Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/05/07 08:30 | Mohamed Aziz Dougaz v Yusuke Takahashi | 6-3,6-4 |
| ITF M15 Monastir | 2021/05/06 13:00 | Constantin Bittoun Kouzmine v Yusuke Takahashi | 2-6,1-6 |
| ITF M15 Monastir | 2021/05/04 10:30 | Robert Strombachs v Yusuke Takahashi | 3-6,6-3,1-6 |
| Challenger Salinas 2 | 2021/04/26 18:00 | Nicolas Alvarez v Yusuke Takahashi | 7-6,6-0 |
| Challenger Salinas | 2021/04/19 14:30 | Facundo Diaz Acosta v Yusuke Takahashi | 6-2,6-2 |
| Challenger Salinas | 2021/04/18 16:55 | Gage Brymer v Yusuke Takahashi | 4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/03/17 09:05 | Lucas Miedler v Yusuke Takahashi | 6-4,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/10 07:30 | Yusuke Takahashi v Aldin Setkic | 3-6,2-6 |
| ITF M15 Monastir | 2021/05/02 09:30 | Francesco Cano v Mehdi Benchakroun | 6-3,2-6,10-7 |
| ITF M15 Monastir | 2021/04/28 10:50 | Mehdi Benchakroun v Remy Bertola | 2-6,2-6 |