Stadium: Ct 9 Round: 62 Ground: Hardcourt outdoor
| ITF Australia F8 | 2018/10/07 02:00 | Winter Meagher v Kotan, Patrick | 3-6,4-6 |
| ITF Australia F7 | 2018/09/29 00:00 | Christian Langmo v Kotan, Patrick | 6-1,6-3 |
| ITF Australia F6 | 2018/09/23 00:30 | Osborne, Zac v Kotan, Patrick | 4-6,6-3,7-5 |
| ITF Australia F5 | 2018/09/16 01:05 | Klein, Brydan v Kotan, Patrick | 6-3,6-1 |
| ITF Canada F4 Qual | 2018/06/23 19:00 | Seeberger, Matt v Kotan, Patrick | 6-1,4-6,6-4 |
| ITF Canada F3 Qual | 2018/06/18 19:00 | Kotan, Patrick v Du Toit, Riaan | 4-6,5-7 |
| ITF Australia F4 Qual | 2018/03/24 23:00 | Kotan, Patrick v Chase Ferguson | 1-6,0-6 |
| ITF Australia F4 Qual | 2018/03/23 23:00 | Kotan, Patrick v Doumanis, Yani Kimon | 6-3,6-4 |
| ITF Australia F8 | 2018/10/07 02:00 | Laubser, Ryan v Crnokrak, Alexander | 1-6,6-3,2-6 |
| ITF Australia F8 | 2018/10/06 01:00 | Crnokrak, Alexander v Dane Sweeny | 7-5,6-4 |
| ITF Australia F7 | 2018/10/02 03:30 | Kuan-Yi Lee v Crnokrak, Alexander | 1-6,7-6,6-2 |
| ITF Australia F6 | 2018/09/25 02:25 | Crnokrak, Alexander v Thomas Fancutt | 6-2,3-6,4-6 |
| ITF Australia F5 | 2018/09/18 00:00 | Klein, Brydan v Crnokrak, Alexander | 7-6,6-3 |
| ITF Indonesia F3 Qual | 2018/08/04 07:30 | Kovapitukted, Palaphoom v Crnokrak, Alexander | 7-5,7-5 |
| ITF Indonesia F2 Qual | 2018/07/29 02:00 | Rahman, Arief v Crnokrak, Alexander | 1-6,4-6 |
| ITF Vietnam F3 | 2018/05/15 04:35 | Yu, Cheng-Yu v Crnokrak, Alexander | 6-2,6-1 |