| Challenger Las Vegas | 10/15 19:15 | 25 | [207] Dmitry Popko v Roberto Quiroz [255] | 6-3,6-0 | |
| Challenger Las Vegas | 10/14 19:15 | 24 | [351] Altug Celikbilek v Roberto Quiroz [257] | 4-6,2-6 | |
| Challenger Fairfield | 10/08 19:55 | 25 | [257] Roberto Quiroz v Christopher O'Connell [192] | 3-6,4-6 | |
| Challenger Fairfield | 10/07 18:30 | 24 | [257] Roberto Quiroz v Lucas Gerch [453] | 6-3,6-3 | |
| Challenger Tiburon | 09/26 17:00 | 26 | [226] Maxime Cressy v Roberto Quiroz [254] | 5-7,6-2,6-3 | |
| Challenger Tiburon | 09/25 21:15 | 25 | [254] Roberto Quiroz v Denis Kudla [107] | 6-3,6-2 | |
| Challenger Tiburon | 09/24 18:35 | 24 | Ondrej Styler v Roberto Quiroz | 6-3,4-6,4-6 | |
| Challenger Columbus 3 | 09/21 16:00 | 28 | [200] Peter Polansky v Roberto Quiroz [249] | 7-6,7-6 | |
| Challenger Columbus 3 | 09/20 15:00 | 27 | [249] Roberto Quiroz v Mikael Torpegaard [167] | 7-6,7-6 | |
| Challenger Columbus 3 | 09/19 16:50 | 26 | [244] Donald Young v Roberto Quiroz [249] | 7-5,4-6,4-6 | |
| Challenger Columbus 3 | 09/18 17:40 | 25 | James Trotter v Roberto Quiroz | 4-6,2-6 | |
| Puchar Davisa | 09/14 16:45 | - | [137] Luis David Martinez v Roberto Quiroz [249] | 3-6,3-6 | |
| Challenger New Haven | 09/02 15:55 | 24 | [246] Roberto Quiroz v Noah Rubin [195] | 6-7,4-6 | |
| US Open | 08/20 21:50 | 44 | [258] Cem Ilkel v Roberto Quiroz [245] | 6-1,6-4 | |
| Challenger Vancouver | 08/13 03:25 | 24 | [200] Tallon Griekspoor v Roberto Quiroz [247] | 5-7,6-4,6-3 | |
| Challenger Aptos | 08/07 20:15 | 25 | [254] Roberto Quiroz v Steve Johnson [93] | 1-6,2-6 | |
| Challenger Aptos | 08/06 17:00 | 24 | [254] Roberto Quiroz v Andrew Harris [201] | 6-3,6-3 | |
| Challenger Tampere | 07/23 11:00 | 25 | [322] Gastao Elias v Roberto Quiroz [231] | 6-7,6-3,6-3 | |
| ATP Bastad | 07/15 09:00 | 164 | [53] Pablo Carreno-Busta v Roberto Quiroz [242] | 7-6,7-6 | |
| ATP Bastad | 07/14 10:00 | 64 | [439] Yannick Mertens v Roberto Quiroz [232] | 1-6,2-6 | |
| Challenger Perugia | 07/11 10:30 | 26 | [174] Federico Gaio v Roberto Quiroz [232] | 6-4,6-3 | |
| Challenger Perugia | 07/09 16:00 | 25 | [232] Roberto Quiroz v Filippo Baldi [149] | Retired | |
| Challenger Perugia | 07/08 14:10 | 24 | [356] Raul Brancaccio v Roberto Quiroz [232] | 6-7,3-6 | |
| Challenger Recanati | 07/01 11:15 | 24 | [232] Roberto Quiroz v Roberto Marcora [215] | 1-6,6-4,5-7 | |
| Wimbledon | 06/26 10:00 | 45 | [226] Roberto Quiroz v Noah Rubin [183] | 6-4,1-6,2-6 | |
| Wimbledon | 06/24 11:30 | 44 | [118] Jason Jung v Roberto Quiroz [226] | 6-7,6-7 | |
| Challenger Columbus | 06/12 21:55 | 25 | Francisco Cerundolo v Roberto Quiroz | 6-1,6-7,6-0 | |
| Challenger Little Rock | 06/05 16:20 | 25 | [217] Roberto Quiroz v Alexander Ritschard [487] | 2-6,5-7 | |
| French Open | 05/22 14:30 | 45 | [188] Blaz Rola v Roberto Quiroz [223] | 6-2,6-3 | |
| French Open | 05/20 15:45 | 44 | [204] Tallon Griekspoor v Roberto Quiroz [223] | 6-2,6-7,4-6 |
Wikipedia - Roberto Quiroz
Roberto Quiroz (ur. 23 lutego 1992 w Guayaquil) – ekwadorski tenisista, reprezentant kraju w Pucharze Davisa.