Stadium: Center Round: 25 Ground: Clay
| Challenger Guayaquil | 2019/10/28 16:00 | Nicolas Alvarez v Guilherme Clezar | 2-6,3-6 |
| Challenger Lima | 2019/10/22 01:25 | Nicolas Alvarez v Oscar Jose Gutierrez | 3-6,3-6 |
| Challenger Santo Domingo | 2019/10/08 20:00 | Andrea Collarini v Nicolas Alvarez | 6-7,6-4,6-1 |
| Challenger Santo Domingo | 2019/10/08 01:50 | Nicolas Alvarez v Jordi Arconada | 6-3,6-0 |
| Challenger Campinas | 2019/10/04 15:00 | Nicolas Alvarez v Juan Pablo Ficovich | 1-6,3-6 |
| Challenger Campinas | 2019/10/03 16:05 | Pedro Sakamoto v Nicolas Alvarez | 1-6,2-6 |
| Challenger Campinas | 2019/10/01 16:20 | Nicolas Alvarez v Jeremy Jahn | 6-4,6-2 |
| Challenger Campinas | 2019/09/30 16:45 | Gilbert S K Junior v Nicolas Alvarez | 2-6,3-6 |
| Challenger Baotou | 2019/08/28 08:35 | Miljan Zekic v Tsung-Hua Yang | 3-6,7-5,1-6 |
| Challenger Baotou | 2019/08/27 03:30 | Kento Takeuchi v Miljan Zekic | 6-4,3-6,4-6 |
| ITF M25 Poznan | 2019/08/22 13:20 | Jesper De Jong v Miljan Zekic | 3-6,7-5,2-6 |
| ITF M25 Poznan | 2019/08/20 12:00 | Robert Strombachs v Miljan Zekic | 6-4,3-6,2-6 |
| Challenger Portoroz | 2019/08/14 13:30 | Miljan Zekic v Matteo Viola | 0-6,3-6 |
| Challenger Portoroz | 2019/08/12 19:55 | Tom Kocevar-Desman v Miljan Zekic | 6-4,6-7,3-6 |
| ITF M15 Novi Sad | 2019/08/08 08:00 | Miljan Zekic v Ljubomir Celebic | 6-4,4-6,5-7 |
| ITF M15 Novi Sad | 2019/08/07 09:55 | Miljan Zekic v Milan Drinic | 6-4,6-2 |