Stadium: Center Court Round: 25 Ground: Grass
| ITF M15 Tbilisi | 2021/05/21 06:00 | Christian Sigsgaard v Benjamin Lock | 7-5,6-1 |
| ITF M15 Tbilisi | 2021/05/20 06:00 | Markos Kalovelonis v Benjamin Lock | 4-6,4-6 |
| ITF M15 Tbilisi | 2021/05/19 07:35 | Aliaksandr Liaonenka v Benjamin Lock | 3-6,3-6 |
| ITF M15 Monastir | 2021/05/13 10:30 | Benjamin Lock v Mattia Frinzi | 6-7,4-6 |
| ITF M15 Monastir | 2021/05/11 10:35 | Benjamin Lock v Bruno Nhavene | 6-3,6-2 |
| ITF M15 Monastir | 2021/05/06 10:45 | Gustavo Heide v Benjamin Lock | 6-1,7-5 |
| ITF M15 Monastir | 2021/05/05 08:30 | Yuta Kawahashi v Benjamin Lock | 3-6,6-2,4-6 |
| Challenger Salinas 2 | 2021/04/27 14:30 | Facundo Diaz Acosta v Benjamin Lock | 6-1,6-2 |
| ITF M15 Bucharest | 2021/05/23 15:00 | Simon Beaupain v Luigi Castelletti | 6-1,6-2 |
| ITF M15 Sibenik | 2021/05/16 07:30 | Adan Freire Da Silva v Luigi Castelletti | 4-6,6-4,10-3 |
| ITF M15 Valldoreix | 2021/05/09 12:00 | Nicolas Alvarez Varona v Luigi Castelletti | 6-2,7-6 |
| ITF M15 Sibenik | 2021/04/20 08:00 | Peter Goldsteiner v Luigi Castelletti | 7-5,1-6,12-10 |
| ITF M15 Sibenik | 2021/04/19 13:50 | Matthias Uwe Kask v Luigi Castelletti | 5-7,6-2,15-17 |
| ITF M15 Monastir | 2021/04/11 08:00 | Luigi Castelletti v Louis Allen | 4-6,6-2,3-10 |
| ITF M15 Monastir | 2021/04/04 09:00 | Luigi Castelletti v Michal Mikula | 3-6,6-7 |
| ITF M15 Monastir | 2021/03/14 11:00 | Luigi Castelletti v Yanais Laurent | 0-6,2-6 |