Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| Challenger Burnie | 2019/01/23 03:20 | Guilherme Clezar v Jeremy Beale | 2-6,4-6 |
| Australian Open | 2019/01/08 03:30 | Guilherme Clezar v Rudolf Molleker | 6-7,6-7 |
| Challenger Noumea | 2018/12/31 01:50 | Tomas Barrios Vera v Guilherme Clezar | 4-6,6-2,6-3 |
| Challenger Buenos Aires | 2018/11/16 18:10 | Guilherme Clezar v Federico Coria | 6-7,5-7 |
| Challenger Buenos Aires | 2018/11/15 17:00 | Martin Cuevas v Guilherme Clezar | 4-6,1-6 |
| Challenger Buenos Aires | 2018/11/12 16:05 | Miljan Zekic v Guilherme Clezar | 3-6,2-6 |
| Challenger Montevideo | 2018/11/06 19:45 | Guilherme Clezar v Pedro Sousa | 1-6,2-6 |
| Challenger Guayaquil | 2018/10/30 15:30 | Facundo Arguello v Guilherme Clezar | 4-6,6-2,6-1 |
| Challenger Launceston | 2019/01/28 00:25 | Aleksandar Vukic v Tsung-Hua Yang | 3-6,2-6 |
| Challenger Burnie | 2019/01/21 01:25 | Sebastian Fanselow v Tsung-Hua Yang | 6-4,6-3 |
| Challenger Da Nang | 2019/01/10 06:00 | Tsung-Hua Yang v Thai-Son Kwiatkowski | 4-6,6-7 |
| Challenger Da Nang | 2019/01/09 05:00 | Tsung-Hua Yang v Sumit Nagal | 2-6,6-1,6-0 |
| Challenger Da Nang | 2019/01/08 05:00 | Tsung-Hua Yang v Daniel Nguyen | 6-3,6-4 |
| Australian Open WC | 2018/11/28 04:45 | Yu Hsiou Hsu v Tsung-Hua Yang | 6-3,6-1 |
| Challenger Pune | 2018/11/20 09:05 | Prajnesh Gunneswaran v Tsung-Hua Yang | 6-4,6-4 |
| Challenger Bangalore | 2018/11/12 14:20 | Tsung-Hua Yang v James Ward | 6-7,4-6 |