Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/05/11 11:30 | Mitsui, Shunsuke v Beale, Jeremy | 6-7,6-4,2-6 |
| ITF - M15 Monastir | 2021/05/02 08:00 | Mitsui, Shunsuke v Yuta Kikuchi | 1-6,2-6 |
| ITF - M15 Monastir | 2021/04/26 09:00 | Zachary Svajda v Mitsui, Shunsuke | 6-1,7-6 |
| ITF - M15 Antalya | 2021/04/23 09:05 | Forti, Francesco v Mitsui, Shunsuke | 4-6,6-3,6-3 |
| ITF - M15 Antalya | 2021/04/22 10:15 | Mitsui, Shunsuke v Bogdan Bobrov | 1-6,7-6,6-0 |
| ITF - M15 Antalya | 2021/04/20 10:35 | Sendogan, Emir v Mitsui, Shunsuke | 2-6,6-3,4-6 |
| ITF M15 Fayetteville | 2021/09/22 21:25 | Mark Whitehouse v Shane, Ryan | 6-1,6-0 |
| ITF M15 Champaign | 2021/09/15 19:40 | Shane, Ryan v Nathan Ponwith | 5-7,2-6 |
| ITF M25 Champaign | 2021/07/27 15:00 | Shane, Ryan v Horve, Lucas | 6-3,4-6,4-10 |
| ITF M25 Champaign | 2021/07/26 15:00 | Shane, Ryan v Alexander Petrov | 6-4,6-2 |
| ITF M15 Edwardsville | 2021/07/21 19:20 | Boyer, Dusty H v Shane, Ryan | 6-3,6-1 |
| ITF M15 Edwardsville | 2021/07/20 15:30 | Shane, Ryan v Boyer, Toby D | 6-2,6-7,10-7 |
| Weston, FL, Singles M-ITF-USA-05A | 2021/07/01 15:55 | Axel Nefve v Shane, Ryan | 6-0,7-5 |
| Tulsa, Singles Main, M-ITF-USA-16A | 2021/06/17 00:35 | Oliver Crawford v Shane, Ryan | 7-5,7-6 |