Stadium: Court 18 Round: 60 Ground: Clay
| ITF USA F3 Qual | 2018/01/06 16:00 | Sorbo, Jonathan v Oljaca, Mark | 1-6,3-6 |
| ITF USA F3 Qual | 2018/01/05 15:30 | Vito Dell'Elba v Oljaca, Mark | 0-6,2-6 |
| Afrique du Sud F2, Qualifications Simples | 2017/11/25 07:50 | Oljaca, Mark v Ratsaratany, Loic | 1-6,7-6,2-6 |
| ITF South Africa F1 Qual | 2017/11/19 10:20 | Oljaca, Mark v Joshua Luck | 4-6,2-6 |
| ITF South Africa F1 Qual | 2017/11/18 09:50 | Du Toit, Daniel v Oljaca, Mark | 2-6,3-6 |
| ITF Greece F9 Qual | 2017/11/12 10:30 | Remy Bertola v Oljaca, Mark | 6-0,6-3 |
| ITF Greece F8 | 2017/11/05 12:00 | Oljaca, Mark v Roumane, Rayane | 4-6,2-6 |
| ITF Greece F7 | 2017/10/28 10:30 | Oljaca, Mark v Dan Alexandru Tomescu | 4-6,2-6 |
| ITF USA F3 Qual | 2018/01/06 16:00 | Acob, Zandrix v Parker, Jordan | 6-3,2-6,5-7 |
| ITF USA F3 Qual | 2018/01/05 15:30 | Wagner, Rafael v Parker, Jordan | 2-6,2-6 |
| ITF Nigeria F5 Qual | 2017/10/14 09:50 | Parker, Jordan v Idoko, Emmanuel | 6-2,0-6,0-6 |
| ITF Nigeria F4 | 2017/10/10 08:30 | Thomas Setodji v Parker, Jordan | 6-4,6-2 |
| ITF Nigeria F4 Qual | 2017/10/08 16:25 | Parker, Jordan v Du Toit, Lance-Pierre | 6-3,6-4 |
| ITF Nigeria F4 Qual | 2017/10/07 10:35 | Parker, Jordan v Abamu, Martins | 7-5,6-3 |
| ITF Canada F7 Qual | 2017/09/10 16:40 | Sisko, Stjepan v Parker, Jordan | 6-1,4-6,6-3 |
| ITF Canada F6 Qual | 2017/09/02 17:30 | Parker, Jordan v Sorbo, Jonathan | 7-5,7-6 |