Stadium: Court 1 Round: 26 Ground: Hardcourt indoor
| ITF M15 East Lansing | 2021/11/16 18:00 | Raymond Sarmiento v Yasha Zemel | 6-3,6-4 |
| ITF M25 Calabasas | 2021/10/27 17:00 | Raymond Sarmiento v Connor Farren | 6-7,6-7 |
| UTR Pro Tennis Series California | 2021/08/29 18:00 | Tristan Boyer v Raymond Sarmiento | 6-3,6-4 |
| UTR Pro Tennis Series California | 2021/08/28 18:00 | Kyle Kang v Raymond Sarmiento | 6-7,4-6 |
| UTR Pro Tennis Series California | 2021/08/27 19:30 | Sema Pankin v Raymond Sarmiento | 4-6,3-6 |
| UTR Pro Tennis Series California | 2021/08/24 19:30 | Kris Van Wyk v Raymond Sarmiento | 4-6,1-6 |
| UTR Pro Tennis Series California | 2021/08/23 15:00 | Wyatt DeMulling v Raymond Sarmiento | 1-6,3-6 |
| UTR Pro Tennis Series California | 2021/08/22 18:00 | Alessandro-D Ventre v Raymond Sarmiento | 3-6,3-6 |
| 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 |
| ITF M15 Antalya | 2021/04/20 10:35 | Emir Sendogan v Shunsuke Mitsui | 2-6,6-3,4-6 |