Round: 27 Ground: Hardcourt outdoor
| ITF M15 Heraklion MD | 2021/11/16 13:20 | Friberg/Park v Handel/Schaer | 6-3,3-6,3-10 |
| ATP Hamburg MD | 2021/07/13 15:25 | Tsitsipas/Tsitsipas v Puetz/Venus | 5-7,6-7 |
| Wimbledon MD | 2021/07/02 13:30 | Tsitsipas/Tsitsipas v Munar/Norrie | 5-7,6-7 |
| ATP Lyon MD | 2021/05/19 10:45 | Ebden/Smith v Tsitsipas/Tsitsipas | 7-6,6-3 |
| ATP Rome MD | 2021/05/11 12:20 | Tsitsipas/Tsitsipas v Kubot/Skugor | 6-7,3-6 |
| ATP Madrid MD | 2021/05/04 14:55 | Koolhof/Kubot v Tsitsipas/Tsitsipas | 6-4,5-7,10-6 |
| ATP Monte Carlo MD | 2021/04/14 12:10 | Tsitsipas/Tsitsipas v Garin/Pella | 4-6,4-6 |
| ATP Monte Carlo MD | 2021/04/13 15:00 | Krawietz/Tecau v Tsitsipas/Tsitsipas | 6-7,6-3,9-11 |
| ATP Marseille MD | 2021/03/10 15:30 | Tsitsipas/Tsitsipas v Glasspool/Heliovaara | 5-7,1-6 |