Stadium: Ct 7 Round: 25 Ground: Hardcourt outdoor
| ITF Australia F7 | 2017/10/11 02:25 | Romios, Matthew Christopher v Polkinghorne, Darren | 1-6,0-6 |
| ITF Australia F7 | 2017/10/12 00:00 | Polkinghorne, Darren v Kelly, Dayne | 4-6,4-6 |
| ITF Australia F7 | 2017/10/11 02:25 | Romios, Matthew Christopher v Polkinghorne, Darren | 1-6,0-6 |
| ITF Australia F7 Qual | 2017/10/09 04:15 | Polkinghorne, Darren v Kouznetsov, Daniel | 6-2,6-2 |
| ITF Australia F6 | 2017/10/05 00:00 | Polkinghorne, Darren v Jason Kubler | 4-6,2-6 |
| ITF Australia F6 | 2017/10/03 02:20 | Gao, Xin v Polkinghorne, Darren | 1-6,4-6 |
| ITF Australia F6 | 2017/10/01 03:00 | Polkinghorne, Darren v Swindells, Jack | 6-3,3-6,6-1 |
| ITF Australia F6 | 2017/09/30 04:30 | Polkinghorne, Darren v Dane Sweeny | 6-3,4-6,6-3 |
| ITF Australia F5 | 2017/09/27 00:00 | Polkinghorne, Darren v Kelly, Dayne | 2-6,4-6 |
| Launceston, Australia | 2018/02/03 01:15 | Romios, Matthew Christopher v Caruana, Liam | 4-6,4-6 |
| Challenger - Burnie - Qualifications | 2018/01/26 23:00 | Romios, Matthew Christopher v Ulises Blanch | 6-4,2-6,5-7 |
| Challenger Canberra Qual | 2018/01/07 23:00 | Thomas Fancutt v Romios, Matthew Christopher | 6-4,6-4 |
| Challenger Canberra Qual | 2018/01/06 23:00 | Romios, Matthew Christopher v Chaplin, Jarryd | 6-1,6-2 |
| Challenger Canberra Qual | 2018/01/05 23:00 | Romios, Matthew Christopher v Alexander Babanine | 6-4,3-6,6-3 |
| Challenger Playford Qual | 2017/12/30 01:10 | Romios, Matthew Christopher v Mousley, Bradley | 3-6,4-6 |
| Challenger Canberra 2 Qual | 2017/10/28 03:20 | Romios, Matthew Christopher v Mitchell, Benjamin | 1-6,0-6 |
| Challenger Canberra 2 Qual | 2017/10/27 23:00 | Arjun Mehrotra v Romios, Matthew Christopher | 1-6,1-6 |