Stadium: Court 4 Round: 28 Ground: Clay
| ITF - M15 Cairo - Dublu Masculin | 2021/01/28 13:10 | Ichikawa/Watanabe v Capecchi/El Mihdawy | 6-4,6-1 |
| ITF - M15 Cairo - Dublu Masculin | 2021/01/26 13:25 | Ichikawa/Watanabe v Qamar/A Senthilkumar | 7-6,6-4 |
| ITF - M15 Cairo - Dublu Masculin | 2021/01/14 13:15 | Tajima/Vidal Azorin v Ichikawa/Watanabe | 6-4,6-1 |
| ITF - M15 Cairo - Dublu Masculin | 2021/01/12 11:00 | Barbu/Jianu v Ichikawa/Watanabe | 6-3,4-6,10-12 |
| Challenger - Kobe - Dublu Masculin | 2019/11/05 06:55 | Ichikawa/Watanabe v Matsui/Watanuki | 6-3,5-7,4-10 |
| ITF M15 Nanchang MD | 2019/10/02 08:05 | Ichikawa/Watanabe v Ho/Yeung | 2-6,6-2,7-10 |
| ITF M15 Nanchang MD | 2019/09/25 06:05 | Ichikawa/Watanabe v Cheruku/Peranamallur | 4-6,7-6,5-10 |
| ITF - M15 Hua Hin - Dublu Masculin | 2019/09/04 08:25 | Ichikawa/Watanabe v Fukuda/Moritani | 2-6,3-6 |
| ITF - M15 Cairo - Dublu Masculin | 2021/01/28 14:45 | Onishi/Yamasaki v Paz/Velotti | 6-1,6-0 |
| ITF - M15 Cairo - Dublu Masculin | 2021/01/26 11:10 | Onishi/Yamasaki v Bertola/Hampel | 6-3,6-4 |
| ITF - M15 Cairo - Dublu Masculin | 2021/01/19 09:25 | Onishi/Yamasaki v Granollers-Pujol/T Bague | 5-7,4-6 |
| ITF Hong Kong F5 MD | 2016/12/25 23:00 | Onishi/Yamasaki v Li/Tang | 3-6,3-6 |