[242] Christian Harrison 6-7,2-6 Roberto Quiroz [181] 2019-01-23 18:00
Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
Home History
| Challenger Newport Beach | 2019/01/22 00:00 | Christian Harrison v Jan Choinski | 6-2,6-7,6-4 |
| Australian Open | 2019/01/09 06:30 | Christian Harrison v Adrian Menendez-Maceiras | 4-6,6-2,4-6 |
| Challenger Noumea | 2018/12/31 03:40 | Christian Harrison v Viktor Galovic | 3-6,4-6 |
| Challenger Knoxville | 2018/11/07 19:30 | Peter Polansky v Christian Harrison | 6-2,6-2 |
| US Open | 2018/08/23 15:00 | Pedro Martinez v Christian Harrison | 1-6,7-6,6-3 |
| US Open | 2018/08/21 18:10 | Christian Harrison v Ernests Gulbis | 3-6,6-2,6-4 |
| ATP Cincinnati Qual | 2018/08/11 21:15 | Daniil Medvedev v Christian Harrison | 2-6,7-5,6-4 |
| ATP Toronto Qual | 2018/08/04 16:25 | Christian Harrison v Mirza Basic | 4-6,4-6 |
Away History
| Challenger Knoxville | 2018/11/08 00:30 | Roberto Quiroz v Blaz Rola | 6-7,4-6 |
| Challenger Guayaquil | 2018/10/31 23:15 | Juan Ignacio Londero v Roberto Quiroz | 6-7,7-6,6-1 |
| Challenger Guayaquil | 2018/10/31 02:20 | Juan Pablo Varillas v Roberto Quiroz | 3-6,6-3,3-6 |
| Challenger Calgary | 2018/10/19 19:30 | Roberto Quiroz v Ivo Karlovic | 6-7,6-4,6-7 |
| Challenger Calgary | 2018/10/18 18:20 | Roberto Quiroz v Cem Ilkel | 6-4,6-3 |
| Challenger Calgary | 2018/10/17 00:05 | Roberto Quiroz v Vincent Millot | 1-6,7-5,6-1 |
| Challenger Santo Domingo | 2018/10/08 17:00 | Roberto Quiroz v Juan Ignacio Londero | 1-6,3-6 |
| Challenger Monterrey | 2018/10/04 20:00 | Marcel Granollers v Roberto Quiroz | 6-7,7-6,7-5 |