Adelaide 1 
Auckland 
Next Gen ATP Finals 
Nottingham 1 
Bengalaru 
Nonthaburi 1 
Davis Сup Group I Tennis. Played Nishikori Kei. Season 2025
Country 
Japan. Ranking ATP 159.
Japan. Ranking ATP 159.| Yokohama | ||||
|---|---|---|---|---|
| 21.11.2025 | Quarter-finals | Nishikori Kei — Uchida Kaichi | 0:2 (2:6, 2:6) |
|
| 20.11.2025 | Second round | Nishikori Kei — Shin Sanhui | 2:0 (6:4, 6:1) |
|
 ATP - Western & Southern Financial Group Masters | ||||
| 08.08.2025 | First round | Carabelli Camilo Ugo — Nishikori Kei | 2:0 (7:5, 6:3) |
|
 ATP - French Open | ||||
| 25.05.2025 | First round | Nishikori Kei — Alcaraz Carlos | — — |
|
 ATP - Geneva Open | ||||
| 21.05.2025 | Second round | Khachanov Karen — Nishikori Kei (Retired) | 1:0 (7:5, 2:5) |
|
| 19.05.2025 | First round | Nishikori Kei — Tien Learner | 2:1 (4:6, 6:4, 6:4) |
|
 ATP - Masters Series Madrid | ||||
| 26.04.2025 | Second round | Nishikori Kei — Shapovalov Denis | 0:2 (1:6, 4:6) |
|
| 24.04.2025 | First round | Vukic Aleksandar — Nishikori Kei | 1:2 (4:6, 6:3, 3:6) |
|
| ATP - US Men's Clay Court Championships | ||||
| 03.04.2025 | Second round | Eubanks Christopher — Nishikori Kei (Retired) | 1:0 (6:1) |
|
| 02.04.2025 | First round | Nishikori Kei — Krueger Mitchell | 2:0 (6:4, 6:2) |
|
| ATP - NASDAQ-100 | ||||
| 20.03.2025 | First round | Nishikori Kei — Nishioka Yoshihito | — — |
|
| Phoenix | ||||
| 16.03.2025 | Semi-finals | Fonseca Joao — Nishikori Kei | 2:0 (6:3, 6:3) |
|
| 15.03.2025 | Quarter-finals | Nishikori Kei — Cobolli Flavio | 2:1 (6:2, 4:6, 6:4) |
|
| 13.03.2025 | First round | Nishikori Kei — Nardi Luca | 2:0 (6:4, 6:3) |
|
| 13.03.2025 | Second round | Nishikori Kei — Kukushkin Mikhail (Retired) | 1:0 (6:3, 2:1) |
|
| ATP - Pacific Life Open | ||||
| 07.03.2025 | Second round | Nishikori Kei — Humbert Ugo | 0:2 (4:6, 3:6) |
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| 05.03.2025 | First round | Munar Clar Jaume Antoni — Nishikori Kei | 1:2 (2:6, 7:5, 6:7) |
|
| ATP - Delray Beach International Tennis Championships | ||||
| 12.02.2025 | First round | Nishikori Kei — Mcdonald Mackenzie | 1:2 (6:7, 6:4, 5:7) |
|
| ATP - Dallas | ||||
| 05.02.2025 | First round | Nishikori Kei — Machac Tomas | 0:2 (2:6, 2:6) |
|
 ATP - Hong Kong | ||||
| 05.01.2025 | Final | Nishikori Kei — Muller Alexandre | 1:2 (6:2, 1:6, 3:6) |
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| 04.01.2025 | Semi-finals | Shang Juncheng (Retired) — Nishikori Kei | 0:0 (3:4) |
|
| 03.01.2025 | Quarter-finals | Nishikori Kei — Norrie Cameron | 2:1 (6:3, 3:6, 6:2) |
|
| 01.01.2025 | Second round | Khachanov Karen — Nishikori Kei | 1:2 (6:4, 3:6, 5:7) |
|
| 31.12.2024 | First round | Shapovalov Denis — Nishikori Kei | 0:2 (2:6, 3:6) |
|