| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2018 | 3/1 | 0/0 | 3/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2017 | 16/21 | 8/10 | 8/11 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2016 | 6/8 | 6/6 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2015 | 9/7 | 4/4 | 1/1 | 2/1 | 2/1 | 0/0 | 0/0 |
| 2014 | 11/15 | 4/4 | 7/11 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2013 | 29/26 | 8/7 | 15/15 | 6/4 | 0/0 | 0/0 | 0/0 |
| 2012 | 3/7 | 2/3 | 0/2 | 1/1 | 0/1 | 0/0 | 0/0 |
| 2011 | 1/8 | 1/2 | 0/6 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2010 | 0/1 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2007 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 78/95 | 33/37 | 34/49 | 9/7 | 2/2 | 0/0 | 0/0 |
| perc. % | 45.09 % | 47.14 % | 40.96 % | 56.25 % | 50 % | 0 % | 0 % |
Mark Oljaca / Fixtures
| no matches found |
Mark Oljaca / surface: Hard
| 27.11.17 | q 1 | Loic Ratsaratany | Mark Oljaca | 6-1, 6-72, 6-2 |  | match details |  South Africa | Hard |
| 20.11.17 | q 1 | Mark Oljaca | Daniel Du Toit | 6-2, 6-3 |  | match details | South Africa | Hard |
| 20.11.17 | q 2 | Joshua Luck | Mark Oljaca | 6-4, 6-2 | | match details | ||
| 13.11.17 | q 1 | Mark Oljaca | Simone Lombardi | 7-64, 6-1 | | match details |  Greece F9 | Hard |
| 13.11.17 | q 2 | Remy Bertola | Mark Oljaca | 6-0, 6-3 | | match details | ||
| 06.11.17 | q 1 | Mark Oljaca | Daniel Triantafyllou | 7-5, 6-1 | | match details | Greece F8 | Hard |
| 06.11.17 | q 2 | Rayane Roumane | Mark Oljaca | 6-4, 6-2 | | match details | ||
| 30.10.17 | q 1 | Dan Alexandru Tomescu | Mark Oljaca | 6-4, 6-2 | | match details | Greece F7 | Hard |
| 23.10.17 | q 2 | Joshua Rose | Mark Oljaca | 6-1, 6-3 | | match details | Greece F6 | Hard |
| 23.10.17 | q 1 | Mark Oljaca | Marvin Schramm | 6-4, 6-2 | | match details | ||
| 09.10.17 | q 1 | Austin Abbrat | Mark Oljaca | 6-4, 6-4 | | match details |  USA F33 | Hard |
| 20.03.17 | q 2 | Hunter Callahan | Mark Oljaca | 6-0, 6-0 | | match details | Greece F3 | Hard |
| 20.03.17 | q 1 | Mark Oljaca | Samuel Bothwell | 6-3, 3-6, 7-5 | | match details | ||
| 16.03.17 | 1st round | Temur Ismailov | Mark Oljaca | 7-5, 6-4 | | match details | Greece F2 | Hard |
| 13.03.17 | qual. | Mark Oljaca | Dominik Boehler | 6-2, Dominik Boehler - retired | | match details | ||
| 13.03.17 | q 1 | Mark Oljaca | Ondrej Krstev | 6-4, 6-4 | | match details | ||
| 13.03.17 | q 2 | Mark Oljaca | Skyler Butts | 6-4, 6-2 | | match details | ||
| 06.03.17 | q 1 | Skyler Butts | Mark Oljaca | 6-2, 6-4 | | match details | Greece F1 | Hard |
| 20.12.16 | 1st round | Isaiah Strode | Mark Oljaca | 7-5, 6-3 | | match details |  Puerto Rico | Hard |
| 19.12.16 | qual. | Mark Oljaca | Kenta Kurita | 6-4, 4-6, 6-4 | | match details | ||
| 19.12.16 | q 1 | Mark Oljaca | Teja Repalle | 6-0, 6-0 | | match details | ||
| 19.12.16 | q 2 | Mark Oljaca | Angel Diaz-Mendez | 6-3, 6-2 | | match details | ||
| 14.11.16 | q 1 | Curtis Clarke | Mark Oljaca | 6-2, 6-2 | | match details | South Africa | Hard |
| 07.11.16 | q 1 | Mark Oljaca | Matt Seeberger | 7-66, 1-6, 6-4 | | match details | South Africa | Hard |
| 07.11.16 | q 2 | Vasilios Caripi | Mark Oljaca | 7-5, 6-2 | | match details | ||
| 01.11.16 | 1st round | Johannes Myburgh | Mark Oljaca | 6-2, 1-6, 6-2 | | match details | South Africa | Hard |
| 31.10.16 | q 2 | Mark Oljaca | Miodrag Popovic | 6-1, 6-3 | | match details | ||
| 31.10.16 | qual. | Mark Oljaca | Refiloe Molaoa | 6-2, 6-1 | | match details | ||
| 10.10.16 | q 1 | Guanarteme Nuez Delgado | Mark Oljaca | 6-4, 6-0 | | match details | USA F31 | Hard |
| 24.05.16 | 1st round | Takuto Niki | Mark Oljaca | 6-4, 6-0 | | match details |  Guam F1 | Hard |
