Stadium: Court 4 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Jerusalem | 2021/05/13 08:25 | Lazarov, Alexandar v Stalder, Reese | 6-3,3-6,6-3 |
| ITF M15 Jerusalem | 2021/05/11 06:30 | Lazarov, Alexandar v Samer Al Tori | 6-3,6-1 |
| ITF M15 Ramat Hasharon | 2021/05/07 07:00 | Lazarov, Alexandar v Yshai Oliel | 4-6,3-6 |
| ITF M15 Ramat Hasharon | 2021/05/06 08:50 | Lazarov, Alexandar v Luigi Sorrentino | 7-5,6-1 |
| ITF M15 Ramat Hasharon | 2021/05/05 10:40 | Lazarov, Alexandar v Boyer, Toby D | 6-0,6-1 |
| ITF - M15 Opatija | 2021/03/23 12:30 | Lazarov, Alexandar v Prechtel, Sebastian | 6-7,4-6 |
| ITF - M15 Rovinj | 2021/03/18 10:10 | Martin Damm v Lazarov, Alexandar | 6-1,5-7,6-4 |
| ITF - M15 Rovinj | 2021/03/17 10:50 | Lazarov, Alexandar v Ignatik, Uladzimir | 6-4,4-6,7-5 |
| ITF M15 Jerusalem | 2021/05/13 07:00 | Karlo Cubelic v Felix Corwin | 2-6,0-6 |
| ITF M15 Jerusalem | 2021/05/11 07:40 | Hasson, Jordan v Felix Corwin | 6-1,1-6,2-6 |
| ITF M15 Ramat Hasharon | 2021/05/08 07:00 | Felix Corwin v Yshai Oliel | 1-6,4-6 |
| ITF M15 Ramat Hasharon | 2021/05/07 07:00 | Deviatiarov, Marat v Felix Corwin | 5-7,4-6 |
| ITF M15 Ramat Hasharon | 2021/05/06 08:30 | Bergevi, Filip v Felix Corwin | 2-6,2-6 |
| ITF M15 Ramat Hasharon | 2021/05/05 07:30 | Dylan Salton v Felix Corwin | 0-6,5-7 |
| Challenger Salinas | 2021/04/18 15:00 | Gonzalo Villanueva v Felix Corwin | 6-7,6-4,7-5 |
| UTR Pro Tennis Series Cancun | 2021/04/04 13:00 | Felix Corwin v Wilson Leite | 6-3,4-6,6-3 |