Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| 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 Porec | 2021/03/12 09:00 | Damien Wenger v Lazarov, Alexandar | 7-6,6-0 |
| ITF M15 Jerusalem | 2021/05/12 08:40 | Orel Kimhi v Stalder, Reese | 6-7,2-6 |
| ITF M15 Jerusalem | 2021/05/11 06:30 | Stalder, Reese v Arh, Anze | 7-6,6-4 |
| ITF M15 Jerusalem | 2021/05/10 07:00 | Stalder, Reese v Caripi, Vasilios | 2-6,6-1,10-4 |
| ITF M15 Jerusalem | 2021/05/09 08:30 | Stalder, Reese v Lorenzo Vatteroni | 6-2,6-2 |
| ITF M15 Ramat Hasharon | 2021/05/04 07:00 | Orel Kimhi v Stalder, Reese | 7-6,4-6,6-1 |
| ITF - M25 Naples | 2021/02/22 16:00 | Stalder, Reese v Mark Whitehouse | 4-6,2-6 |
| ITF - M25 Naples | 2021/02/15 16:00 | Gomez, Alejandro v Stalder, Reese | 6-3,6-4 |
| ITF M15 Santo Domingo | 2020/12/10 13:30 | Nick Chappell v Stalder, Reese | 6-4,7-6 |