| 14.09.15 | q 2 | Nick Chappell | Mark Oljaca | 6-2, 6-0 | | match details |  Canada F10 | Hard |
| 14.09.15 | q 1 | Mark Oljaca | Asad Siyyid | 7-67, 6-1 | | match details | ||
| 25.05.15 | q 1 | Mark Oljaca | Zhuo Zhang | 2-6, 6-3, 6-2 | | match details | Guam F1 | Hard |
| 25.05.15 | 1st round | Kelsey Stevenson | Mark Oljaca | 6-4, 6-1 | | match details | ||
| 25.05.15 | qual. | Mark Oljaca | Jack Pulliam | 6-3, 6-2 | | match details | ||
| 30.03.15 | q 1 | Mark Oljaca | Nikola Bismpikos | 6-0, 6-0 | | match details | Greece F2 | Hard |
| 30.03.15 | q 2 | Antoine Bellier | Mark Oljaca | 6-3, 6-73, 6-2 | | match details | ||
| 23.03.15 | q 1 | Alessandro Bega | Mark Oljaca | 6-3, 6-0 | | match details | Greece F1 | Hard |
| 18.08.14 | q 1 | Mark Oljaca | Cole Lacap | 6-1, 6-0 | | match details | Canada F8 | Hard |
| 18.08.14 | qual. | Nicolas Podesta | Mark Oljaca | 6-4, 6-2 | | match details | ||
| 11.08.14 | q 2 | Mark Oljaca | Ian Tomas | 6-0, 6-1 | | match details | Canada F7 | Hard |
| 11.08.14 | qual. | Kevin Kylar | Mark Oljaca | 6-4, 7-63 | | match details | ||
| 14.07.14 | q 1 | Carl Ho | Mark Oljaca | 6-4, 6-2 | | match details | Canada F6 | Hard |
| 07.07.14 | 1st round | Theo Fournerie | Mark Oljaca | 6-0, 6-1 | | match details | Canada F5 | Hard |
| 07.07.14 | qual. | Mark Oljaca | Marek Nehasil | 6-1, 6-2 | | match details | ||
| 07.07.14 | q 1 | Mark Oljaca | Charles Force | 6-3, 6-4 | | match details | ||
| 14.10.13 | q 2 | Max Wennakoski | Mark Oljaca | 6-3, 6-3 | | match details | USA F27 | Hard |
| 14.10.13 | q 1 | Mark Oljaca | Stanislav Korshunov | Stanislav Korshunov - walk over | | match details | ||
| 07.10.13 | q 1 | Mark Oljaca | Gustavo Gonzalez (USA) | 6-3, 7-64 | | match details | USA F26 | Hard |
| 07.10.13 | qual. | Max Wennakoski | Mark Oljaca | 6-3, 6-2 | | match details | ||
| 07.10.13 | q 2 | Mark Oljaca | Viju George | 7-5, 5-3, Viju George - retired | | match details | ||
| 09.09.13 | qual. | Max Wennakoski | Mark Oljaca | 6-0, 6-0 | | match details | Canada F8 | Hard |
| 09.09.13 | q 1 | Mark Oljaca | Houshang Habibi | 6-0, 6-1 | | match details | ||
| 09.09.13 | q 2 | Mark Oljaca | Marko Guzina | 6-3, 7-5 | | match details | ||
| 19.08.13 | q 1 | Mark Oljaca | Alexander Centenari | 7-67, 6-3 | | match details | Canada F6 | Hard |
| 19.08.13 | qual. | Elias Ymer | Mark Oljaca | 7-5, 6-0 | | match details | ||
| 13.07.13 | q 1 | Roger Jr. Hernandez | Mark Oljaca | 6-3, 6-2 | | match details | Granby Challenger | Hard |
| 08.07.13 | q 2 | Anderson Reed | Mark Oljaca | 6-4, 6-4 | | match details | Canada F4 | Hard |
| 01.07.13 | qual. | Samuel Shropshire | Mark Oljaca | 6-3, 6-2 | | match details | Canada F3 | Hard |
| 01.07.13 | q 1 | Mark Oljaca | Harrison Scott | 6-3, 3-6, 6-4 | | match details | ||
| 01.07.13 | q 2 | Mark Oljaca | Mark Sauer | 6-1, 6-0 | | match details | ||
| 20.08.12 | 1st round | Daniel Garza | Mark Oljaca | 6-4, 6-2 | | match details | Canada F6 | Hard |
| 16.07.12 | qual. | Milan Pokrajac | Mark Oljaca | 6-4, 6-0 | | match details | Granby Challenger | Hard |
| 16.07.12 | q 2 | Mark Oljaca | Yusuke Watanuki | 6-4, 7-63 | | match details | ||
| 16.07.12 | q 1 | Mark Oljaca | Nicolas Vincent | 6-1, 6-0 | | match details | ||
| 02.07.12 | 1st round | Arthur Karagezian | Mark Oljaca | 5-7, 7-69, 7-5 | | match details | Canada F3 | Hard |
| 18.07.11 | q 1 | Maks Gold | Mark Oljaca | 7-65, 6-3 | | match details | Lexington Challenger | Hard |
| 11.04.11 | q 2 | Gregory Ouellette | Mark Oljaca | 6-2, 6-2 | | match details | Tallahassee Challenger | Hard |
| 11.04.11 | q 1 | Mark Oljaca | Artiom Podgainii | 6-2, 4-6, 7-64 | | match details | ||
| 02.04.07 | q 1 | Michael Johnson | Mark Oljaca | 1-6, 6-2, 6-2 | | match details | Tallahassee | Hard |
