Stadion: Indoor Court Round: 26 Ground: Hardcourt outdoor
| Challenger - Neapel - Herrendoppel | 2021/10/07 18:05 | Brown/Vavassori v Cornea/Tsitsipas | 6-2,6-2 |
| Challenger - Sibiu - Herrendoppel | 2021/10/01 14:15 | Cornea/Tsitsipas v Blancaneaux/Kadhe | 5-7,2-6 |
| Challenger - Biel - Herrendoppel | 2021/09/21 14:45 | Bemelmans/Masur v Cornea/Tsitsipas | 6-4,3-6,13-11 |
| Challenger - Cassis - Herrendoppel | 2021/09/09 10:35 | Cornea/Tsitsipas v Matsui/Uesugi | 7-5,4-6,8-10 |
| Challenger - Cassis - Herrendoppel | 2021/09/08 09:45 | Cornea/Tsitsipas v Aragone/Barrientos | 6-4,7-6 |
| Challenger - St. Tropez - Herrendoppel | 2021/09/01 09:00 | Vance/Whiting v Cornea/Tsitsipas | 6-3,3-6,12-10 |
| Challenger - Prag - Herrendoppel | 2021/08/28 14:30 | Krumich/Paulson v Cornea/Tsitsipas | 3-6,6-3,8-10 |
| Challenger - Prag - Herrendoppel | 2021/08/26 14:10 | Geerts/Peniston v Cornea/Tsitsipas | 3-6,6-3,12-14 |