Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/06/23 08:30 | Alexander Donski v Omni Kumar | 1-6,3-6 |
| ITF M15 Monastir | 2021/06/21 13:30 | Tomas Farjat v Omni Kumar | 2-6,7-5,3-10 |
| ITF M15 Monastir | 2021/06/21 09:00 | Younes Lalami Laaroussi v Omni Kumar | 1-6,3-6 |
| ITF M15 Monastir | 2021/06/16 08:30 | Omni Kumar v Moez Echargui | 4-6,7-6,4-6 |
| ITF M15 Monastir | 2021/06/14 12:00 | Omni Kumar v Cesar Bourgois | 6-2,7-6 |
| ITF M15 Monastir | 2021/06/14 08:00 | Omni Kumar v Connor Di Marco | 6-2,6-0 |
| ITF M15 Monastir | 2021/06/13 12:30 | Omni Kumar v Geun Jun Kim | 6-1,6-0 |
| ITF M15 Monastir | 2021/05/26 09:30 | Omni Kumar v Yuta Kikuchi | 6-3,5-7,4-6 |
| ITF M15 Monastir | 2021/06/23 13:00 | Petros Tsitsipas v Jabari Stafford | 6-2,6-3 |
| ITF M15 Heraklion | 2021/06/10 07:30 | Petros Tsitsipas v Yasha Zemel | 6-7,2-6 |
| ITF M15 Heraklion | 2021/06/08 08:00 | Petros Tsitsipas v Ioannis Kountourakis | 6-1,7-6 |
| ITF M15 Heraklion | 2021/06/03 09:00 | Billy Harris v Petros Tsitsipas | 4-6,6-0,7-6 |
| ITF M15 Heraklion | 2021/06/02 08:20 | Petros Tsitsipas v Alec Deckers | 6-4,6-4 |
| ITF M15 Heraklion | 2021/05/27 10:45 | Petros Tsitsipas v Daniel Cox | 6-4,0-6,1-6 |
| ATP Marseille | 2021/03/09 17:55 | Alejandro Davidovich Fokina v Petros Tsitsipas | 6-0,6-2 |
| ITF M15 Monastir | 2020/12/24 10:20 | Kaichi Uchida v Petros Tsitsipas | 6-3,6-2 |