Stadium: Center
| Challenger Houston | 2019/11/11 21:10 | Gage Brymer v Collin Altamirano | 2-6,6-7 |
| US Pro Tennis Series West Coast | 2020/06/06 21:15 | Dusty H. Boyer v Gage Brymer | 4-6,4-6 |
| US Pro Tennis Series West Coast | 2020/06/05 20:05 | Gage Brymer v Reese Stalder | 6-7,5-7 |
| US Pro Tennis Series West Coast | 2020/06/04 18:50 | Nick Chappell v Gage Brymer | 4-6,6-4,11-9 |
| US Pro Tennis Series West Coast | 2020/06/03 16:00 | Martin Redlicki v Gage Brymer | 6-7,1-6 |
| US Pro Tennis Series West Coast | 2020/06/02 19:30 | Gage Brymer v Raymond Sarmiento | 4-6,3-6 |
| US Pro Tennis Series West Coast | 2020/06/01 18:40 | Gage Brymer v Felix Corwin | 4-6,7-6,5-10 |
| Challenger Indian Wells | 2020/03/03 21:20 | Roberto Marcora v Gage Brymer | 6-4,6-3 |
| Challenger Indian Wells | 2020/03/02 18:00 | Gage Brymer v Hunter Reese | 6-4,6-2 |
| US Pro Tennis Series West Coast | 2020/06/09 17:40 | Brandon Holt v Collin Altamirano | 3-6,1-6 |
| US Pro Tennis Series West Coast | 2020/06/08 21:05 | Collin Altamirano v Christian Langmo | 6-3,1-6,6-10 |
| US Pro Tennis Series West Coast | 2020/06/07 16:00 | Collin Altamirano v Nick Chappell | 6-3,6-0 |
| Challenger Monterrey | 2020/03/03 23:20 | Jason Jung v Collin Altamirano | 7-6,6-7,7-6 |
| Challenger Monterrey | 2020/03/02 18:40 | Oscar Jose Gutierrez v Collin Altamirano | 3-6,4-6 |
| 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 |