| Challenger Lisbon | 05/16 12:25 | 26 | [144] Facundo Bagnis v Roberto Quiroz [230] | 6-3,6-2 | |
| Challenger Lisbon | 05/15 11:40 | 25 | [230] Roberto Quiroz v James Duckworth [153] | 7-6,7-5 | |
| Challenger Lisbon | 05/13 12:15 | 24 | [274] Kenny de Schepper v Roberto Quiroz [230] | 5-7,1-6 | |
| Challenger Puerto Vallarta | 05/02 20:00 | 26 | [165] Sebastian Ofner v Roberto Quiroz [225] | 6-2,6-1 | |
| Challenger Puerto Vallarta | 04/30 17:00 | 25 | [279] Marc-Andrea Huesler v Roberto Quiroz [225] | 3-6,4-6 | |
| Challenger Leon | 04/26 23:00 | 27 | [98] Alexander Bublik v Roberto Quiroz [207] | 6-4,7-6 | |
| Challenger Leon | 04/25 20:40 | 26 | [207] Roberto Quiroz v Mirza Basic [200] | 5-7,6-3,6-4 | |
| Challenger Leon | 04/24 17:40 | 25 | Roberto Quiroz v Lucas Gomez | 3-6,7-5,6-3 | |
| Challenger San Luis Potosi | 04/18 21:00 | 26 | [257] Lucas Miedler v Roberto Quiroz [210] | 6-4,6-4 | |
| Challenger San Luis Potosi | 04/17 21:25 | 25 | Alejandro Tabilo v Roberto Quiroz | 4-6,6-7 | |
| ATP Houston | 04/07 15:00 | 164 | [246] Daniel Elahi Galan v Roberto Quiroz [176] | 4-6,7-5,6-1 | |
| ATP Houston | 04/06 15:00 | 64 | [249] JC Aragone v Roberto Quiroz [176] | 2-6,0-6 | |
| Challenger Monterrey | 04/03 19:20 | 25 | [230] Santiago Giraldo v Roberto Quiroz [176] | 3-6,7-5,7-6 | |
| Challenger Drummondville | 03/14 14:00 | 26 | [175] Roberto Quiroz v Matteo Viola [268] | 6-4,3-6,4-6 | |
| Challenger Drummondville | 03/13 15:35 | 25 | [175] Roberto Quiroz v Evan Song [319] | 6-4,6-3 | |
| Challenger Indian Wells | 02/26 18:00 | 24 | [178] Salvatore Caruso v Roberto Quiroz [176] | 7-5,6-2 | |
| Challenger Morelos | 02/22 18:30 | 27 | [311] Steven Diez v Roberto Quiroz [182] | 7-6,6-0 | |
| Challenger Morelos | 02/21 17:00 | 26 | [338] Stefan Kozlov v Roberto Quiroz [182] | 4-6,6-7 | |
| Challenger Morelos | 02/19 17:20 | 25 | [416] Joao Souza v Roberto Quiroz [182] | 4-6,0-6 | |
| ATP Nowy Jork | 02/10 19:45 | 64 | [192] Tim Smyczek v Roberto Quiroz [176] | 6-7,6-3,7-5 | |
| Challenger Dallas | 02/06 18:55 | 25 | [352] Jared Hiltzik v Roberto Quiroz [176] | 6-2,4-6,6-0 | |
| Challenger Cleveland | 01/31 17:50 | 26 | [357] Jared Hiltzik v Roberto Quiroz [178] | 6-4,6-2 | |
| Challenger Cleveland | 01/30 16:30 | 25 | [296] Kevin King v Roberto Quiroz [178] | 1-6,6-4,3-6 | |
| Challenger Newport Beach | 01/24 20:00 | 26 | [50] Taylor Fritz v Roberto Quiroz [181] | 6-3,6-3 | |
| Challenger Newport Beach | 01/23 18:00 | 25 | [242] Christian Harrison v Roberto Quiroz [181] | 6-7,2-6 | |
| Challenger Knoxville | 11/08 00:30 | 25 | [180] Roberto Quiroz v Blaz Rola [235] | 6-7,4-6 | |
| Challenger Guayaquil | 10/31 23:15 | 26 | [119] Juan Ignacio Londero v Roberto Quiroz [181] | 6-7,7-6,6-1 | |
| Challenger Guayaquil | 10/31 02:20 | 25 | [331] Juan P Varillas v Roberto Quiroz [181] | 3-6,6-3,3-6 | |
| Challenger Calgary | 10/19 19:30 | 27 | [185] Roberto Quiroz v Ivo Karlovic [121] | 6-7,6-4,6-7 | |
| Challenger Calgary | 10/18 18:20 | 26 | [185] Roberto Quiroz v Cem Ilkel [234] | 6-4,6-3 |
Wikipedia - Roberto Quiroz
Roberto Quiroz (ur. 23 lutego 1992 w Guayaquil) – ekwadorski tenisista, reprezentant kraju w Pucharze Davisa.