Stadium: Cancha 3 Round: 24 Ground: Hardcourt outdoor
| Challenger Morelos | 2020/02/19 02:55 | Oscar Jose Gutierrez v Thomaz Bellucci | 6-4,3-6,2-6 |
| ITF M25 Lima | 2020/02/11 16:30 | Oscar Jose Gutierrez v Nicolas Alberto Arreche | 6-7,6-3,3-6 |
| ITF M25 Lima | 2020/02/04 14:50 | Oscar Jose Gutierrez v Matias Zukas | 6-7,3-6 |
| Challenger Punta del Este | 2020/01/27 17:45 | Oscar Jose Gutierrez v Mariano Kestelboim | 4-6,6-3,5-7 |
| Challenger Montevideo | 2019/11/05 16:15 | Genaro Alberto Olivieri v Oscar Jose Gutierrez | 5-7,6-3,6-4 |
| Challenger Guayaquil | 2019/10/30 23:15 | Jaume Munar v Oscar Jose Gutierrez | 6-4,6-2 |
| Challenger Guayaquil | 2019/10/28 18:15 | Pedro Sakamoto v Oscar Jose Gutierrez | 6-3,6-7,4-6 |
| Challenger Lima | 2019/10/23 00:55 | Oscar Jose Gutierrez v Yannick Hanfmann | 3-6,3-6 |
| Challenger Calgary | 2020/02/26 20:40 | Collin Altamirano v Arthur Rinderknech | 6-3,3-6,3-6 |
| Challenger Calgary | 2020/02/24 17:40 | Collin Altamirano v Fabrizio Ornago | 6-3,7-6 |
| Challenger Morelos | 2020/02/17 18:05 | Collin Altamirano v Matias Franco Descotte | 3-6,5-7 |
| Challenger Cleveland | 2020/02/10 23:00 | Ryan Harrison v Collin Altamirano | 6-4,7-6 |
| Challenger Newport Beach | 2020/01/27 21:35 | Collin Altamirano v Thai-Son Kwiatkowski | 1-6,3-6 |
| ITF M25 Rancho Santa Fe | 2020/01/17 18:45 | Collin Altamirano v Geoffrey Blancaneaux | 0-6,7-6,5-7 |
| ITF M25 Rancho Santa Fe | 2020/01/16 18:00 | Collin Altamirano v Sebastian Fanselow | 6-1,6-1 |
| ITF M25 Rancho Santa Fe | 2020/01/15 17:30 | Collin Altamirano v Lucas Gomez | 6-0,2-6,6-2 |