Estadio: Centre Court Round: 25 Ground: Hardcourt outdoor
| Challenger de Columbus 3 | 2019/09/16 17:10 | Daniel Nguyen v Gabriel Petit | 6-7,6-3,4-6 |
| Challenger de Cary | 2019/09/12 16:25 | Daniel Nguyen v JC Aragone | 3-6,2-6 |
| Challenger de Cary | 2019/09/11 15:00 | Mitchell Krueger v Daniel Nguyen | 3-6,6-3,3-6 |
| Challenger de Cary | 2019/09/09 21:30 | Daniel Nguyen v Benjamin Sigouin | 6-1,6-3 |
| ATP Winston-Salem | 2019/08/18 19:00 | Raymond Sarmiento v Daniel Nguyen | 6-2,6-3 |
| ATP Winston-Salem | 2019/08/17 19:40 | Daniel Nguyen v Marcelo Arevalo | 6-4,4-6,7-6 |
| ITF M25 Memphis | 2019/08/16 20:00 | Roberto Cid Subervi v Daniel Nguyen | 6-4,4-6,6-2 |
| ITF M25 Memphis | 2019/08/15 23:00 | Kevin King v Daniel Nguyen | 4-6,3-6 |
| ITF M15 Novi Sad | 2019/08/13 11:20 | Filip Stipic v Alen Rogic-Hadzalic | 6-2,6-3 |
| ITF M15 Novi Sad | 2019/08/06 08:00 | Alen Rogic-Hadzalic v Duje Kekez | 6-3,1-6,11-13 |
| ITF M15 Novi Sad | 2019/08/05 10:30 | Alen Rogic-Hadzalic v Strahinja Rakic | 6-3,6-3 |
| ITF M15 Novi Sad | 2019/08/01 08:00 | Alen Rogic-Hadzalic v Gabor Borsos | 2-6,2-6 |
| ITF M15 Novi Sad | 2019/07/31 08:00 | Alen Rogic-Hadzalic v Stefan Spasojevic | 6-2,6-1 |
| ITF M15 Novi Sad | 2019/07/30 08:00 | Alen Rogic-Hadzalic v Frane Nincevic | 6-3,6-2 |
| ITF M15 Novi Sad | 2019/07/29 08:00 | Alen Rogic-Hadzalic v Shunsuke Wakita | 0-6,7-6,10-8 |
| ITF M15 Tabarka | 2019/07/11 10:20 | Alen Rogic-Hadzalic v Manuel Pena Lopez | 2-6,4-6 |