| Challenger Calgary | 10/17 00:05 | 25 | [185] Roberto Quiroz v Vincent Millot [446] | 1-6,7-5,6-1 | |
| Challenger Santo Domingo | 10/08 17:00 | 25 | [190] Roberto Quiroz v Juan Ignacio Londero [120] | 1-6,3-6 | |
| Challenger Monterrey | 10/04 20:00 | 26 | [100] Marcel Granollers v Roberto Quiroz [197] | 6-7,7-6,7-5 | |
| Challenger Monterrey | 10/02 20:15 | 25 | [197] Roberto Quiroz v Marcelo Arevalo [183] | 6-7,6-3,7-5 | |
| Challenger Tiburon | 09/25 18:50 | 25 | [223] Christopher Eubanks v Roberto Quiroz [198] | 7-6,7-6 | |
| Challenger Columbus | 09/22 17:50 | 28 | [111] Jordan Thompson v Roberto Quiroz [213] | 5-7,7-6,7-6 | |
| Challenger Columbus | 09/21 16:00 | 27 | [488] Luke Saville v Roberto Quiroz [213] | 3-6,1-6 | |
| Challenger Columbus | 09/19 17:15 | 26 | [355] Tommy Paul v Roberto Quiroz [213] | 6-7,6-3,6-7 | |
| Challenger Columbus | 09/18 14:00 | 25 | [246] John-Patrick Smith v Roberto Quiroz [213] | 6-3,6-7,6-7 | |
| Puchar Davisa | 09/15 15:25 | 29 | Darian King v Roberto Quiroz | Cancelled | |
| Puchar Davisa | 09/14 14:00 | 29 | Matthew Foster-Estwick v Roberto Quiroz | 0-6,1-6 | |
| Challenger Chicago | 09/04 19:20 | 25 | [207] Roberto Quiroz v Reilly Opelka [173] | 3-6,2-6 | |
| US Open | 08/21 21:25 | 44 | [210] Roberto Quiroz v Lloyd Harris [145] | 6-7,3-6 | |
| Challenger - Segovia | 08/03 11:30 | 27 | [226] Roberto Quiroz v Ugo Humbert [184] | 2-6,7-5,6-7 | |
| Challenger - Segovia | 08/02 10:20 | 26 | [303] Matteo Viola v Roberto Quiroz [226] | 5-7,5-7 | |
| Challenger - Segovia | 07/31 16:30 | 25 | [226] Roberto Quiroz v Carlos Boluda-Purkiss [263] | 4-6,6-4,6-4 | |
| ATP Hamburg Qual | 07/21 13:00 | 64 | [224] Roberto Quiroz v Thiago Monteiro [145] | 4-6,3-6 | |
| ATP Umag Qual | 07/15 08:00 | 64 | [235] Roberto Quiroz v Andrej Martin [164] | 2-6,6-7 | |
| Challenger Braunschweig | 07/10 09:00 | 25 | [235] Roberto Quiroz v Jozef Kovalik [117] | 1-6,0-6 | |
| Challenger Recanati | 07/07 17:45 | 28 | [301] Daniel Brands v Roberto Quiroz [235] | 6-0,6-3 | |
| Challenger Recanati | 07/06 15:50 | 27 | [235] Roberto Quiroz v Hiroki Moriya [213] | 6-4,6-2 | |
| Challenger Recanati | 07/04 15:30 | 26 | [126] Andrea Vavassori v Roberto Quiroz [235] | 4-6,3-6 | |
| Challenger Recanati | 07/02 16:55 | 25 | [222] Danilo Petrovic v Roberto Quiroz [235] | 2-6,6-3,2-6 | |
| ATP Eastbourne | 06/26 11:20 | 25 | [244] Roberto Quiroz v Lukas Lacko [94] | 4-6,6-7 | |
| ATP Eastbourne Qual | 06/24 11:35 | 164 | [223] Jay Clarke v Roberto Quiroz [244] | 7-6,4-6,4-6 | |
| ATP Eastbourne Qual | 06/23 14:35 | 64 | [344] Yannick Mertens v Roberto Quiroz [244] | 6-3,4-6,3-6 | |
| Challenger L'Aquila | 06/18 17:00 | 25 | [244] Roberto Quiroz v Gianluigi Quinzi [216] | 2-6,4-6 | |
| Challenger Lyon | 06/11 15:30 | 25 | [240] Roberto Quiroz v Pablo Andujar [129] | 2-6,5-7 | |
| Challenger Poznań | 06/05 12:20 | 25 | [239] Roberto Quiroz v Marcel Granollers [132] | 2-6,7-5,3-6 | |
| Challenger Vicenza | 06/01 11:30 | 27 | [145] Hugo Dellien v Roberto Quiroz [239] | 6-1,6-0 |
Wikipedia - Roberto Quiroz
Roberto Quiroz (ur. 23 lutego 1992 w Guayaquil) – ekwadorski tenisista, reprezentant kraju w Pucharze Davisa.