Kei Nishikori retired from professional tennis after losing his first-round match at the Japan Open on 1 October 2026. The former world No. 4 announced the decision on 30 April 2026, citing repeated injuries to his hip, wrist, back, shoulder and knees. He retired as Asia’s most successful male singles player.
Why Did Kei Nishikori Retire?
Nishikori retired because years of injuries had left him unable to compete at tour level. In the social media post announcing the decision on 30 April 2026, he said there were times he was overwhelmed by frustration and anxiety because repeated injuries stopped him playing as he wanted.
The decisive problem was his left hip. He stopped playing ATP Tour matches in late 2021 and underwent arthroscopic hip surgery in early 2022, in which surgeons shaved bone from the joint and repaired a tear in the labrum.
That operation began an absence of 20 months. An ankle injury picked up in practice in late 2022 pushed his comeback back by a further four to five months, and knee and shoulder trouble followed once he did return.
He has said he came close to quitting more than once in those years. Speaking in 2025, he described himself as barely hanging on physically. His retirement statement added that he still wished he could continue playing.
The Injury Timeline
| Date | Development |
|---|---|
| Late 2021 | Plays his last ATP Tour match before surgery |
| Early 2022 | Arthroscopic surgery on his left hip, including a labrum repair |
| Late 2022 | Ankle injury in practice delays his comeback by four to five months |
| June 2023 | Returns after 20 months and wins the Palmas del Mar Challenger in Puerto Rico |
| 1 January 2025 | Beats third seed Karen Khachanov in Hong Kong and goes on to his first ATP final in six years |
| 30 April 2026 | Announces he will retire at the end of the season |
| 1 October 2026 | Loses to Frances Tiafoe at the Japan Open in his final match |
From No. 4 to No. 464: How Far His Ranking Fell
Nishikori was ranked No. 464 in the world when he announced his retirement, 460 places below his career peak. He had reached No. 4 on 2 March 2015, the highest ranking any Asian man has held.
The drop was not gradual. Hip surgery in early 2022 cost him every ranking point he held, and he fell off the ATP rankings list altogether, only the second time that had happened to him.
His comeback was unusual for that reason. He entered the Palmas del Mar Challenger in Puerto Rico in June 2023 unranked, on a wild card, and won the title, becoming the first unranked player since 2000 to take a Challenger trophy.
He did climb back. A run to the Hong Kong final in January 2025, beating third seed Karen Khachanov 4-6, 6-3, 7-5 on the way, carried him into the top 100 and gave him his first ATP Tour final in six years. He lost that final to Alexandre Muller 2-6, 6-1, 6-3.
Few former top-five players have fallen that far. The late-career decline of Serena Williams followed a comparable pattern of injury layoffs and sparse match play.
He Had Already Left the Main Tour
By 2026 Nishikori was no longer playing ATP Tour events at all. His entire final season was spent on the second-tier ATP Challenger Tour, with a ranking too low to enter the biggest tournaments.
That is the part most retirement coverage skips. For anyone who lost track of him around 2021, the answer to what happened is not that he retired in 2026. It is that he left the main tour five years earlier and never fully came back.
His appearance at the Japan Open was possible only because organisers granted him a wild card, the same route that had taken him into the Hong Kong draw in 2025.
What Happened in His Final Match?
Nishikori lost 6-4, 6-4 to Frances Tiafoe, the second seed, in the first round of the Japan Open at Ariake Coliseum in Tokyo on 1 October 2026.
The crowd rose to applaud him off the court. Organisers played a video tribute to his two-decade career, with messages from players including Novak Djokovic, who recalled the great battles the pair had at the Grand Slams and at tournaments around the world.
Carlos Alcaraz said he counted himself a fan. Grigor Dimitrov, Alex de Minaur and Andy Murray singled out his two-handed backhand, and Stefanos Tsitsipas paid tribute on social media.
The venue was his own choice. He had won the Tokyo title twice, in 2012 and 2014. Speaking of the occasion, he said he was excited to play in Japan but knew it was his last moment, which made it sad.
What Nishikori Achieved Before the Injuries
Nishikori won 12 ATP Tour singles titles and reached 15 further finals, four of them at Masters 1000 level. He passed 450 tour-level match wins, the first Asian player to do so.
His best result came at the 2014 US Open, where he beat Novak Djokovic in four sets in the semi-finals to become the first Asian man to reach a Grand Slam singles final. He lost the title match to Marin Cilic.
At the 2016 Rio Olympics he beat Rafael Nadal 6-2, 6-7(1), 6-3 in the bronze medal match. It was Japan’s first Olympic tennis medal since 1920, when Ichiya Kumagae won silver.
He also qualified for the season-ending ATP Finals four times between 2014 and 2018, reaching the semi-finals in 2014 and 2016. In 2014 he became the first Asian man to qualify for the event, and his best season brought four titles and a 54-14 record.
Where Is Kei Nishikori Now?
As of 26 October 2026, Nishikori is retired and has announced no plans to return to competition. His last competitive match remains the 1 October loss in Tokyo.
He has made no public statement about what he will do next. There is no verified announcement of a coaching role, an academy, an exhibition schedule or a front-office job.
Frequently Asked Questions
Did Kei Nishikori Ever Win a Grand Slam Title?
No. He reached one Grand Slam singles final, the 2014 US Open, and lost it to Marin Cilic. He was the first Asian man to reach a men’s singles final at a major.
How Old Is Kei Nishikori?
He was born on 29 December 1989, which made him 36 when he played his final match in October 2026.
How Many ATP Titles Did Kei Nishikori Win?
Twelve singles titles, including the Tokyo event in 2012 and 2014. He also lost 15 other finals, four of them at Masters 1000 level.
Is Kei Nishikori Coming Out of Retirement?
There is no sign that he is. He has made no public statement about returning since his final match on 1 October 2026.
