Stadium: Quadra 3 Round: 25 Ground: Clay
| Challenger Campinas | 2019/09/30 16:45 | Soares Klier, Gilbert v Nicolas Alvarez | 2-6,3-6 |
| Challenger - Buenos Aires | 2019/09/24 17:30 | Nicolas Alvarez v Thiago Seyboth Wild | 4-6,4-6 |
| Challenger - Buenos Aires | 2019/09/23 18:50 | Nicolas Alvarez v Juan Manuel Cerundolo | 6-3,6-0 |
| Challenger Seville | 2019/09/10 15:30 | Lorenzi, Paolo v Nicolas Alvarez | 7-5,6-3 |
| Challenger Seville | 2019/09/09 09:00 | Nicolas Alvarez v Okala, Jules | 6-2,6-4 |
| ITF M25 Oviedo | 2019/09/05 13:30 | Orlando Luz v Nicolas Alvarez | 5-7,6-3,7-6 |
| ITF M25 Oviedo | 2019/09/04 08:00 | Nicolas Alvarez v Benjamin Bonzi | 6-4,6-2 |
| ITF M25 Oviedo | 2019/09/02 17:00 | Nicolas Alvarez v Gennaro, Dante | 6-2,6-4 |
| Challenger Biella | 2019/09/18 11:15 | Alejandro Davidovich Fokina v Jahn, Jeremy | 7-5,7-5 |
| Challenger Biella | 2019/09/16 14:10 | Jahn, Jeremy v Enrico Dalla Valle | 6-3,6-4 |
| Challenger Szczecin | 2019/09/13 12:00 | Albert Ramos-Vinolas v Jahn, Jeremy | 7-6,6-2 |
| Challenger Szczecin | 2019/09/12 12:45 | Jahn, Jeremy v Gianluca Mager | 6-1,2-6,6-4 |
| Challenger Szczecin | 2019/09/11 08:00 | Rudolf Molleker v Jahn, Jeremy | 4-6,3-6 |
| Challenger Szczecin | 2019/09/10 14:00 | Vit Kopriva v Jahn, Jeremy | 5-7,4-6 |
| La Marsa, Singles M-ITF-TUN-37A | 2019/09/06 10:00 | Santanna, B. v Jahn, Jeremy | 6-1,6-2 |
| La Marsa, Singles M-ITF-TUN-37A | 2019/09/05 14:35 | Wilson Leite v Jahn, Jeremy | 4-6,2-6 |