ITF USA F3 Qual 01/08 16:00 60 Orkin, Elliott v Oljaca, Mark 7-6,4-6,7-5
ITF USA F3 Qual 01/07 15:00 60 Oljaca, Mark v Parker, Jordan 6-3,7-6
ITF USA F3 Qual 01/06 16:00 60 Sorbo, Jonathan v Oljaca, Mark 1-6,3-6
ITF USA F3 Qual 01/05 15:30 60 Vito Dell'Elba v Oljaca, Mark 0-6,2-6
Afrique du Sud F2, Qualifications Simples 11/25 07:50 44 Oljaca, Mark v Ratsaratany, Loic 1-6,7-6,2-6
ITF South Africa F1 Qual 11/19 10:20 44 Oljaca, Mark v Joshua Luck 4-6,2-6
ITF South Africa F1 Qual 11/18 09:50 44 Du Toit, Daniel v Oljaca, Mark 2-6,3-6
ITF Greece F9 Qual 11/12 10:30 62 Remy Bertola v Oljaca, Mark 6-0,6-3
ITF Greece F8 11/05 12:00 62 Oljaca, Mark v Roumane, Rayane 4-6,2-6
ITF Greece F7 10/28 10:30 62 Oljaca, Mark v Dan Alexandru Tomescu 4-6,2-6
ITF Greece F6 10/22 11:00 44 Oljaca, Mark v Rose, Joshua 1-6,3-6
ITF Greece F6 10/21 11:00 44 Oljaca, Mark v Schramm, Marvin 6-4,6-2
ITF USA F20 06/18 16:00 62 Oljaca, Mark v Drew Van Orderlain 6-1,6-4
ITF USA F20 06/17 17:00 62 Koleganov, Egor v Oljaca, Mark 6-4,1-6,2-6
ITF USA F18 06/12 16:00 62 Sinclair, Colin v Oljaca, Mark 6-2,6-1
ITF USA F16 04/29 15:30 60 Oljaca, Mark v Rocha, Juan 5-7,2-6
Challenger Tallahassee Qual 04/22 14:20 45 Chaplin, Jarryd v Oljaca, Mark 7-5,6-1
Sarasota, USA, Qualifying 04/15 15:20 45 Klahn, Bradley v Oljaca, Mark 6-3,6-3
ITF Greece F3 03/19 08:00 62 Callahan, Hunter v Oljaca, Mark 6-0,6-0
ITF Greece F3 03/18 07:00 62 Bothwell, Samuel v Oljaca, Mark 3-6,6-3,5-7
ITF Greece F2 03/16 07:30 25 Oljaca, Mark v Ismailov, Temur 5-7,4-6
ITF Greece F2 Qual 03/15 07:30 62 Boehler, Dominik v Oljaca, Mark Retired
ITF Greece F2 Qual 03/14 07:30 62 Butts, Skyler v Oljaca, Mark 4-6,2-6
ITF Greece F2 Qual 03/11 10:00 62 Oljaca, Mark v Krstev, Ondrej 6-4,6-4
ITF Greece F1 03/04 10:00 62 Oljaca, Mark v Butts, Skyler 2-6,4-6
ITF USA F9 02/25 15:00 60 Oljaca, Mark v Legall, Jason 5-7,3-6
ITF USA F9 02/24 14:00 60 Oljaca, Mark v Nortey, Isaac Nortie 7-6,7-6
ITF USA F8 02/21 22:00 25 Oljaca, Mark v Miomir Kecmanovic 3-6,2-6
USA F7, Singles Qualifying 02/11 15:00 60 Richmond, John Harrison v Oljaca, Mark 6-7,6-4,6-0
USA F7, Singles Qualifying 02/10 15:00 60 Emmett Ward v Oljaca, Mark 3-6,6-7