Stadium: Court 3 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Tbilisi | 2021/05/20 06:00 | Christian Sigsgaard v Yurii Dzhavakian | 6-2,6-4 |
| ITF M15 Tbilisi | 2021/05/19 07:25 | Sanjar Fayziev v Christian Sigsgaard | 4-6,3-6 |
| ITF M15 Tbilisi | 2021/05/17 06:00 | Piotr Grynkowski v Christian Sigsgaard | 3-6,3-6 |
| ITF M15 Tbilisi | 2021/05/17 05:30 | Charles Minc v Christian Sigsgaard | 4-6,3-6 |
| ITF M15 Sibenik | 2021/04/22 08:00 | Christian Sigsgaard v David Pichler | 2-6,5-7 |
| ITF M15 Sibenik | 2021/04/21 10:30 | Ugo Blanchet v Christian Sigsgaard | 2-6,0-6 |
| ITF M15 Sibenik | 2021/04/20 08:00 | Domagoj Biljesko v Christian Sigsgaard | 6-1,6-7,4-10 |
| ITF M15 Sibenik | 2021/04/19 08:00 | Christian Sigsgaard v Neil Oberleitner | 7-6,6-4 |
| 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 |
| Challenger Salinas 2 | 2021/04/26 14:30 | Jorge Panta v Benjamin Lock | 4-6,6-7 |