Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/04/25 10:30 | Mikhail Yehayan v Daiki Yoshimura | 3-6,1-6 |
| ITF M15 Antalya | 2021/04/21 09:00 | Daiki Yoshimura v Emiliano Maggioli | 3-6,3-6 |
| ITF M15 Antalya | 2021/04/12 09:00 | Elijah Poritzky v Daiki Yoshimura | 6-1,6-4 |
| ITF M15 Antalya | 2021/04/11 07:00 | Daiki Yoshimura v Keisuke Saitoh | 6-2,6-3 |
| ITF M15 Monastir | 2021/02/22 14:30 | Colin Sinclair v Daiki Yoshimura | 6-0,6-3 |
| ITF M15 Monastir | 2021/02/22 09:00 | Daiki Yoshimura v Antonio Massara | 7-6,2-6,14-12 |
| ITF M15 Monastir | 2021/02/21 11:00 | Daiki Yoshimura v Jason Janis | 6-0,6-2 |
| ITF M15 Monastir | 2021/02/15 09:00 | Yanais Laurent v Daiki Yoshimura | 6-0,6-2 |
| ITF M15 Monastir | 2021/04/25 10:30 | Miguel Fernando Pereira v Constantin Bittoun Kouzmine | 2-6,3-6 |
| ITF M15 St Petersburg | 2021/04/15 09:45 | Constantin Bittoun Kouzmine v Alexey Zakharov | 4-6,4-6 |
| ITF M15 St Petersburg | 2021/04/14 10:40 | Vladimir Ivanov v Constantin Bittoun Kouzmine | 1-6,7-6,2-6 |
| ITF M15 St Petersburg | 2021/04/12 10:25 | Pavel Shchaya-Zubrov v Constantin Bittoun Kouzmine | 0-6,3-6 |
| ITF M15 St Petersburg | 2021/04/07 09:55 | Illya Beloborodko v Constantin Bittoun Kouzmine | 6-3,6-1 |
| ITF M15 St Petersburg | 2021/04/05 08:40 | Constantin Bittoun Kouzmine v Matic Spec | 6-7,6-7 |
| ITF M15 St Petersburg | 2021/04/04 11:55 | Jaimee Floyd Angele v Constantin Bittoun Kouzmine | 6-1,1-6,7-10 |
| ITF M15 Poitiers | 2021/03/14 11:45 | Constantin Bittoun Kouzmine v Vincent Stouff | 6-3,6-7,7-10 |