Stadium: Court 5 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Decatur | 2021/08/02 15:00 | Jumpei Yamasaki v Carson Haskins | 6-1,6-2 |
| ITF M25 Champaign | 2021/07/29 17:00 | Gijs Brouwer v Jumpei Yamasaki | 6-3,6-0 |
| ITF M25 Champaign | 2021/07/28 19:10 | Martin Damm v Jumpei Yamasaki | 6-7,6-7 |
| ITF M15 Antalya | 2021/05/02 06:00 | Jumpei Yamasaki v Federico Bertuccioli | 6-2,4-6,10-6 |
| ITF M15 Antalya | 2021/04/27 10:30 | Mick Veldheer v Jumpei Yamasaki | 4-6,6-1,6-0 |
| ITF M15 Antalya | 2021/04/20 07:00 | Jumpei Yamasaki v Bogdan Bobrov | 3-6,5-7 |
| ITF M15 Antalya | 2021/04/13 07:00 | Jumpei Yamasaki v Karl Friberg | 1-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/03/03 07:30 | Martins Podzus v Jumpei Yamasaki | 7-5,6-3 |
| ITF M25 Decatur | 2021/08/02 15:00 | Stefan Dostanic v Reese Stalder | 7-5,6-1 |
| Challenger Lexington | 2021/07/26 23:40 | Stefan Dostanic v Alejandro Tabilo | 2-6,0-6 |
| ITF M25 Los Angeles | 2020/01/07 18:00 | Hady Habib v Stefan Dostanic | 7-5,6-2 |
| ITF M25 Los Angeles | 2020/01/06 18:00 | Stefan Dostanic v Eric Hadigian | 6-1,6-4 |
| ITF M25 Iowa City | 2019/07/17 22:45 | Preston Touliatos v Stefan Dostanic | 7-6,7-6 |
| Challenger Winnetka | 2019/07/09 15:00 | Ulises Blanch v Stefan Dostanic | 6-2,7-6 |
| ITF USA F26 | 2018/09/26 18:00 | Joao Lucas Reis da Silva v Stefan Dostanic | 6-4,6-2 |
| ITF USA F26 Qual | 2018/09/24 17:00 | Igor Gimenez v Stefan Dostanic | 6-7,6-7 |