Stadium: Court 4 Round: 24 Ground: Hardcourt outdoor
| Challenger Fairfield | 2018/10/06 21:30 | Daniel Nguyen v Dayne Kelly | 6-3,7-5 |
| Challenger Da Nang | 2019/01/08 05:00 | Tsung-Hua Yang v Daniel Nguyen | 6-3,6-4 |
| Challenger Da Nang | 2019/01/07 04:00 | Teymuraz Gabashvili v Daniel Nguyen | 2-6,4-6 |
| ITF M25 Los Angeles | 2019/01/04 20:25 | Brandon Holt v Daniel Nguyen | 6-4,6-2 |
| ITF M25 Los Angeles | 2019/01/03 19:15 | Daniel Nguyen v Alexander Lebedev | 7-6,6-4 |
| ITF M25 Los Angeles | 2019/01/01 19:40 | Alexis Gautier v Daniel Nguyen | 1-6,2-6 |
| Challenger Champaign | 2018/11/10 17:40 | Daniel Nguyen v Ruan Roelofse | 2-6,2-6 |
| Challenger Knoxville | 2018/11/04 22:45 | Nathaniel Lammons v Daniel Nguyen | 6-4,3-6,6-4 |
| Challenger Charlottesville | 2018/10/27 18:30 | Mikael Ymer v Daniel Nguyen | 3-6,6-2,6-4 |
| Challenger Burnie | 2019/01/21 05:35 | Alexander Zhurbin v Dayne Kelly | 6-4,6-4 |
| Challenger Canberra | 2019/01/06 03:00 | Brydan Klein v Dayne Kelly | 6-4,6-4 |
| Australian Open WC | 2018/12/12 02:35 | Dayne Kelly v Luke Saville | 5-7,6-3,2-6,6-7 |
| Australian Open WC | 2018/12/09 23:00 | Max Purcell v Dayne Kelly | 6-4,1-6,4-6,3-6 |
| Challenger Las Vegas | 2018/10/21 18:00 | Dayne Kelly v Hugo Grenier | 4-6,0-6 |
| Challenger Las Vegas | 2018/10/20 18:35 | Kaichi Uchida v Dayne Kelly | 3-6,3-6 |
| Challenger Fairfield | 2018/10/06 21:30 | Daniel Nguyen v Dayne Kelly | 6-3,7-5 |
| Challenger Stockton | 2018/10/01 21:00 | Patrick Kypson v Dayne Kelly | 6-4,6-1 |