Stadium: Pista 3 Round: 26 Ground: Hardcourt outdoor
| Challenger Braunschweig | 2021/07/05 16:25 | Elias Ymer v Tobias Kamke | 6-3,7-5 |
| Wimbledon | 2021/06/22 15:30 | Thiago Seyboth Wild v Tobias Kamke | 6-4,6-4 |
| Challenger Prostejov | 2021/06/17 09:00 | Zdenek Kolar v Tobias Kamke | 6-2,6-3 |
| Challenger Prostejov | 2021/06/16 11:45 | Tobias Kamke v Jiri Vesely | 6-3,6-4 |
| Challenger Prostejov | 2021/06/15 11:20 | Skander Mansouri v Tobias Kamke | 0-6,6-3,2-6 |
| Challenger Bratislava | 2021/06/08 10:00 | Tobias Kamke v Frederico Ferreira Silva | 4-6,4-6 |
| French Open | 2021/05/28 08:30 | Denis Istomin v Tobias Kamke | 6-4,7-6 |
| French Open | 2021/05/26 13:55 | Tomas Barrios Vera v Tobias Kamke | 4-6,2-6 |
| ITF M25 Nur-Sultan | 2021/07/07 05:10 | Sanjar Fayziev v Nick Chappell | 6-4,6-4 |
| ITF M25 Bakio | 2021/06/30 10:00 | Antoine Bellier v Nick Chappell | 3-6,6-4,6-4 |
| ATP Eastbourne | 2021/06/19 15:45 | Nick Chappell v Mikhail Kukushkin | 2-6,3-6 |
| Challenger Aix en Provence | 2021/06/13 08:30 | Nick Chappell v Sadio Doumbia | 0-6,4-6 |
| Challenger Orlando | 2021/06/07 14:00 | Thiago Agustin Tirante v Nick Chappell | 6-3,6-4 |
| Challenger Orlando | 2021/06/06 14:00 | Ryan Harrison v Nick Chappell | 2-6,6-7 |
| Challenger Little Rock | 2021/06/02 16:30 | Dayne Kelly v Nick Chappell | 6-1,7-5 |
| ITF M25 Pensacola | 2021/05/19 16:50 | Nick Chappell v Oscar Mesquida Berg | 5-7,6-4,3-6 |