Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Santander | 2021/08/22 11:30 | Inigo G Olasagasti v George Davies | 1-6,4-6 |
| ITF M15 Xativa | 2021/08/03 09:00 | Inigo G Olasagasti v Fermin Tenti | 0-6,0-6 |
| ITF M15 Monastir | 2021/07/25 12:00 | Inigo G Olasagasti v Davide Innocenti | 4-6,4-6 |
| ITF M15 Monastir | 2021/07/19 09:00 | Inigo G Olasagasti v Leonardo L Linquet | 0-6,1-6 |
| ITF M15 Antalya | 2021/06/28 11:55 | Stefanos Sakellaridis v Inigo G Olasagasti | 6-3,6-4 |
| ITF M15 Antalya | 2021/06/27 06:30 | Inigo G Olasagasti v Petr Bar Biryukov | 7-6,1-6,10-5 |
| ITF M15 Antalya | 2021/06/20 07:00 | Kenneth Raisma v Inigo G Olasagasti | 6-4,6-3 |
| ITF M15 Marbella | 2021/05/23 08:00 | Inigo G Olasagasti v Jose Joaquin M Cisneros | 3-6,1-6 |