Stadium: Court 6 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/02/22 08:00 | Greif, Jonas v Kenneth Raisma | 2-6,2-6 |
| ITF - M15 Monastir | 2021/02/21 11:00 | Greif, Jonas v Brun, Thomas George | 6-4,6-0 |
| ITF - M15 Monastir | 2021/02/15 09:00 | Greif, Jonas v Timmermans, Jesse | 3-6,1-6 |
| ITF - M15 Monastir | 2021/02/14 09:00 | Alessandro Ingarao v Greif, Jonas | 6-7,2-6 |
| ITF - M15 Monastir | 2020/03/09 08:00 | Leopold Zima v Greif, Jonas | 6-3,6-4 |
| ITF - M15 Monastir | 2020/03/08 08:00 | Pirolt, Pietro v Greif, Jonas | 5-7,1-6 |
| ITF - M15 Monastir | 2020/02/02 08:00 | Giacalone, Omar v Greif, Jonas | 6-0,6-2 |
| ITF - M15 Antalya | 2019/12/16 08:00 | Volpi, Octavio v Greif, Jonas | 6-4,6-4 |
| ITF - M15 Santo Domingo | 2020/12/08 13:30 | Dominik Palan v Telles, Leonardo | 7-6,4-6,10-6 |
| ITF - M15 Santo Domingo | 2020/12/04 14:45 | Nick Chappell v Telles, Leonardo | 6-4,7-5 |
| ITF - M15 Santo Domingo | 2020/12/03 13:30 | Telles, Leonardo v Smith, Roy | 6-3,6-3 |
| ITF - M15 Santo Domingo | 2020/12/02 13:30 | Telles, Leonardo v Alejandro Jose Gandini | 6-4,6-3 |
| ITF - M15 Santo Domingo | 2020/12/01 13:30 | Mendoza, Alejandro v Telles, Leonardo | 1-6,1-6 |
| ITF - M15 Santo Domingo | 2020/11/29 15:30 | Segarelli, Emilio Andrea v Telles, Leonardo | 1-6,1-6 |
| ITF M15 Sintra | 2020/09/17 13:55 | Nuno Borges v Telles, Leonardo | 3-6,6-2,6-2 |
| ITF M15 Sintra | 2020/09/16 10:50 | Telles, Leonardo v Neuchrist, Maximilian | 7-6,7-6 |