Stadium: Court 13 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Hong Kong | 2019/06/11 07:05 | Alexander Crnokrak v Malhar Rajpal | 6-1,6-1 |
| ITF M25 Hong Kong | 2019/06/05 05:20 | Yan Bai v Alexander Crnokrak | 6-1,6-2 |
| ITF M25 Hong Kong | 2019/06/04 03:30 | Alexander Crnokrak v Jason Sankey | 6-1,6-4 |
| ITF M25 Nonthaburi | 2019/06/01 03:00 | Alexander Crnokrak v Rio Noguchi | 4-6,5-7 |
| ITF M25 Nonthaburi | 2019/05/31 03:00 | Alexander Crnokrak v Congsup Congcar | 6-0,6-2 |
| ITF M25 Nonthaburi | 2019/05/30 03:30 | Boris Butulija v Alexander Crnokrak | 0-6,2-6 |
| ITF M25 Nonthaburi | 2019/05/29 07:55 | Alexander Crnokrak v Isaac Becroft | 6-1,6-2 |
| ITF M25 Nonthaburi | 2019/05/22 08:05 | Hiroyasu Ehara v Alexander Crnokrak | 7-5,6-2 |
| ITF M25 Hong Kong | 2019/06/04 05:25 | Shuichi Sekiguchi v Wai Yu Kai | 6-2,6-1 |
| ITF M15 Wuhan | 2019/04/29 03:45 | Wai Yu Kai v Kousuke Ogura | 3-6,4-6 |
| ITF Hong Kong F3 | 2018/12/22 02:00 | Xin Gao v Wai Yu Kai | 6-3,6-2 |
| ITF China F12 Qual | 2018/08/11 02:00 | Hu Liu v Wai Yu Kai | 6-2,6-3 |
| ITF China F11 | 2018/07/17 01:00 | Lingxi Zhao v Wai Yu Kai | 6-2,6-2 |
| ITF China F11 Qual | 2018/07/16 02:55 | Wai Yu Kai v Xin Hu | 6-2,6-1 |
| ITF China F11 Qual | 2018/07/15 03:35 | Ruo Chen v Wai Yu Kai | 1-6,2-6 |
| ITF China F11 Qual | 2018/07/14 02:50 | Wai Yu Kai v Xiaoyu He | 6-2,6-2 |