| ATP Indian Wells | 03/03 00:45 | 14 |
[62] MPS/Atletico Malmi
v
Rei Sakamoto [159] 
|
6-4,7-6 | |
| Challenger New Delhi | 02/21 07:15 | 28 |
[215] Oliver Crawford
v
Rei Sakamoto [168]
|
6-4,6-3 | |
| Challenger New Delhi | 02/20 09:15 | 27 |
[225] Federico Cina
v
Rei Sakamoto [168]
|
7-6,3-6,2-6 | |
| Challenger New Delhi | 02/19 10:15 | 26 |
[408] Alastair Gray
v
Rei Sakamoto [168]
|
6-1,1-6,4-6 | |
| Challenger New Delhi | 02/17 10:40 | 25 |
[224] Frederico Ferreira Silva
v
Rei Sakamoto [168]
|
2-6,2-6 | |
| Challenger Brisbane | 02/14 06:05 | 28 |
[365] Zhizhen Zhang
v
Rei Sakamoto [174]
|
6-1,6-4 | |
| Challenger Brisbane | 02/13 08:30 | 27 |
[174] Rei Sakamoto v
Li Tu
[415] 
|
7-6,6-4 | |
| Challenger Brisbane | 02/12 00:00 | 26 |
Rei Sakamoto v
Colin Sinclair
|
7-5,6-3 | |
| Challenger Brisbane | 02/10 03:50 | 25 |
Rei Sakamoto v
Yuki Mochizuki
|
6-0,6-1 | |
| Challenger Brisbane | 02/06 05:20 | 27 |
[184] Rei Sakamoto v
Tristan Schoolkate
[114] 
|
3-6,4-6 | |
| Challenger Brisbane | 02/04 00:00 | 26 |
[184] Rei Sakamoto v
Taro Daniel
[400] 
|
7-6,6-2 | |
| Challenger Brisbane | 02/02 03:25 | 25 |
Rei Sakamoto v
Philip Sekulic
|
6-3,6-4 | |
| Australian Open | 01/20 05:05 | 23 |
[203] Rei Sakamoto v
Rafael Jodar
[150] |
6-7,1-6,7-5,6-4,3-6 | |
| Australian Open | 01/15 00:00 | 19 |
[156] Giulio Zeppieri
v
Rei Sakamoto [202]
|
2-6,2-6 | |
| Australian Open | 01/13 23:00 | 15 |
[202] Rei Sakamoto v
Colton Smith
[148] |
6-4,6-4 | |
| Australian Open | 01/12 04:50 | 14 |
[200] Rei Sakamoto v
Daniel Evans
[184] 
|
6-1,6-2 | |
| ATP Hong Kong | 01/06 05:30 | 25 |
[39] Lorenzo Sonego
v
Rei Sakamoto [200]
|
6-2,7-6 | |
| Challenger Yokohama | 11/23 03:00 | 29 |
[288] Kaichi Uchida
v
Rei Sakamoto [176]
|
6-4,6-7,4-6 | |
| Challenger Yokohama | 11/22 03:40 | 28 |
[348] Akira Santillan
v
Rei Sakamoto [176]
|
6-3,1-6,3-6 | |
| Challenger Yokohama | 11/21 02:00 | 27 |
[330] Yasutaka Uchiyama
v
Rei Sakamoto [176]
|
6-3,3-6,4-6 | |
| Challenger Yokohama | 11/19 01:00 | 26 |
[455] Maxim Zhukov
v
Rei Sakamoto [176]
|
1-6,2-6 | |
| Challenger Yokohama | 11/18 01:00 | 25 |
[414] Kasidit Samrej
v
Rei Sakamoto [176]
|
4-6,6-7 | |
| Challenger Kobe | 11/14 02:00 | 27 |
[131] Chun Hsin Tseng
v
Rei Sakamoto [180]
|
4-6,6-1,7-6 | |
| Challenger Kobe | 11/12 04:45 | 26 |
[296] Hynek Barton
v
Rei Sakamoto [180]
|
6-3,3-6,4-6 | |
| Challenger Kobe | 11/11 02:00 | 25 |
[416] Max Basing
v
Rei Sakamoto [180]
|
6-7,7-6,3-6 | |
| Challenger Bratislava | 10/26 09:00 | 14 |
Rei Sakamoto v
Michal Krajci
|
1-6,2-6 | |
| Challenger Brest | 10/20 16:00 | 25 |
[434] Mae Malige
v
Rei Sakamoto [177]
|
7-5,6-1 | |
| ATP Stockholm | 10/11 09:00 | 14 |
[188] Rei Sakamoto v
Mark Lajal
[146] 
|
1-6,4-6 | |
| ATP Shanghai | 10/02 11:40 | 23 |
[71] Matteo Arnaldi
v
Rei Sakamoto [188]
|
7-6,6-4 | |
| ATP Shanghai | 09/30 08:10 | 15 |
[96] Mackenzie McDonald
v
Rei Sakamoto [190]
|
4-6,3-6 |
Wikipedia - Rei Sakamoto
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 No. 159 achieved on 24 November 2025 and a doubles ranking of No. 752 reached on 9 February 2026. He is currently the No. 5 singles player from Japan.
Sakamoto has won three singles titles on ATP Challenger Tour. He represents Japan at the Davis Cup.
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