Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/08/24 07:30 | Kazuki Nishiwaki v Daniel Batista | 6-3,6-4 |
| ITF M15 Monastir | 2021/08/23 08:00 | Kazuki Nishiwaki v Ajay Pruthvi Nemakal | 6-2,6-3 |
| ITF M15 Monastir | 2021/06/20 09:00 | Kazuki Nishiwaki v Raphael Lambling | 3-6,4-6 |
| ITF M15 Monastir | 2021/06/13 08:00 | Kazuki Nishiwaki v Kody Pearson | 4-6,2-6 |
| ITF M15 Monastir | 2021/06/07 09:00 | Kazuki Nishiwaki v Dong Ju Kim | 2-6,3-6 |
| ITF M25 Nonthaburi | 2020/02/02 06:00 | Reese Stalder v Kazuki Nishiwaki | 7-6,7-5 |
| ITF M25 Nonthaburi | 2020/01/26 02:30 | Kazuki Nishiwaki v Rimpei Kawakami | 6-7,2-6 |
| Challenger Kobe | 2019/11/04 08:30 | Kazuki Nishiwaki v Yosuke Watanuki | 3-6,4-6 |
| ITF M15 Monastir | 2021/08/21 08:00 | Kyle Seelig v Luciano Darderi | 6-7,7-6,6-7 |
| ITF M15 Monastir | 2021/08/20 10:55 | Hady Habib v Kyle Seelig | 4-6,6-2,0-6 |
| ITF M15 Monastir | 2021/08/19 07:30 | Kyle Seelig v Mateo Nicolas Martinez | 2-6,7-5,6-1 |
| ITF M15 Monastir | 2021/08/18 07:30 | Yuta Kawahashi v Kyle Seelig | 6-1,4-6,6-7 |
| ITF M15 Monastir | 2021/08/17 07:30 | Kyle Seelig v Daniel Batista | 6-3,6-2 |
| ITF M15 Monastir | 2021/08/16 08:30 | Kyle Seelig v Bharath Nishok Kumaran | 6-1,6-3 |
| ITF M15 Monastir | 2021/08/15 09:30 | Kyle Seelig v Fabrizio Andaloro | 6-4,6-0 |
| ITF M15 Monastir | 2021/08/11 18:00 | Kyle Seelig v Ajeet Rai | 1-6,5-7 |