Round: 62 Ground: Clay
| ITF Australia F3 | 2018/03/20 00:50 | Sookton-Eng, Chanchai v Blake Ellis | 2-6,2-6 |
| ITF Australia F2 Qual | 2018/03/04 00:30 | Sookton-Eng, Chanchai v Arjun Mehrotra | 6-7,4-6 |
| ITF Australia F2 Qual | 2018/03/02 23:00 | Sookton-Eng, Chanchai v Bilic, Feda | 6-4,6-7,6-3 |
| ITF Australia F1 | 2018/02/28 23:30 | Marc Polmans v Sookton-Eng, Chanchai | 6-3,6-0 |
| ITF Australia F1 | 2018/02/27 02:25 | Sookton-Eng, Chanchai v Crnokrak, Alexander | 6-1,6-4 |
| ITF Australia F1 Qual | 2018/02/25 23:00 | Sookton-Eng, Chanchai v Abfalter, David | 6-3,7-6 |
| ITF Australia F1 Qual | 2018/02/24 23:00 | Sookton-Eng, Chanchai v Bosnjak, Mislav | 5-7,6-4,7-5 |
| Challenger Canberra Qual | 2018/01/06 00:40 | Sookton-Eng, Chanchai v de Waard, Steven | 7-6,4-6,5-7 |