Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/04/13 09:30 | Shintaro Imai v Evan Zhu | 6-4,6-7,6-0 |
| ITF - M15 Sharm El Sheikh | 2021/03/11 09:00 | Yu Hsiou Hsu v Shintaro Imai | 7-6,6-2 |
| ITF - M15 Sharm El Sheikh | 2021/03/10 13:30 | Ali Habib v Shintaro Imai | 3-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2021/03/04 07:30 | Shintaro Imai v Jakub Paul | 4-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2021/03/03 09:15 | Shintaro Imai v Jacopo Berrettini | 7-5,6-3 |
| ITF - M15 Sharm El Sheikh | 2021/02/25 07:30 | Paul Jubb v Shintaro Imai | 7-5,7-6 |
| ITF - M15 Sharm El Sheikh | 2021/02/24 12:25 | Jumpei Yamasaki v Shintaro Imai | 6-7,6-7 |
| ITF - M15 Sharm El Sheikh | 2021/02/17 13:05 | Yu Hsiou Hsu v Shintaro Imai | 6-1,7-5 |
| ITF - M15 Monastir | 2021/04/14 08:25 | Mikula, Michal v Martinez, Mirko | 2-6,1-6 |
| ITF - M15 Monastir | 2021/04/05 09:00 | Martinez, Mirko v Pujol Navarro, Bruno | 1-6,1-6 |
| ITF - M15 Monastir | 2021/04/04 11:30 | Martinez, Mirko v Suntic, Sabit | 7-5,6-1 |
| ITF M25 Biel | 2021/03/29 09:45 | Martinez, Mirko v Arthur Cazaux | 3-6,2-6 |
| Challenger - Lugano | 2021/03/21 13:20 | Martinez, Mirko v Jelle Sels | 6-7,2-6 |
| ITF - M15 Poitiers | 2021/03/14 13:55 | Cyril Vandermeersch v Martinez, Mirko | 7-5,6-2 |
| ITF - M25 Trimbach | 2021/03/10 09:00 | Alafia Ayeni v Martinez, Mirko | 7-6,7-6 |
| ITF - M15 Monastir | 2021/03/01 09:00 | Martinez, Mirko v Luca Castagnola | 6-4,1-6,5-10 |