Stadium: Court 2 Round: 27 Ground: Grass
| ITF M15 Gaiba | 2021/06/10 08:30 | Benjamin Lock v Luciano Darderi | 6-3,7-5 |
| ITF M15 Gaiba | 2021/06/09 12:50 | Benjamin Lock v Luigi Castelletti | 6-1,6-3 |
| 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 Gaiba | 2021/06/10 14:45 | Federico Bertuccioli v Tobias Simon | 4-6,3-6 |
| ITF M15 Gaiba | 2021/06/09 15:55 | Andrea Picchione v Tobias Simon | 5-7,7-6,5-7 |
| ITF M15 Sarajevo | 2021/06/02 10:40 | Tobias Simon v Federico Iannaccone | 1-6,3-6 |
| ITF M25 Meerbusch | 2021/04/15 13:25 | Tobias Simon v Tim Handel | 4-6,6-7 |
| ITF M25 Meerbusch | 2021/04/14 12:25 | Sebastian Prechtel v Tobias Simon | 5-7,6-3,3-6 |
| Challenger Lille | 2021/03/21 13:55 | Tobias Simon v Edan Leshem | 2-6,6-7 |
| ITF M15 Sharm El Sheikh | 2021/02/10 11:15 | Tobias Simon v Marek Gengel | 5-7,4-6 |
| ITF M15 Sharm El Sheikh | 2021/02/04 10:10 | Tobias Simon v Marko Tepavac | 4-6,2-6 |