Estádio: Court 5 Round: 28 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/03/26 08:30 | Jordan Correia v Lucas Catarina | 2-6,4-6 |
| ITF - M15 Monastir | 2021/03/25 08:30 | Luca Potenza v Lucas Catarina | 4-6,4-6 |
| ITF - M15 Monastir | 2021/03/24 11:45 | Olivier Rojas v Lucas Catarina | 1-6,0-6 |
| Challenger - Cleveland | 2021/03/17 14:00 | Yosuke Watanuki v Lucas Catarina | 6-3,5-7,6-1 |
| Challenger - Cleveland | 2021/03/15 23:25 | Lucas Catarina v Mikael Torpegaard | 5-7,6-3,6-4 |
| Challenger - Biella | 2021/03/07 14:40 | Lucas Catarina v Ryan Peniston | 2-6,7-5,3-6 |
| Challenger - São Petersburgo | 2021/03/05 12:05 | Zizou Bergs v Lucas Catarina | 6-3,6-4 |
| Challenger - São Petersburgo | 2021/03/04 10:45 | Matthew Ebden v Lucas Catarina | 6-7,2-6 |
| ITF - M15 Monastir | 2021/03/26 08:30 | Christian Langmo v Colin Sinclair | 6-4,3-6,2-6 |
| ITF - M15 Monastir | 2021/03/25 08:30 | Colin Sinclair v Laurent Lokoli | 6-3,6-2 |
| ITF - M15 Monastir | 2021/03/24 10:55 | Colin Sinclair v Fausto Tabacco | 6-1,6-0 |
| ITF - M15 Monastir | 2021/03/18 08:25 | Colin Sinclair v Alexander Kotzen | 5-7,5-7 |
| ITF - M15 Monastir | 2021/03/17 12:55 | Jordan Correia v Colin Sinclair | 3-6,2-6 |
| ITF - M15 Monastir | 2021/03/08 18:30 | Colin Sinclair v Giorgio Tabacco | 6-7,6-0,8-10 |
| ITF - M15 Monastir | 2021/03/08 13:30 | Colin Sinclair v Luca Castagnola | 6-3,6-4 |
| ITF - M15 Monastir | 2021/03/07 08:00 | Colin Sinclair v Jamie Krattiger | 6-1,6-1 |