| UTR Pro Tennis Series Miami | 2021/11/07 15:00 | Matthew Segura v Bruno Caula | 5-7,6-1,1-6 |
| UTR Pro Tennis Series Miami | 2021/11/06 22:36 | Matthew Segura v Henry Lieberman | 6-2,6-5 |
| UTR Pro Tennis Series Miami | 2021/11/06 15:30 | Matthew Segura v Maximiliano Estevez | 2-6,3-6 |
| UTR Pro Tennis Series Miami | 2021/11/04 17:00 | Matthew Segura v Juan David Velasquez | 6-4,5-4 |
| UTR Pro Tennis Series Miami | 2021/11/03 17:00 | Jerry Barton v Matthew Segura | 4-6,3-5 |
| UTR Pro Tennis Series Miami | 2021/11/02 18:30 | Bruno Vietri v Matthew Segura | 7-5,2-6,4-6 |
| ITF M15 Vero Beach | 2021/10/22 19:00 | Matthew Segura v Ezekiel Clark | 5-7,4-6 |
| ITF M15 Vero Beach | 2021/10/20 22:00 | Matthew Segura v Cooper Williams | 1-6,6-3,6-1 |
| ITF M15 East Lansing | 2021/11/18 18:00 | Raymond Sarmiento v Shunsuke Mitsui | 4-6,6-2,7-6 |
| ITF M15 East Lansing | 2021/11/17 17:55 | Joshua Peck v Shunsuke Mitsui | 6-0,4-6,5-7 |
| ITF M15 East Lansing | 2021/11/16 15:00 | Shunsuke Mitsui v Adit Sinha | 6-2,6-4 |
| ITF M15 Monastir | 2021/05/11 11:30 | Shunsuke Mitsui v Jeremy Beale | 6-7,6-4,2-6 |
| ITF M15 Monastir | 2021/05/02 08:00 | Shunsuke Mitsui v Yuta Kikuchi | 1-6,2-6 |
| ITF M15 Monastir | 2021/04/26 09:00 | Zachary Svajda v Shunsuke Mitsui | 6-1,7-6 |
| ITF M15 Antalya | 2021/04/23 09:05 | Francesco Forti v Shunsuke Mitsui | 4-6,6-3,6-3 |
| ITF M15 Antalya | 2021/04/22 10:15 | Shunsuke Mitsui v Bogdan Bobrov | 1-6,7-6,6-0 |