Stadium: Court 1 Round: 62 Ground: Clay
| ITF M15 Oldenzaal | 2021/08/16 10:00 | Eisinga, Zachary v van Baal, Aloys Johannes Willem | 3-6,6-4,10-7 |
| ITF M15 Oldenzaal | 2021/08/15 07:30 | Eisinga, Zachary v Peters, Flemming | 6-0,6-3 |
| ITF M25 The Hague | 2021/06/27 08:00 | Dax Donders v Eisinga, Zachary | 6-2,7-5 |
| ITF M25 Alkmaar | 2021/06/21 14:25 | Dermiens, Guillaume v Eisinga, Zachary | 4-6,7-5,13-11 |
| ITF M25 Alkmaar | 2021/06/20 12:30 | Lodewijk Weststrate v Eisinga, Zachary | 2-6,1-6 |
| ITF M15 Cairo | 2021/05/04 08:00 | Eisinga, Zachary v Dimitrov, Martin | 1-6,6-7 |
| ITF M15 Cairo | 2021/05/03 08:00 | Eisinga, Zachary v Ali Alshati | 3-6,6-0,10-8 |
| ITF M15 Cairo | 2021/04/28 10:00 | Eisinga, Zachary v Shintaro Mochizuki | 4-6,2-6 |
| ITF M15 Oldenzaal | 2021/08/16 10:00 | Caspar Schuetze v Dijkhuizen, Marc | 6-7,4-6 |
| ITF M15 Alkmaar | 2020/08/25 16:15 | Arthur Cazaux v Dijkhuizen, Marc | 6-4,6-1 |
| ITF - M15 Antalya | 2019/12/13 06:30 | Alejo Lorenzo Lingua Lavallen v Dijkhuizen, Marc | 7-6,6-2 |
| ITF - M15 Antalya | 2019/12/10 10:00 | Suntic, Sabit v Dijkhuizen, Marc | 2-6,4-6 |
| Antalya, Qualifications Simples M-ITF-TUR-33A | 2019/12/09 09:30 | Gusev, Daniil v Dijkhuizen, Marc | 3-6,5-7 |
| Antalya, Qualifications Simples M-ITF-TUR-33A | 2019/12/08 09:30 | Stefanos Sakellaridis v Dijkhuizen, Marc | 3-6,2-6 |
| ITF - M15 Antalya | 2019/12/05 07:00 | Dijkhuizen, Marc v Mate Valkusz | 6-3,2-6,2-6 |
| ITF - M15 Antalya | 2019/12/04 10:45 | Saba Purtseladze v Dijkhuizen, Marc | 3-6,1-6 |