| UTR Pro Tennis Series Blaricum | 2022/04/04 08:00 | Eisinga, Zachary v Alen Moritz Hodzic | 6-4,6-3 |
| UTR Pro Tennis Series Blaricum | 2022/04/03 12:30 | Eisinga, Zachary v Twan Van Zijl | 7-6,6-4 |
| UTR Pro Tennis Series Amsterdam | 2022/03/06 10:30 | Jesse De Jager v Eisinga, Zachary | 6-1,4-6,5-0 |
| UTR Pro Tennis Series Amsterdam | 2022/03/05 13:30 | Miko Wassermann v Eisinga, Zachary | 1-6,0-6 |
| UTR Pro Tennis Series Amsterdam | 2022/03/04 12:00 | Bielinskyi, Oleksandr v Eisinga, Zachary | 4-6,3-5 |
| UTR Pro Tennis Series Amsterdam | 2022/03/03 12:00 | Rob Van Den Berg v Eisinga, Zachary | 7-6,3-6,6-7 |
| UTR Pro Tennis Series Amsterdam | 2022/03/01 10:30 | Marcel Zielinski v Eisinga, Zachary | 7-6,7-5 |
| UTR Pro Tennis Series Amsterdam | 2022/02/28 09:00 | Eisinga, Zachary v Yanais Laurent | 4-6,6-4,7-6 |
| UTR Pro Tennis Series Blaricum | 2022/04/04 13:30 | Twan Van Zijl v Koch, Niklas | 6-1,6-1 |
| UTR Pro Tennis Series Amsterdam | 2022/03/05 12:00 | Rojas, O. v Koch, Niklas | 3-6,6-1,5-4 |
| UTR Pro Tennis Series Amsterdam | 2022/03/04 09:00 | Jurriaan Bol v Koch, Niklas | 6-4,1-6,6-3 |
| UTR Pro Tennis Series Amsterdam | 2022/03/03 15:05 | Teun Rozenberg v Koch, Niklas | 2-6,4-6 |
| UTR Pro Tennis Series Amsterdam | 2022/03/01 10:30 | Dhoe, Benjamin v Koch, Niklas | 6-4,6-4 |
| UTR Pro Tennis Series Amsterdam | 2022/02/28 12:00 | Koch, Niklas v Max Houkes | 2-6,2-6 |
| UTR Pro Tennis Series Amsterdam | 2021/12/11 07:00 | van Baal, Aloys Johannes Willem v Koch, Niklas | 6-4,6-4 |
| UTR Pro Tennis Series Amsterdam | 2021/12/10 08:30 | Deney Wassermann v Koch, Niklas | 6-2,6-3 |