Round: 62 Ground: Clay
| ITF Australia F1 Qual | 2017/03/05 00:00 | Polkinghorne, Darren v Osborne, Zac | 6-1,6-1 |
| ITF Australia F5 Qual | 2017/09/23 01:30 | Polkinghorne, Darren v Takahiro Kubo | 6-1,6-2 |
| ITF Australia F4 | 2017/09/20 02:30 | Polkinghorne, Darren v Harris, Andrew | 3-6,3-6 |
| ITF Australia F4 | 2017/09/19 04:00 | Swindells, Jack v Polkinghorne, Darren | 3-6,5-7 |
| ITF Thailand F6 Qual | 2017/08/14 02:30 | Polkinghorne, Darren v Look, Michael | 4-6,3-6 |
| ITF Thailand F6 Qual | 2017/08/13 07:25 | Polkinghorne, Darren v Kerdlaphee, Phongsapak | 6-1,6-4 |
| ITF Thailand F5 | 2017/08/08 05:50 | Schneider, Ronnie v Polkinghorne, Darren | 6-3,1-6,6-2 |
| ITF Thailand F5 Qual | 2017/08/07 02:30 | Beale, Jeremy v Polkinghorne, Darren | 4-6,2-6 |
| ITF Thailand F5 Qual | 2017/08/06 04:40 | Yuttana Charoenphon v Polkinghorne, Darren | 1-6,1-6 |
| ITF Australia F1 Qual | 2017/03/05 00:00 | Polkinghorne, Darren v Osborne, Zac | 6-1,6-1 |
| ITF Australia F4 Qual | 2016/03/20 00:30 | Puodziunas, Scott v Osborne, Zac | 6-1,6-1 |
| ITF Australia F4 Qual | 2016/03/19 02:00 | Osborne, Zac v Shepheard, Michael | 3-6,7-6,6-2 |
| ITF Australia F3 Qual | 2016/03/12 01:30 | Commings, Michael v Osborne, Zac | 6-0,6-4 |
| ITF Australia F10 Qual | 2015/11/08 02:00 | Patrick Fitzgerald v Osborne, Zac | 7-5,6-2 |
| ITF Australia F4 Qual | 2015/03/21 00:30 | Beale, Jeremy v Osborne, Zac | 6-2,6-2 |
| ITF Australia F1 Qual | 2015/02/21 00:30 | Osborne, Zac v Pascual, Marlino | 6-7,3-6 |