Stadion: Court 2 Round: 25 Ground: Hardcourt outdoor
| 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 |
| ITF - M15 - Fayetteville | 2021/09/22 21:25 | Mark Whitehouse v Ryan Shane | 6-1,6-0 |
| ITF - M15 - Champaign | 2021/09/15 19:40 | Ryan Shane v Nathan Ponwith | 5-7,2-6 |
| ITF - M25 - Champaign | 2021/07/27 15:00 | Ryan Shane v Lucas Horve | 6-3,4-6,4-10 |
| ITF - M25 - Champaign | 2021/07/26 15:00 | Ryan Shane v Alexander Petrov | 6-4,6-2 |
| ITF - M15 - Edwardsville | 2021/07/21 19:20 | Dusty H. Boyer v Ryan Shane | 6-3,6-1 |
| ITF - M15 - Edwardsville | 2021/07/20 15:30 | Ryan Shane v Toby D. Boyer | 6-2,6-7,10-7 |
| ITF - M15 - Weston | 2021/07/01 15:55 | Axel Nefve v Ryan Shane | 6-0,7-5 |
| ITF - M25 - Tulsa | 2021/06/17 00:35 | Oliver Crawford v Ryan Shane | 7-5,7-6 |