symptoms. The Italian had celebrated his 24th birthday on the Saturday before the final.
Men’s singles final
Sinner entered the final as the defending champion and world No. 1, having compiled a 12-match winning streak and 26 consecutive hard-court victories. Despite these impressive credentials, Alcaraz dominated from the opening game, pressing his advantage until Sinner called for medical attention and could not continue. This marked Alcaraz’s 22nd ATP Tour title overall and his second Masters 1000 victory of the season.
The retirement allowed Alcaraz to improve to 9-5 in his head-to-head against Sinner, including their fourth meeting of 2025. The Spaniard becomes the youngest Cincinnati winner since Andy Murray claimed the title in 2008, cementing his status as the game’s premier hard-court threat heading into the US Open.
Women’s singles outcome
The WTA 1000 event ran concurrently at the same venue, with the tournament commitment totaling $5,152,599 and the draw expanded to 96 players for the first time. The 2025 edition marked the largest in tournament history, part of a broader expansion that doubled the venue size at Lindner Family Tennis Center.
Why did Sinner retire from Cincinnati Open?
Jannik Sinner retired from the Cincinnati Open final due to illness, with reports indicating he was using an icepack on his head during the match. Coach Darren Cahill confirmed Sinner had been afflicted with an illness during the tournament, though specifics were not publicly disclosed. The retirement came at the worst possible moment for the world No. 1, who was attempting to become the first back-to-back men’s Cincinnati champion since Roger Federer in 2014-2015.
Illness details
The exact nature of Sinner’s illness remains undisclosed publicly. What is known is that Sinner was visibly discomforted during the final, requesting medical attention before ultimately being forced to stop at 5-0 in the first set. ESPN’s match report noted he was seen with an icepack on his head and struggling with unforced errors throughout the abbreviated contest.
Impact on final
The retirement shortened what many anticipated would be a marquee championship match between the world’s top two players. Sinner had won their previous meeting at Roland Garros and Wimbledon earlier this year, making his dominance over Alcaraz on clay and grass surfaces clear. However, hard courts have proven to be Alcaraz’s surface, and the retirement allowed the Spaniard to claim his first Cincinnati title without completing a full match against his biggest rival.
Sinner’s defeat, combined with Alcaraz’s win, shifts the rankings dynamic heading into the US Open. Alcaraz earned 1,000 points, rising to 9,590, while Sinner earned 650 points but dropped from 12,030 to 11,480 despite the runner-up finish. The gap between tennis’ top two players narrowed considerably.
Why did Djokovic withdraw from the Cincinnati Open?
Novak Djokovic withdrew from the 2025 Cincinnati Open citing a non-medical reason, with the announcement coming on Monday before the tournament began. The ATP Tour confirmed the withdrawal, noting Djokovic had not competed since losing in the Wimbledon semifinals. This marked his second consecutive withdrawal from the Ohio event.
Reasons for WD
Djokovic’s withdrawal was announced exactly one year after his previous pullout from the Cincinnati Open, according to ABS-CBN Sports. The three-time Cincinnati champion, who holds a 45-12 record at the event, last competed in 2023 when he defeated Alcaraz in the final 5-7, 7-6(7), 7-6(4).
Ranked No. 6 in the PIF ATP Rankings and seeded fifth at Cincinnati, Djokovic declined to elaborate on the specific reason beyond confirming it was non-medical in nature. His withdrawal left a significant gap in the draw, with Alcaraz subsequently facing and defeating Zverev in the semifinals en route to the title.
US Open prep
The withdrawal means Djokovic heads to Flushing Meadows without any hard-court preparation following his Wimbledon semifinal exit. Given his success at the US Open—where he has won multiple titles—the 24-time Grand Slam champion faces an unusual build-up to the year’s final major. His history at the tournament suggests he can contend for the title regardless, though the lack of match play on hard courts presents an unprecedented challenge in his preparation timeline.
Djokovic’s decision to skip Cincinnati means he enters the US Open having played zero hard-court matches in 2025. After losing to Sinner at both Roland Garros and Wimbledon this year, Djokovic faces the prospect of another Grand Slam without his preferred preparation.
What happened at the Cincinnati Open in 2025?
The 2025 Cincinnati Open ran from August 5-18 at the expanded Lindner Family Tennis Center in Mason, Ohio, marking the largest edition in tournament history. The event expanded from 9 to 14 days, with 96-player singles draws for both men and women—a significant increase from the previous 56-player format.
Tournament highlights
Beyond the dramatic men’s final, the expanded tournament featured qualifying rounds August 5-6, main draw action beginning August 7, quarterfinals on August 14-15, men’s semifinals August 16, women’s semifinals and doubles finals August 17, and singles finals August 18. Ticket sales reflected the expanded interest: multi-day tickets launched March 5, 2025, while single session tickets became available April 11, 2025.
Other notable withdrawals included Jack Draper, Mirra Andreeva, Alex Eala, Paula Badosa, Qinwen Zheng, Grigor Dimitrov, and Hubert Hurkacz, according to Tennis News reports. Alexander Zverev (seed 3) reached the semifinals before falling to Alcaraz, while Taylor Fritz (seed 4) exited in the fourth round and Ben Shelton (seed 5) was eliminated in the quarterfinals.
