Stadium: Court 1 - Center Round: 25 Ground: Clay
| ITF M25 Muttenz | 2021/08/17 07:30 | Nicolas Parizzia v Francois Musitelli | 4-6,7-6,8-10 |
| ITF M25 Muttenz | 2021/08/16 09:55 | Nicolas Parizzia v Sami Ben Abdennibi | 4-6,6-2,10-7 |
| ITF M25 Velenje | 2021/07/06 08:00 | Domagoj Biljesko v Nicolas Parizzia | 6-3,7-5 |
| ITF M25 Velenje | 2021/07/05 09:50 | Lun Obrul v Nicolas Parizzia | 3-6,3-6 |
| ITF M25 Velenje | 2021/07/04 07:30 | Matic Dimic v Nicolas Parizzia | 3-6,4-6 |
| ITF M25 Klosters | 2021/06/21 09:05 | Edoardo Graziani v Nicolas Parizzia | 6-4,7-6 |
| ITF M25 Klosters | 2021/06/20 10:40 | Nicolas Affolter v Nicolas Parizzia | 6-7,6-2,9-11 |
| ITF M15 Antalya | 2021/06/03 07:30 | Nicolas Parizzia v Jakub Paul | 4-6,0-6 |
| ITF M25 Muttenz | 2021/08/18 15:00 | Rinky Hijikata v Gian Luca Tanner | 6-3,6-0 |
| ITF M25 Muttenz | 2021/08/17 12:00 | Gian Luca Tanner v Gabriele Moghini | 6-7,2-6 |
| ITF M25 Muttenz | 2021/08/16 14:20 | Gian Luca Tanner v Fynn Skender | 6-2,6-2 |
| ITF M25 Klosters | 2021/06/22 09:20 | Gian Luca Tanner v Lenny Hampel | 5-7,4-6 |
| ITF M25 Klosters | 2021/06/21 06:50 | Daniel Cukierman v Gian Luca Tanner | 6-3,6-4 |
| ITF M25 Klosters | 2021/06/20 07:00 | Gian Luca Tanner v Maik Steiner | 6-4,6-2 |
| ITF M15 Antalya | 2021/06/07 07:00 | Francisco Comesana v Gian Luca Tanner | 6-1,6-2 |
| ITF M15 Antalya | 2021/06/06 07:30 | Gian Luca Tanner v Caspar Schuetze | 1-6,6-4,10-4 |