Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/08/08 12:00 | Linghao Zhang v Ivan Dikenstein | 6-1,5-7,10-6 |
| ITF M15 Novi Sad | 2021/08/01 12:45 | Linghao Zhang v Valerio Aboian | 0-6,3-6 |
| ITF China F11 Qual | 2018/07/16 01:00 | Jianhui Li v Linghao Zhang | 6-2,6-1 |
| ITF China F11 Qual | 2018/07/15 01:00 | Shenglin Zhuo v Linghao Zhang | 0-6,4-6 |
| ITF M15 Monastir | 2021/08/03 07:30 | Seita Watanabe v Martin Dimitrov | 6-7,3-6 |
| ITF M15 Monastir | 2021/08/02 08:30 | Seita Watanabe v Credit Chaiyarin | 6-3,7-5 |
| ITF M15 Monastir | 2021/08/01 09:00 | Seita Watanabe v Babji Siva Atturu | 6-1,6-0 |
| ITF M15 Monastir | 2021/06/07 08:00 | Seita Watanabe v Ji Hoon Son | 1-6,6-1,6-10 |
| ITF M15 Monastir | 2021/06/06 10:00 | Seita Watanabe v Connor Di Marco | 6-2,3-6,10-6 |
| ITF M15 Monastir | 2021/05/31 09:00 | Seita Watanabe v Emil Reinberg | 6-7,5-7 |
| ITF M15 Monastir | 2021/05/27 11:40 | Thomas Fancutt v Seita Watanabe | 7-6,4-6,6-2 |
| ITF M15 Monastir | 2021/05/26 09:30 | Seita Watanabe v Mauro De Maio | 6-3,6-3 |