Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Challenger - Pune | 2018/11/20 09:50 | Collin Altamirano v Lucas Gerch | 3-6,1-6 |
| Challenger Bangalore | 2018/11/13 05:30 | Collin Altamirano v Mukund Sasikumar | 6-7,3-6 |
| Challenger Charlottesville | 2018/10/30 22:10 | Marcos Giron v Collin Altamirano | 6-4,6-4 |
| Challenger Calgary | 2018/10/18 01:20 | Collin Altamirano v Filip Peliwo | 7-5,6-7,1-6 |
| Challenger Calgary | 2018/10/15 18:40 | Jay Clarke v Collin Altamirano | 5-7,0-6 |
| Challenger Fairfield | 2018/10/10 22:20 | Alex Bolt v Collin Altamirano | 7-6,6-7,7-6 |
| Challenger Stockton | 2018/09/29 22:20 | Collin Altamirano v Isaiah Strode | 4-6,0-6 |
| US Open, New York, USA | 2018/08/27 16:30 | Collin Altamirano v Ugo Humbert | 3-6,6-7,3-6 |
| Newport Beach, USA | 2019/01/22 18:00 | Thai-Son Kwiatkowski v Estrella Burgos, Victor | 3-6,4-6 |
| Santo Domingo, Dominican Republic | 2018/10/10 00:20 | Estrella Burgos, Victor v Delbonis, Federico | 5-7,3-6 |
| Monterrey, Mexico | 2018/10/02 02:40 | Nino Serdarusic v Estrella Burgos, Victor | 6-3,6-1 |
| Challenger Chicago | 2018/09/05 15:00 | Alexei Popyrin v Estrella Burgos, Victor | 6-3,7-5 |
| US Open, New York, USA | 2018/08/24 16:40 | Estrella Burgos, Victor v Stefano Travaglia | 4-6,0-6 |
| US Open, New York, USA | 2018/08/23 19:15 | Estrella Burgos, Victor v Fratangelo, Bjorn | 7-6,6-3 |
| US Open, New York, USA | 2018/08/21 19:50 | Zopp, Jurgen v Estrella Burgos, Victor | 3-6,1-6 |
| Newport, USA | 2018/07/17 16:55 | Ramkumar Ramanathan v Estrella Burgos, Victor | 6-4,6-1 |