Stadium: Court 1 Round: 28 Ground: Clay
| ITF M25 - Sierre - Herrdubbel | 2021/09/01 16:20 | Paul/Steinegger v Arnaldi/Maggioli | 6-4,6-2 |
| ITF M25 - Klosters - Herrdubbel | 2021/06/22 13:40 | Riedi/Stricker v Paul/Steinegger | 7-5,6-2 |
| ITF M15 - St Petersburg - Herrdubbel | 2021/04/16 10:10 | Paul/Steinegger v Cozbinov/Freund | 6-4,3-6,9-11 |
| ITF M15 - St Petersburg - Herrdubbel | 2021/04/15 12:05 | Borisiouk/Liaonenka v Paul/Steinegger | 3-6,6-4,7-10 |
| ITF M15 - St Petersburg - Herrdubbel | 2021/04/09 12:20 | Paul/Steinegger v Cozbinov/Freund | 6-7,2-6 |
| ITF M15 - St Petersburg - Herrdubbel | 2021/04/08 11:00 | Paul/Steinegger v Binda/Minin | 6-0,6-2 |
| ITF M15 - St Petersburg - Herrdubbel | 2021/04/07 10:55 | Altuna/Kravchuk v Paul/Steinegger | 6-3,3-6,6-10 |
| ITF M25 - Biel - Herrdubbel | 2021/04/02 15:05 | Erler/Neuchrist v Paul/Steinegger | 6-3,4-6,10-2 |
| ITF M25 - Sierre - Herrdubbel | 2021/09/01 11:00 | Echargui/Martinez v Langmo/Potenza | 3-6,6-3,10-12 |
| ITF M25 - Sierre - Herrdubbel | 2021/08/31 16:05 | Langmo/Potenza v Schiavetti/Yunis | 7-6,7-5 |