Chengdu 
Guadalajara 
Monastir 
Porto 2 
Davis Сup Group I Tennis. Played Sakamoto Rei. Season 2025
Country 
Japan. Ranking ATP 206.
Japan. Ranking ATP 206. ATP - US Open | ||||
|---|---|---|---|---|
| 21.08.2025 | Qualifications - 2nd round | Sakamoto Rei — Buse Ignacio | 1:2 (4:6, 6:4, 4:6) |
|
| 20.08.2025 | Qualifications - 1st round | Zink Tyler — Sakamoto Rei | 1:2 (6:4, 5:7, 6:7) |
|
| Lexington | ||||
| 01.08.2025 | Second round | Sakamoto Rei (Retired) — Spizzirri Eliot | 1:1 (6:7, 7:6, 3:4) |
|
| 29.07.2025 | First round | Ghibaudo Antoine — Sakamoto Rei | 1:2 (6:1, 4:6, 2:6) |
|
| Bloomfield Hills | ||||
| 22.07.2025 | First round | Spizzirri Eliot — Sakamoto Rei | 2:1 (3:6, 6:3, 6:4) |
|
 Winnipeg | ||||
| 10.07.2025 | Second round | Blockx Alexander — Sakamoto Rei | 2:0 (6:2, 7:5) |
|
| 10.07.2025 | First round | Nakagawa Naoki — Sakamoto Rei | 1:2 (6:7, 6:2, 3:6) |
|
| Cary | ||||
| 06.07.2025 | Final | Sakamoto Rei — Draxl Liam | 2:0 (6:1, 6:4) |
|
| 05.07.2025 | Semi-finals | Sakamoto Rei — Kypson Patrick | 2:0 (7:6, 7:6) |
|
| 04.07.2025 | Quarter-finals | Schoolkate Tristan — Sakamoto Rei | 0:2 (6:7, 4:6) |
|
| 03.07.2025 | Second round | Maloney Patrick — Sakamoto Rei | 1:2 (6:3, 1:6, 2:6) |
|
| 01.07.2025 | First round | Sakamoto Rei — Mejia Nicolas | 2:1 (6:7, 6:3, 6:3) |
|
 Sassuolo | ||||
| 18.06.2025 | First round | Sakamoto Rei — Meza Alvaro Guillen | 2:1 (1:6, 6:3, 7:6) |
|
| 18.06.2025 | Second round | Van Assche Luca — Sakamoto Rei | 2:0 (6:2, 6:3) |
|
| Perugia | ||||
| 10.06.2025 | First round | Sakamoto Rei — Lajovic Dusan | 0:2 (0:6, 4:6) |
|
 Heilbronn | ||||
| 03.06.2025 | First round | Onclin Gauthier — Sakamoto Rei | — — |
|
| 02.06.2025 | Qialification final | Sakamoto Rei — Rosenkranz Mats | 2:0 (7:6, 6:3) |
|
| 01.06.2025 | Qualifications - 1st round | Sakamoto Rei — Diez Steven | 2:1 (4:6, 6:0, 6:3) |
|
| Vicenza | ||||
| 25.05.2025 | Qualifications - 1st round | Klizan Martin — Sakamoto Rei | 2:0 (6:3, 6:3) |
|
 Gwangju Challenger | ||||
| 21.04.2025 | First round | Schoolkate Tristan — Sakamoto Rei | 2:0 (7:6, 7:5) |
|
| Busan Challenger | ||||
| 15.04.2025 | First round | Kubler Jason Murray — Sakamoto Rei | 2:0 (7:5, 6:4) |
|
| ATP - NASDAQ-100 | ||||
| 20.03.2025 | First round | Muller Alexandre — Sakamoto Rei | 2:0 (6:4, 6:4) |
|
| 18.03.2025 | Qialification final | Duckworth James — Sakamoto Rei | 0:2 (5:7, 6:7) |
|
| 17.03.2025 | Qualifications - 1st round | Sakamoto Rei — Majchrzak Kamil | 2:1 (6:4, 6:7, 6:2) |
|
 Cap Cana | ||||
| 14.03.2025 | Second round | Mensik Jakub — Sakamoto Rei | 2:0 (6:4, 6:2) |
|
| 12.03.2025 | First round | Sakamoto Rei — Nanda Govind | 2:0 (6:3, 6:4) |
|
| 11.03.2025 | Qialification final | Sakamoto Rei — Miedler Lucas | 2:0 (6:3, 7:6) |
|
 Lugano | ||||
| 25.02.2025 | First round | Sakamoto Rei — Draxl Liam | 0:2 (4:6, 4:6) |
|
| 24.02.2025 | Qialification final | Sakamoto Rei — Prado Angelo Juan Carlos | 2:0 (6:4, 7:6) |
|
| 23.02.2025 | Qualifications - 1st round | Sakamoto Rei — Yevseyev Denis (Retired) | 1:0 (6:3, 3:0) |
|
 Glasgow | ||||
| 17.02.2025 | First round | Monday Johannus — Sakamoto Rei | 2:0 (7:6, 6:4) |
|
 Tenerife 2 | ||||
| 10.02.2025 | Qialification final | Misolic Filip — Sakamoto Rei | 2:0 (6:4, 6:2) |
|
| Tenerife | ||||
| 04.02.2025 | First round | Hassan Benjamin — Sakamoto Rei | 2:1 (4:6, 6:2, 6:4) |
|