| German Premier League | 2020/07/27 17:05 | Paul Valsecchi v Johann Willems | 1-6,7-5,6-2 |
| ITF M15 Monastir | 2020/03/09 13:30 | Johann Willems v Paras Dahiya | 3-6,6-2,6-10 |
| ITF M15 Monastir | 2020/03/09 08:00 | Johann Willems v Lewie Lane | 6-4,6-4 |
| ITF M15 Monastir | 2020/03/08 08:00 | Adil Kalyanpur v Johann Willems | 2-6,2-6 |
| Challenger Koblenz | 2020/02/17 09:00 | Lucas Gerch v Johann Willems | 6-1,6-7,6-1 |
| ITF M25 Nussloch | 2020/01/20 09:00 | Robin Stanek v Johann Willems | 7-5,6-0 |
| ITF M25 Nussloch | 2020/01/19 09:00 | Flemming Peters v Johann Willems | 2-6,0-6 |
| ITF M15 Bad Salzdetfurth | 2019/10/08 11:00 | Jeremy Schifris v Johann Willems | 3-6,6-3,10-3 |
| ITF M15 Cordoba | 2021/04/08 13:00 | Benjamin Dhoe v Mariano Kestelboim | 2-6,1-6 |
| ITF M15 Cordoba | 2021/04/07 15:50 | Benjamin Dhoe v Lautaro Agustin Falabella | 6-4,3-6,6-3 |
| ITF M15 Villa Maria | 2021/04/01 15:30 | Mariano Kestelboim v Benjamin Dhoe | 6-3,6-3 |
| ITF M15 Villa Maria | 2021/03/31 16:40 | Benjamin Dhoe v Nicolas Alberto Arreche | 7-6,4-6,7-5 |
| ITF M15 Antalya | 2021/03/25 07:00 | Aleksandr Braynin v Benjamin Dhoe | 6-2,4-6,6-3 |
| UTR Pro Tennis Series Florida | 2021/03/14 13:00 | Benjamin Dhoe v Cristian C. Rodriguez Sanchez | 0-6,4-6 |
| UTR Pro Tennis Series Florida | 2021/03/12 17:00 | Benjamin Dhoe v Kiranpal Pannu | 6-3,5-2 |
| UTR Pro Tennis Series Florida | 2021/03/11 21:55 | Benjamin Dhoe v Murphy Cassone | 6-3,4-6,6-5 |