Stadium: Ct 3 Round: 62 Ground: Hardcourt outdoor
| ITF Australia F1 Qual | 2018/02/25 00:00 | Alan Poric v Matthew Leffler | 1-6,6-7 |
| ITF Australia F1 Qual | 2018/02/24 03:00 | Mustafa Ibraimi v Matthew Leffler | 3-6,3-6 |
| ITF Thailand F12 Qual | 2017/12/09 05:30 | Matthew Leffler v Miguel Diaz | 3-6,3-6 |
| ITF Thailand F10 Qual | 2017/11/26 08:00 | Matteo Martineau v Matthew Leffler | 6-2,6-2 |
| ITF Thailand F10 Qual | 2017/11/25 05:00 | Matthew Leffler v Natthasith Kunsuwan | 6-0,7-6 |
| Challenger Traralgon Qual | 2017/10/21 00:25 | Matthew Leffler v Thales Turini | 1-6,4-6 |
| ITF Australia F7 Qual | 2017/10/07 02:30 | Matthew Romios v Matthew Leffler | 6-4,6-2 |
| ITF Thailand F1 | 2017/06/17 03:00 | Matthew Leffler v Ankit Chopra | 3-6,1-6 |
| ITF Australia F1 Qual | 2018/02/24 03:00 | Patrick Harper v Mason Naumovski | 4-6,7-6,7-5 |
| ITF Australia F6 | 2017/09/29 23:30 | Patrick Harper v Edward Bourchier | 3-6,2-6 |
| ITF Australia F5 Qual | 2017/09/23 01:30 | Patrick Harper v Lucas Vuradin | 0-6,0-6 |