| UTR Pro Dubaï | 2023/02/03 06:30 | Willems, Johann v Lohithaksha Bathrinath | 4-6,5-7 |
| UTR Pro Dubaï | 2023/02/02 06:30 | Willems, Johann v Kai Lemstra | 2-6,1-6 |
| UTR Pro Dubaï | 2023/02/01 05:00 | David Pichler v Willems, Johann | 6-3,7-5 |
| UTR Pro Dubaï | 2023/01/31 09:15 | Sylvester Emmanuel v Willems, Johann | 3-6,1-6 |
| UTR Pro Tennis Series Mulheim | 2022/10/03 11:00 | Pierre, Hugo v Willems, Johann | 7-6,1-0 |
| UTR Pro Tennis Series Mulheim | 2022/07/03 07:30 | Willems, Johann v Francisco Rocha | 3-6,1-3 |
| UTR Pro Tennis Series Mulheim | 2022/07/02 07:30 | Willems, Johann v Tom Gentzsch | 6-1,6-6 |
| UTR Pro Tennis Series Mulheim | 2022/07/01 06:00 | Willems, Johann v Calvo Barcelo, Fermin | 5-7,6-4,6-6 |
| UTR Pro Dubaï | 2023/02/03 05:00 | Rieder, Horst v Valentin Vanta | 1-6,3-6 |
| UTR Pro Dubaï | 2023/02/01 09:10 | Rieder, Horst v Mikalai Haliak | 2-6,0-6 |
| UTR Pro Dubaï | 2023/01/31 08:30 | Rieder, Horst v Dzhavakian, Yurii | 6-4,0-6,3-6 |
| UTR Pro Tennis Series Dubai | 2022/12/10 05:00 | Michalis Sakellaridis v Rieder, Horst | 6-1,6-0 |
| UTR Pro Tennis Series Dubai | 2022/12/09 06:30 | Marshall Tutu v Rieder, Horst | 6-2,6-2 |
| UTR Pro Tennis Series Dubai | 2022/12/08 06:30 | Gergely Madarasz v Rieder, Horst | 6-4,6-2 |
| UTR Pro Tennis Series Dubai | 2022/12/07 08:54 | Andres Gabriel Ciurletti v Rieder, Horst | 6-1,6-2 |
| UTR Pro Tennis Series Dubai | 2022/12/05 06:30 | Karlo Cubelic v Rieder, Horst | 6-2,6-3 |