Stadium: Court 1 Round: 29 Ground: Hardcourt indoor
| ITF M25 Biel MD | 2021/04/02 12:00 | Andreev/Mochizuki v Erler/Neuchrist | 2-6,1-6 |
| ITF M25 Biel MD | 2021/04/01 14:15 | Erler/Neuchrist v Ehrat/Kym | 6-4,7-6 |
| ITF M25 Biel MD | 2021/03/30 12:50 | Erler/Neuchrist v Escoffier/Leshem | 6-1,6-2 |
| ITF M25 Biel MD | 2021/04/02 13:30 | Paul/Steinegger v Lehecka/Vrbensky | 7-5,6-4 |
| ITF M25 Biel MD | 2021/03/31 17:15 | Paul/Steinegger v Martinez/Nikles | 6-4,6-3 |
| ITF M25 Trimbach MD | 2021/03/13 15:15 | Paul/Steinegger v Ejupovic/Erler | 6-3,7-5 |
| ITF M25 Trimbach MD | 2021/03/12 14:35 | Brunold/Sebesta v Paul/Steinegger | 0-6,2-6 |
| ITF M25 Trimbach MD | 2021/03/11 16:00 | Paul/Steinegger v Lanz/Schaer | 4-6,6-4,10-5 |
| ITF M25 Trimbach MD | 2021/03/10 15:00 | Paul/Steinegger v Lane/Moeller | 7-5,6-7,11-9 |
| ITF M15 Grenoble MD | 2021/02/12 15:10 | Paul/Steinegger v Castelnuovo/Stricker | 7-5,6-1 |
| ITF M15 Grenoble MD | 2021/02/11 12:55 | Paul/Steinegger v Poullain/Stouff | 6-1,1-6,10-6 |