Estadio: Court 3 Round: 26 Ground: Clay
| ITF M15 El Cairo | 2021/09/15 11:10 | Simone Roncalli v Louis Tessa | 3-6,7-6,6-0 |
| ITF M15 Huy | 2021/08/25 11:00 | Simon Beaupain v Simone Roncalli | 6-3,6-2 |
| ITF M15 Oldenzaal | 2021/08/18 08:00 | Simone Roncalli v Sander Jong | 4-6,3-6 |
| ITF M15 Parnu | 2021/08/07 09:30 | Ergi Kirkin v Simone Roncalli | 6-1,6-2 |
| ITF M15 Parnu | 2021/08/06 11:00 | Yan Sabanin v Simone Roncalli | 1-6,4-6 |
| ITF M15 Parnu | 2021/08/05 07:00 | Peter Goldsteiner v Simone Roncalli | 5-7,0-6 |
| ITF M15 Parnu | 2021/08/04 06:50 | Manfred Fellin v Simone Roncalli | 0-6,0-6 |
| ITF M25 Casinalbo | 2021/07/07 18:30 | Nikolas Sanchez Izquierdo v Simone Roncalli | 3-6,6-3,6-2 |
| ITF M15 El Cairo | 2021/09/15 10:40 | Gabriel Ciro Da Silva v Zachary Eisinga | 7-6,4-6,2-6 |
| ITF M15 Huy | 2021/08/25 12:50 | Zachary Eisinga v Marvin Netuschil | 4-6,6-7 |
| ITF M15 Oldenzaal | 2021/08/18 14:10 | Constantin Schmitz v Zachary Eisinga | 6-3,7-6 |
| ITF M15 Oldenzaal | 2021/08/16 10:00 | Zachary Eisinga v Aloys J W Van Baal | 3-6,6-4,10-7 |
| ITF M15 Oldenzaal | 2021/08/15 07:30 | Zachary Eisinga v Flemming Peters | 6-0,6-3 |
| ITF M25 The Hague | 2021/06/27 08:00 | Dax Donders v Zachary Eisinga | 6-2,7-5 |
| ITF M25 Alkmaar | 2021/06/21 14:25 | Guillaume Dermiens v Zachary Eisinga | 4-6,7-5,13-11 |
| ITF M25 Alkmaar | 2021/06/20 12:30 | Lodewijk Weststrate v Zachary Eisinga | 2-6,1-6 |