| ITF M15 Sharm El Sheikh | 2021/11/08 11:30 | Zachary Eisinga v Louis Allen | 5-7,7-5,8-10 |
| ITF M15 Sharm El Sheikh | 2021/11/07 17:00 | Zachary Eisinga v Danyil Chornous | 6-1,6-2 |
| ITF M15 Sharm El Sheikh | 2021/11/03 11:30 | Zachary Eisinga v Mason Recci | 4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/11/02 07:30 | Zachary Eisinga v Abdulhamid Mubarak | 6-2,7-5 |
| ITF M15 Sharm El Sheikh | 2021/11/01 07:00 | Zachary Eisinga v Sebastian Sorger | 6-4,6-1 |
| ITF M15 Sharm El Sheikh | 2021/10/31 08:00 | Zachary Eisinga v Bogdan Seleznev | 6-3,6-0 |
| ITF M15 Cairo | 2021/09/30 11:45 | Luciano Darderi v Zachary Eisinga | 6-2,6-0 |
| ITF M15 Cairo | 2021/09/29 08:45 | Zachary Eisinga v Amr Asrawy | 6-0,6-1 |
| ITF M15 Heraklion | 2021/11/29 10:00 | Preston Brown v Jurriaan Bol | 6-3,7-6 |
| ITF M15 Heraklion | 2021/11/28 11:00 | Eduardo Cohen v Jurriaan Bol | 7-5,1-6,6-10 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 12:01 | Thijmen Loof v Jurriaan Bol | 2-6,3-5 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 08:30 | Alen Moritz Hodzic v Jurriaan Bol | 2-6,2-6 |
| UTR Pro Tennis Series Mulheim | 2021/09/24 08:00 | Christos Keisidis v Jurriaan Bol | 1-6,4-6 |
| UTR Pro Tennis Series Mulheim | 2021/09/23 11:00 | Colin Sinclair v Jurriaan Bol | 6-3,6-3 |
| UTR Pro Tennis Series Mulheim | 2021/09/22 12:30 | Edison Ambarzumjan v Jurriaan Bol | 6-4,2-6,2-6 |
| UTR Pro Tennis Series Mulheim | 2021/09/20 09:30 | Artem Podorozhnyi v Jurriaan Bol | 7-6,5-3 |