Stadium: IWB Court 1 Round: 26 Ground: Hardcourt indoor
| ITF M25 Klosters MD | 2021/06/26 12:00 | Fallert F / Moreno de Alboran N v Riedi L / Stricker D S | 4-6,7-6,10-6 |
| ITF M25 Klosters MD | 2021/06/25 12:00 | Staeheli/Tanner v Riedi L / Stricker D S | 3-6,6-4,5-10 |
| ITF M25 Klosters MD | 2021/06/24 14:30 | Cukierman/Ionel v Riedi L / Stricker D S | 2-6,4-6 |
| ITF M25 Klosters MD | 2021/06/22 13:40 | Riedi L / Stricker D S v Paul J / Steinegger Y | 7-5,6-2 |
| ITF M15 Majadahonda MD | 2021/05/07 13:15 | Barroso Campos A / Nikles J v Riedi L / Stricker D S | 6-2,2-6,10-12 |
| ITF M15 Majadahonda MD | 2021/05/06 12:30 | Riedi L / Stricker D S v Borges/Cabral | 7-5,6-4 |
| ITF M15 Majadahonda MD | 2021/05/05 13:00 | D Acosta/Otegui v Riedi L / Stricker D S | 2-6,4-6 |
| ITF M15 Majadahonda MD | 2021/05/04 13:40 | Riedi L / Stricker D S v Martineau M / Reymond A | 6-4,7-6 |