Rei Sakamoto| Country (sports) |  Japan |
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| Born | (2006-06-24) 24 June 2006
Nagoya, Japan |
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| Height | 1.93 m (6 ft 4 in) |
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| Plays | Right-handed (two-handed backhand) |
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| Prize money | US $143,372 |
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|
| Career record | 0–1 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
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| Career titles | 0 |
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| Highest ranking | No. 200 (4 August 2025) |
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| Current ranking | No. 200 (18 August 2025) |
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|
| Australian Open | Q1 (2025) |
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| US Open | Q2 (2025) |
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| Career record | 0–2 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
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| Career titles | 0 |
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| Highest ranking | No. 772 (5 May 2025) |
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| Current ranking | No. 855 (28 July 2025) |
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| Last updated on: 15 August 2025. |
Rei Sakamoto (坂本怜, Sakamoto Rei; born 24 June 2006) is a Japanese professional tennis player.
He has a career-high ATP singles ranking of world No. 200, achieved on 4 August 2025 and a doubles ranking of No. 772, achieved on 5 May 2025.[1]
Career
2024: Australian Junior champion, ATP qualifying & top 500 debuts
Sakamoto won the 2024 Australian Open boys' singles title after defeating Jan Kumstát in three sets.[2][3] Partnering Maxim Mrva, he also won the boys' doubles at the 2024 US Open, defeating Denis Peták and Flynn Thomas in the final.[4]
He received a wildcard for qualifying competition at the 2024 Miami Open but lost to Vít Kopřiva in the first round.[5]
At the age of 18 and five months, Sakamoto won his first title at the 2024 Yokkaichi Challenger becoming the second youngest Japanese titlist after Kei Nishikori to lift an ATP Challenger trophy in history. As a result he reached the top 500 in the rankings on 2 December 2024.[6][7]
2025: Major qualifying, Masters and top 200 debuts
Sakamoto received a wildcard for the qualifying competition at the 2025 Australian Open.[8]
Sakamoto made his Masters main draw debut at the 2025 Miami Open as a qualifier but lost to Alexandre Müller.[9]
He won his second Challenger title at 2025 Cary Tennis Classic and reached new career-high ranking of world No. 206 on 14 July 2025, rising 85 positions up in the singles rankings.[10]
Key
| W
|
F
|
SF
|
QF
|
#R
|
RR |
Q#
|
DNQ
|
A
|
NH
|
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
Singles
ATP Challenger Tour finals
Singles: 2 (2 titles)
| Legend
|
| ATP Challenger Tour (2–0)
|
|
|
ITF World Tennis Tour finals
Doubles: 2 (1 title, 1 runner-up)
| Result
|
W–L
|
Date
|
Tournament
|
Tier
|
Surface
|
Partner
|
Opponents
|
Score
|
| Win
|
1–0
|
Feb 2024
|
M15 Sharm El Sheikh, Egypt
|
WTT
|
Hard
|
 Jan Hrazdil
|
 Emile Hudd
David Stevenson
|
6–3, 6–7(8–10), [11–9]
|
| Loss
|
1–1
|
May 2024
|
M15 Cervia, Italy
|
WTT
|
Clay
|
 Federico Bondioli
|
Gianluca Cadenasso
Jacopo Bilardo
|
walkover
|
Junior Grand Slam finals
Singles: 1 (title)
Doubles: 2 (1 title, 1 runner-up)
References
External links
Christoph Negritu
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Liam Draxl
Nicolai Budkov Kjær 
Joel Schwärzler
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Flynn Thomas
