[338] Stefan Kozlov 4-6,6-7 Roberto Quiroz [182] 2019-02-21 17:00
Stadium: Estadio Round: 26 Ground: Hardcourt outdoor
Head to Head
| Challenger Tempe | 2017/02/15 17:30 | Roberto Quiroz v Stefan Kozlov | 4-6,6-7 |
Home History
| Challenger Morelos | 2019/02/18 16:00 | Evan Song v Stefan Kozlov | 5-7,3-6 |
| Challenger Dallas | 2019/02/05 20:30 | Alex Rybakov v Stefan Kozlov | 6-2,6-1 |
| Challenger Cleveland | 2019/01/30 16:25 | Brayden Schnur v Stefan Kozlov | 7-6,6-4 |
| Challenger Cleveland | 2019/01/28 20:25 | Louis Wessels v Stefan Kozlov | 4-6,7-5,5-7 |
| Challenger Newport Beach | 2019/01/21 18:00 | Stefan Kozlov v Maxime Cressy | 5-7,1-6 |
| Challenger Columbus | 2019/01/07 19:00 | Jeffrey John Wolf v Stefan Kozlov | 6-2,7-6 |
| Challenger Orlando | 2019/01/03 19:20 | Nino Serdarusic v Stefan Kozlov | 6-2,7-5 |
| Challenger Orlando | 2019/01/02 20:20 | Stefan Kozlov v Mitchell Krueger | 6-2,5-7,6-3 |
Away History
| 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 |