Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/04/11 08:00 | Vincent Knoess v Jason Janis | 0-6,3-6 |
| ITF M15 Monastir | 2021/02/28 09:00 | Valentin Lapalu v Jason Janis | 6-1,6-1 |
| ITF M15 Monastir | 2021/02/21 11:00 | Daiki Yoshimura v Jason Janis | 6-0,6-2 |
| ITF M15 Monastir | 2021/02/14 08:30 | Omar Giacalone v Jason Janis | 6-2,6-1 |
| ITF M15 Monastir | 2021/02/10 08:30 | Jason Janis v Alexander Erler | 0-6,4-6 |
| ITF M15 Monastir | 2021/01/31 08:30 | Jason Janis v Alexandre Ruscica | 1-6,0-6 |
| ITF M15 Monastir | 2020/12/15 08:00 | Lucas Poullain v Jason Janis | 6-2,6-0 |
| ITF M15 Monastir | 2020/12/06 09:00 | Jason Janis v Uladzislau Zhuk | 6-4,2-6,3-10 |
| ITF M15 Monastir | 2021/04/11 08:00 | Jonas Greif v Yuta Kawahashi | 2-6,3-6 |
| Challenger Kobe | 2019/11/05 01:30 | Renta Tokuda v Yuta Kawahashi | 6-3,6-1 |
| Challenger Kobe | 2019/11/04 01:30 | Yuta Kawahashi v Ren Nakamura | 6-2,6-1 |
| ITF M15 Changwon | 2019/10/16 02:55 | Yuta Kawahashi v Michael Shabaz | 7-5,2-6,4-6 |
| ITF M15 Akishima | 2019/06/16 02:00 | Yuta Kawahashi v Yuta Kikuchi | 5-7,7-5,7-6 |
| ITF M15 Akishima | 2019/06/15 03:30 | Rio Noguchi v Yuta Kawahashi | 4-6,3-6 |
| ITF M15 Akishima | 2019/06/14 01:00 | Yuta Kawahashi v Kazuma Kawachi | 7-5,6-1 |
| ITF M15 Akishima | 2019/06/13 02:30 | Sho Shimabukuro v Yuta Kawahashi | 2-6,6-4,3-6 |