Stadium: Court 4 Round: 28 Ground: Hardcourt indoor
| ITF M15 St Petersburg MD | 2021/04/08 11:00 | Paul J / Steinegger Y v Binda/Minin | 6-0,6-2 |
| ITF M15 St Petersburg MD | 2021/04/07 10:55 | Altuna/Kravchuk v Paul J / Steinegger Y | 6-3,3-6,6-10 |
| ITF M25 Biel MD | 2021/04/02 15:05 | Erler/Neuchrist v Paul J / Steinegger Y | 6-3,4-6,10-2 |
| ITF M25 Biel MD | 2021/04/02 13:30 | Paul J / Steinegger Y v Lehecka/Vrbensky | 7-5,6-4 |
| ITF M25 Biel MD | 2021/03/31 17:15 | Paul J / Steinegger Y v Martinez M / Nikles J | 6-4,6-3 |
| ITF - M25 Trimbach - Doubles Hommes | 2021/03/13 15:15 | Paul J / Steinegger Y v Ejupovic/Erler | 6-3,7-5 |
| ITF - M25 Trimbach - Doubles Hommes | 2021/03/12 14:35 | Brunold/Sebesta v Paul J / Steinegger Y | 0-6,2-6 |
| ITF - M25 Trimbach - Doubles Hommes | 2021/03/11 16:00 | Paul J / Steinegger Y v Lanz M / Schaer J | 4-6,6-4,10-5 |