Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Madrid | 2021/10/24 12:00 | Garmendia Olasagasti, Inigo v Sami Ben Abdennibi | 2-6,3-6 |
| ITF M15 Melilla | 2021/09/21 09:30 | Aaron Cohen v Garmendia Olasagasti, Inigo | 6-3,4-6,10-8 |
| ITF M25 Madrid | 2021/09/13 09:00 | Enzo Wallart v Garmendia Olasagasti, Inigo | 6-0,6-3 |
| ITF M25 Bagneres-De-Bigorre | 2021/08/29 11:00 | Maxence Rivet v Garmendia Olasagasti, Inigo | 6-3,6-4 |
| ITF M25 Santander | 2021/08/22 11:30 | Garmendia Olasagasti, Inigo v Davies, George | 1-6,4-6 |
| ITF M15 Xativa | 2021/08/03 09:00 | Garmendia Olasagasti, Inigo v Fermin Tenti | 0-6,0-6 |
| ITF - M15 Monastir | 2021/07/25 12:00 | Garmendia Olasagasti, Inigo v Innocenti, Davide | 4-6,4-6 |
| ITF - M15 Monastir | 2021/07/19 09:00 | Garmendia Olasagasti, Inigo v Lopez Linquet, Leonardo | 0-6,1-6 |
| ITF M25 Bakio | 2021/06/27 14:00 | Riva, Pablo v Oswald, Jack | 6-3,6-2 |
| ITF M25 Bakio | 2019/07/01 11:45 | Riva, Pablo v Barranco, Sergio | 4-6,1-6 |