Ground: Synthetic outdoor
| ITF Guam F1 | 2015/05/26 02:55 | Kelsey Stevenson v Mark Oljaca | 6-4,6-1 |
| ITF Guam F1 | 2015/05/24 01:00 | Jack Pulliam v Mark Oljaca | 3-6,2-6 |
| ITF Greece F2 Qual | 2015/03/29 08:30 | Mark Oljaca v Antoine Bellier | 3-6,7-6,2-6 |
| ITF Greece F1 | 2015/03/21 08:00 | Alessandro Bega v Mark Oljaca | 6-3,6-0 |
| ITF USA F1 Qual | 2015/01/03 20:00 | Mark Oljaca v Neven Krivokuca | 2-6,1-6 |
| ITF Canada F9 Qual | 2014/08/30 17:00 | Winston Lin v Mark Oljaca | 6-4,6-2 |
| ITF Canada F5 | 2014/07/07 15:00 | Mark Oljaca v Theo Fournerie | 0-6,1-6 |
| ITF Canada F5 Qual | 2014/07/05 15:00 | Mark Oljaca v Charles Force | 6-3,6-4 |