| ITF M15 Singapore | 08/06 06:34 | - | Kasidit Samrej v Guillermo Olaso | 6-3,6-4 | |
| ITF M15 Singapore | 08/04 06:09 | - | Guillermo Olaso v Keerthivassan Suresh | 6-1,6-0 | |
| ITF M15 Singapore | 08/03 10:14 | - | Guillermo Olaso v Andras Necz | 6-2,6-2 | |
| ITF M15 Singapore | 09/13 03:00 | 27 | Sanhui Shin v Guillermo Olaso | 6-2,6-2 | |
| ITF M15 Singapore | 09/12 05:25 | 26 | Guillermo Olaso v Leo Vithoontien | 6-2,0-6,6-4 | |
| ITF M15 Singapore | 09/11 05:05 | 25 | Credit Chaiyarin v Guillermo Olaso | 4-6,3-6 | |
| ITF M15 Singapore | 09/08 05:30 | 54 | Guillermo Olaso v Anirudh Rao | 6-1,6-2 | |
| ITF Cameroon F1 | 11/27 11:40 | 25 | Arpit Sharma v Guillermo Olaso | CANC | |
| ITF Finland F4 | 11/12 12:20 | 25 | Christopher Heyman v Guillermo Olaso | CANC | |
| ITF Mozambique F1 | 11/06 08:25 | 25 | Guillermo Olaso v Lluis Dolz | CANC | |
| ITF Vietnam F4 | 10/24 02:30 | 25 | Nitin Kumar Sinha v Guillermo Olaso | CANC | |
| ITF Spain F31 | 10/10 10:00 | 25 | Maxime Mora v Guillermo Olaso | CANC |