Stadium: Court Central Round: 25 Ground: Hardcourt indoor
| Challenger Puerto Vallarta | 2018/05/01 17:00 | Evan Song v Roberto Quiroz | 6-7,3-6 |
| ATP Los Cabos Qual | 2017/07/30 01:15 | Evan Song v Roberto Quiroz | 6-2,6-2 |
| Challenger Morelos | 2019/02/19 17:20 | Joao Souza v Roberto Quiroz | 4-6,0-6 |
| ATP New York | 2019/02/10 19:45 | Tim Smyczek v Roberto Quiroz | 6-7,6-3,7-5 |
| Challenger Dallas | 2019/02/06 18:55 | Jared Hiltzik v Roberto Quiroz | 6-2,4-6,6-0 |
| Challenger Cleveland | 2019/01/31 17:50 | Jared Hiltzik v Roberto Quiroz | 6-4,6-2 |
| Challenger Cleveland | 2019/01/30 16:30 | Kevin King v Roberto Quiroz | 1-6,6-4,3-6 |
| Challenger Newport Beach | 2019/01/24 20:00 | Taylor Fritz v Roberto Quiroz | 6-3,6-3 |
| Challenger Newport Beach | 2019/01/23 18:00 | Christian Harrison v Roberto Quiroz | 6-7,2-6 |
| Challenger Knoxville | 2018/11/08 00:30 | Roberto Quiroz v Blaz Rola | 6-7,4-6 |
| Challenger Morelos | 2019/02/18 16:00 | Evan Song v Stefan Kozlov | 5-7,3-6 |
| Challenger Dallas | 2019/02/04 20:15 | Evan King v Evan Song | 6-4,6-4 |
| Challenger Cleveland | 2019/01/28 16:30 | Ulises Blanch v Evan Song | 7-6,7-5 |
| Challenger Newport Beach | 2019/01/22 19:45 | Evan Song v Kaichi Uchida | 6-7,2-6 |
| Challenger Newport Beach | 2019/01/21 19:45 | Evan Song v Alafia Ayeni | 6-7,6-3,6-4 |
| Challenger Da Nang | 2019/01/07 04:25 | Evan Song v Yan Bai | 4-6,4-6 |
| Challenger Orlando | 2019/01/03 17:15 | Evan Song v Norbert Gombos | 7-6,5-7,6-7 |
| Challenger Orlando | 2019/01/01 20:50 | Benjamin Bonzi v Evan Song | 2-6,4-6 |