Shanghai 
Rio de Janeiro 
Mallorca 
Rovereto 
Curitiba 
Santa Cruz de la Sierra 2 
Cali 
Davis Сup Group I Tenis. Oynanan Nishikori Kei. Sezon 2026
Ülke 
Japonya. Sıralaması ATP 436.
Japonya. Sıralaması ATP 436.| ATP - AIG Japan Open Tennis Championships | ||||
|---|---|---|---|---|
| 01.10.2026 | İlk hafta | Nishikori Kei — Tiafoe Frances | 0:2 (4:6, 4:6) |
|
 ATP - US Open | ||||
| 28.08.2026 | Çeyrek - Final | Nishikori Kei — Sakamoto Rei | 0:2 (4:6, 6:7) |
|
| 25.08.2026 | Elemeler - 1. Hafta | Ofner Sebastian — Nishikori Kei | 1:2 (1:6, 6:2, 2:6) |
|
| ATP - Western & Southern Financial Group Masters | ||||
| 13.08.2026 | Çeyrek - Final | Trungelliti Marco — Nishikori Kei | 2:1 (4:6, 7:5, 6:3) |
|
| 12.08.2026 | Elemeler - 1. Hafta | Nishikori Kei — Comesana Francisco | 2:1 (6:4, 1:6, 7:5) |
|
 ATP - Rogers Masters | ||||
| 01.08.2026 | Çeyrek - Final | Zheng Michael — Nishikori Kei | 2:0 (6:3, 6:1) |
|
| ATP - Legg Masson Tennis Classic | ||||
| 30.07.2026 | İkinci hafta | Jodar Rafael — Nishikori Kei | 2:0 (6:3, 6:2) |
|
| 28.07.2026 | İlk hafta | Nishikori Kei — Shang Juncheng | 2:1 (6:7, 6:3, 6:4) |
|
| Savannah | ||||
| 21.04.2026 | İlk hafta | Nishikori Kei — Smith Colton | 2:0 (6:2, 6:3) |
|
| Sarasota | ||||
| 10.04.2026 | İkinci hafta | Wu Yibing — Nishikori Kei | 2:1 (6:3, 3:6, 6:1) |
|
| 08.04.2026 | İlk hafta | Nishikori Kei — Kicker Nicolas | 2:0 (6:3, 6:2) |
|
 Cherbourg | ||||
| 09.03.2026 | İlk hafta | Tabur Clement — Nishikori Kei | 2:0 (7:6, 6:4) |
|
| Thionville | ||||
| 04.03.2026 | İkinci hafta | Budkov Kjaer Nicolai — Nishikori Kei | 2:1 (3:6, 6:4, 6:2) |
|
| 03.03.2026 | İlk hafta | Nishikori Kei — Tabur Clement | 2:1 (7:5, 4:6, 6:2) |
|
| 02.03.2026 | Çeyrek - Final | Nishikori Kei — Sels Jelle | 2:1 (7:6, 4:6, 6:4) |
|
 Canberra | ||||
| 06.01.2026 | İlk hafta | Kopriva Vit — Nishikori Kei (Retired) | 1:0 (6:1, 2:2) |
|