Stadium: Court 8 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Nonthaburi | 2019/11/26 06:00 | Makoto Ochi v Alexander Crnokrak | 6-4,6-4 |
| ITF M15 Nonthaburi | 2019/12/05 06:45 | Alexander Crnokrak v Taiyo Yamanaka | 6-2,6-3 |
| ITF M15 Nonthaburi | 2019/12/04 04:00 | Adam El Mihdawy v Alexander Crnokrak | 5-7,2-6 |
| ITF M15 Nonthaburi | 2019/11/26 06:00 | Makoto Ochi v Alexander Crnokrak | 6-4,6-4 |
| Challenger Playford 2 | 2019/10/29 05:25 | Alexander Crnokrak v James Duckworth | 3-6,5-7 |
| Challenger Playford 2 | 2019/10/28 01:00 | Alexander Crnokrak v Luca Castelnuovo | 6-3,6-4 |
| Challenger Traralgon | 2019/10/21 04:05 | Alexander Crnokrak v Luke Saville | 2-6,4-6 |
| ITF M25 Toowoomba | 2019/10/08 00:00 | Alexander Crnokrak v Will Maher | 3-6,4-6 |
| ITF M25 Brisbane | 2019/10/01 03:50 | Jacob Grills v Alexander Crnokrak | 0-6,6-3,6-1 |
| ITF M15 Nonthaburi | 2019/12/05 02:30 | Hong Chung v Makoto Ochi | 7-5,6-7,2-6 |
| ITF M15 Nonthaburi | 2019/12/03 05:30 | Keisuke Saitoh v Makoto Ochi | 2-6,2-6 |
| ITF M15 Nonthaburi | 2019/11/28 04:25 | Makoto Ochi v Sora Fukuda | 4-6,1-6 |
| ITF M15 Nonthaburi | 2019/11/26 06:00 | Makoto Ochi v Alexander Crnokrak | 6-4,6-4 |
| Challenger Liuzhou | 2019/10/23 04:55 | Denis Istomin v Makoto Ochi | 7-6,6-3 |
| Challenger Liuzhou | 2019/10/21 06:00 | Makoto Ochi v Ivan Sabanov | 6-2,6-2 |
| ITF M25 Tay Ninh | 2019/10/03 02:00 | Daniel Nguyen v Makoto Ochi | 4-6,6-4,7-5 |
| ITF M25 Tay Ninh | 2019/10/02 02:00 | Arjun Kadhe v Makoto Ochi | 2-6,6-2,2-6 |