Stadium: Covered Court 2 Round: 26 Ground: Hardcourt outdoor
| Challenger Launceston | 2019/01/29 02:00 | Guilherme Clezar v Tsung-Hua Yang | 5-7,6-7 |
| 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 Launceston | 2019/01/29 23:00 | Yusuke Takahashi v Hiroki Moriya | 6-3,6-4 |
| Challenger Burnie | 2019/01/23 02:35 | Hiroki Moriya v Zhe Li | 3-6,4-6 |
| Australian Open | 2019/01/10 23:00 | Hiroki Moriya v Luca Vanni | 2-6,2-6 |
| Australian Open | 2019/01/10 00:50 | Jason Jung v Hiroki Moriya | 2-6,3-6 |
| Australian Open | 2019/01/07 23:00 | Hiroki Moriya v Rinky Hijikata | 7-6,2-6,6-3 |
| Challenger Playford | 2019/01/03 00:55 | Hiroki Moriya v Tommy Paul | 0-6,6-2,2-6 |
| Challenger Playford | 2019/01/01 03:10 | Corentin Moutet v Hiroki Moriya | 1-6,4-6 |
| Challenger Playford | 2018/12/31 01:00 | Hiroki Moriya v Yosuke Watanuki | 6-3,6-4 |