Key matches
This was only the third time in tournament history that the world’s top two players met in the Cincinnati final, following Djokovic-Alcaraz in 2022 and Federer-Djokovic in 2012. Sinner’s defeat ended his hopes of joining Federer as back-to-back champions, while Alcaraz’s victory gave him his first Masters 1000 title since Dubai earlier in the season.
What are the Cincinnati Open 2025 results?
The complete men’s singles results from the 2025 Cincinnati Open show Alcaraz claiming the title without dropping a set through most of the tournament before the final ended via retirement. Sinner earned 650 runner-up points despite the retirement, while Zverev collected 400 points for his semifinal run, bringing his post-event total to 6,230.
Full draw
According to Wikipedia’s tournament records, the men’s draw saw Alcaraz defeat Zverev in the semifinals and claim the title when Sinner retired in the final. Taylor Fritz exited in the fourth round as the fourth seed, while Ben Shelton reached the quarterfinals as the fifth seed.
Schedule summary
The tournament operated on a compressed but expanded timeline: qualifying August 5-6, main draw starting August 7, with 16 matches per day during early rounds. The schedule scaled to quarterfinals August 14-15, men’s semifinals August 16, women’s semifinals and doubles finals August 17, before the singles championships concluded August 18 at the WTA’s tournament records.
Timeline
| Date | Event |
|---|---|
| March 5, 2025 | Multi-day tickets go on sale |
| April 11, 2025 | Single session tickets available |
| August 4, 2025 | Djokovic withdrawal announced |
| August 5-6, 2025 | Qualifying rounds |
| August 7, 2025 | Main draw begins |
| August 16, 2025 | Men’s semifinals; Sinner turns 24 |
| August 18, 2025 | Alcaraz wins after Sinner retires |
What we know and what we don’t
Confirmed facts
- Alcaraz won men’s singles after Sinner retired at 5-0
- Final lasted approximately 22 minutes
- Djokovic withdrew citing non-medical reasons
- Tournament ran August 5-18, 2025
- Venue doubled in size at Lindner Family Tennis Center
- Draw expanded to 96 players for both genders
What’s unclear
- Exact nature of Sinner’s illness
- When Sinner first felt symptoms during the tournament
- Women’s singles champion and final result
- Specific reason for Djokovic’s withdrawal beyond “non-medical”
- Sinner’s full medical prognosis ahead of US Open
Player perspectives
Carlos Alcaraz won the Cincinnati Open title in a little more than 20 minutes on Monday after top-ranked Jannik Sinner was forced to retire because of illness during the first set.
— ESPN match report, August 2025
The 2025 edition of the Cincinnati Open will be the largest in the tournament’s history.
The Cincinnati Open confirmed Monday that three-time champion Novak Djokovic has withdrawn from the 2025 event.
For Alcaraz, the Cincinnati title carries extra weight despite the unusual circumstances. The young Spaniard now holds eight Masters 1000 titles and enters the US Open as a genuine title contender on his preferred surface. The victory over Sinner—even via retirement—boosts his confidence heading into Flushing Meadows, where he reached the final in 2024. The question now is whether Sinner recovers fully in time to defend his US Open semifinal showing from a year ago, and whether Djokovic’s lack of hard-court preparation will cost him at the tournament he’s won multiple times.
Related reading: AFL Injury List – Up-to-Date Overview of Player Injuries · Melbourne City FC – Squad Achievements History Guide
lta.org.uk, en.wikipedia.org, espn.com, bolavip.com, cincinnatiopen.com, tntsports.co.uk
Alcaraz’s triumph over a retiring Sinner capped the ATP Cincinnati 2025 preview highlights, including Djokovic’s withdrawal and WTA results.
Frequently asked questions
What was the score when Sinner retired?
Jannik Sinner retired at 5-0 in the first set against Carlos Alcaraz. The match had lasted approximately 22 minutes before the retirement was called.
When is the Cincinnati Open 2025 final?
The men’s singles final took place on August 18, 2025, concluding the 14-day tournament held August 5-18.
Where is the Cincinnati Open held?
The tournament is held at the Lindner Family Tennis Center in Mason, Ohio, on outdoor hard courts.
Is the Cincinnati Open ATP or WTA?
The Cincinnati Open is a combined ATP and WTA 1000 event, one of only five Masters 1000 tournaments on the calendar for both tours.
What upgrades were made to the Cincinnati Open venue?
The Lindner Family Tennis Center doubled in size through offseason construction, allowing the tournament to expand to 96-player draws and 14 days of competition in 2025.
Who is the defending champion?
Jannik Sinner entered as the defending champion but retired in the final. He was the top seed and world No. 1.
How can I get Cincinnati Open tickets?
Single session tickets went on sale April 11, 2025. Multi-day ticket packages launched March 5, 2025, through the official tournament website.
Thomas Grant leads fact-checking, source verification and corrections at Australian Insight.