Round: 26 Ground: Clay
| Challenger Biel - MP | 2021/09/21 14:45 | Bemelmans/Masur v Cornea/Tsitsipas | 6-4,3-6,13-11 |
| Challenger Cassis - MP | 2021/09/09 10:35 | Cornea/Tsitsipas v Matsui/Uesugi | 7-5,4-6,8-10 |
| Challenger Cassis - MP | 2021/09/08 09:45 | Cornea/Tsitsipas v Aragone/Barrientos | 6-4,7-6 |
| Challenger St. Tropez - MP | 2021/09/01 09:00 | Vance/Whiting v Cornea/Tsitsipas | 6-3,3-6,12-10 |
| Challenger Praha - MP | 2021/08/28 14:30 | Krumich/Paulson v Cornea/Tsitsipas | 3-6,6-3,8-10 |
| Challenger Praha - MP | 2021/08/26 14:10 | Geerts/Peniston v Cornea/Tsitsipas | 3-6,6-3,12-14 |
| Challenger Praha - MP | 2021/08/24 11:45 | Jenicek/Kodat v Cornea/Tsitsipas | 4-6,5-7 |
| ITF M25 Bolzano - MP | 2021/08/06 13:00 | Cornea/Tsitsipas v Bortolotti/Dutra Da Silva | 6-3,6-4 |
| ITF M25 Wroclaw - MP | 2021/07/01 14:30 | Ignatik/Ionel v Bortolotti/Rodriguez | 5-7,6-7 |
| ITF M25 Wroclaw - MP | 2021/06/30 16:45 | Krawczynski/Szic v Ignatik/Ionel | 3-6,3-6 |