Estadio: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/10/25 09:00 | Matas Vasiliauskas v Jonas Greif | 6-2,6-3 |
| ITF M15 Monastir | 2021/10/17 09:30 | Jonas Greif v Rishabdev Raman | 5-7,1-6 |
| ITF M15 Bad Waltersdorf | 2021/08/30 07:00 | Matic Spec v Jonas Greif | 6-0,6-1 |
| ITF M15 Warmbad-Villach | 2021/08/15 07:00 | Jonas Greif v Gabriel Decamps | 0-6,2-6 |
| ITF M25 Bolzano | 2021/08/03 15:35 | Petros Tsitsipas v Jonas Greif | 6-3,6-2 |
| ITF M15 Monastir | 2021/04/18 10:00 | Leyton Rivera v Jonas Greif | 6-1,6-2 |
| ITF M15 Monastir | 2021/04/11 08:00 | Jonas Greif v Yuta Kawahashi | 2-6,3-6 |
| ITF M15 Monastir | 2021/03/07 08:00 | Jonas Greif v Luca Castagnola | 2-6,0-6 |
| ITF M15 Monastir | 2021/10/17 11:30 | Josef Southcombe v Mohamed Amin Oueslati | 6-3,6-2 |
| ITF M15 Monastir | 2021/10/11 08:00 | Denis Constantin Spiridon v Mohamed Amin Oueslati | 6-2,6-2 |
| ITF M15 Monastir | 2021/10/04 09:00 | Pranash Babu v Mohamed Amin Oueslati | 6-4,6-4 |
| ITF M15 Monastir | 2021/09/27 09:00 | Mohamed Amin Oueslati v Ryotaro Matsumura | 2-6,2-6 |
| ITF M15 Monastir | 2021/09/26 09:00 | Mohamed Amin Oueslati v Rayen Zribi | 6-2,6-1 |
| ITF M15 Monastir | 2021/09/19 14:30 | Kousuke Ogura v Mohamed Amin Oueslati | 6-1,6-2 |
| ITF M15 Monastir | 2021/09/14 08:00 | Alessio Zanotti v Mohamed Amin Oueslati | 6-0,6-3 |
| ITF M15 Monastir | 2021/09/13 09:00 | Lorenzo Ramon v Mohamed Amin Oueslati | 4-6,2-6 |