Stadium: TVM Court (3) Round: 25 Ground: Hardcourt outdoor
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/21 08:00 | Louis Wessels v Simon Beaupain | 7-5,1-6,5-7 |
| ITF M25 Meerbusch | 2021/04/14 10:00 | Louis Wessels v Niels Visker | 2-6,2-6 |
| ITF - M25 Naples | 2021/02/25 18:10 | Hidalgo, Diego v Louis Wessels | 6-2,6-4 |
| ITF - M25 Naples | 2021/02/24 18:45 | Louis Wessels v Fratangelo, Bjorn | 6-7,7-5,6-4 |
| ITF - M25 Naples | 2021/02/18 16:50 | Louis Wessels v Redlicki, Michael | 2-6,0-6 |
| ITF - M25 Naples | 2021/02/17 15:00 | Louis Wessels v Scott, Fletcher | 6-2,6-4 |
| ITF - M15 Monastir | 2021/02/03 08:30 | Louis Wessels v Benjamin Pietri | 4-6,2-6 |
| German Masters | 2020/08/06 15:00 | Walder, Jim v Louis Wessels | 4-6,1-6 |
| ITF M15 Troisdorf | 2021/05/11 08:00 | Smits, Glenn v Marlon Vankan | 3-6,6-4,10-8 |
| ITF M15 Troisdorf | 2021/05/10 09:30 | Smits, Glenn v Patzanovsky, Christopher | 6-3,5-7,10-4 |
| ITF M15 Troisdorf | 2021/05/09 08:00 | Giacalone, Omar v Smits, Glenn | 4-6,6-4,7-10 |
| ITF M15 St Petersburg | 2021/04/11 07:00 | Stepan Pecak v Smits, Glenn | 6-3,6-1 |
| ITF M15 St Petersburg | 2021/04/04 08:20 | Smits, Glenn v Alexandr Binda | 6-4,5-7,8-10 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2020/08/16 12:00 | Gijs Brouwer v Smits, Glenn | 6-0,6-1 |
| ITF - M15 Sharm El Sheikh | 2020/02/27 08:00 | Karim-Mohamed Maamoun v Smits, Glenn | 6-1,6-2 |
| ITF - M15 Sharm El Sheikh | 2020/02/26 08:00 | Smits, Glenn v Khomich, Aleksei | 7-6,7-6 |