| Name | Steam ID | Records | WRs |
|---|---|---|---|
| OLaF | 76561198986397031 | 6 | 0 |
| Olanzapine | 76561199064291212 | 1 | 0 |
| Olaral_13 | 76561198028570623 | 1 | 0 |
| olav3b0t | 76561197999517883 | 2 | 0 |
| ol'bastard | 76561197971849810 | 2 | 0 |
| Old Chum | 76561198257762775 | 6 | 0 |
| OldDog | 76561199480073774 | 3 | 0 |
| ol dirty bastard | 76561198069223798 | 1 | 0 |
| OldirtyBastel | 76561197971602541 | 1 | 0 |
| Ol Dirty Wookie | 76561197963461979 | 2 | 0 |
| Old Jim | 76561198381505555 | 1 | 0 |
| oldjoseph | 76561198116252139 | 6 | 0 |
| old.Lollipop | 76561198022541429 | 1 | 0 |
| Old Man Jenkins | 76561198199363586 | 1 | 0 |
| OldmanX | 76561198058769840 | 1 | 0 |
| old muzzy | 76561198123149657 | 1 | 0 |
| OLDOMET | 76561198881389602 | 1 | 0 |
| oldschooler85 | 76561198070238987 | 1 | 0 |
| OldSchoolling | 76561198063614263 | 1 | 0 |
| *Oldsity* | 76561198079025199 | 1 | 0 |
| ole.a.hal | 76561199215586974 | 2 | 0 |
| ??OLEEDEE | 76561197978616110 | 1 | 0 |
| Oleg | 76561198436190586 | 9 | 0 |
| olegator | 76561198372499625 | 10 | 0 |
| OLEG BLAZZZE | 76561198112004233 | 1 | 0 |
| OlegMaster | 76561198033640098 | 2 | 0 |
| OlegTar | 76561198080173091 | 6 | 0 |
| Oleh Teichtal | 76561198378493682 | 32 | 0 |
| oleks | 76561198016744880 | 20 | 0 |
| olga kurylenko plays quake | 76561199759439065 | 14 | 0 |
| olhor | 76561198316687384 | 2 | 0 |
| oliv | 76561198104178982 | 8 | 0 |
| Oliv3r_H3rFaCE | 76561198871639113 | 1 | 0 |
| olivereisele | 76561198026001829 | 1 | 0 |
| olivernas_konung | 76561198111244946 | 1 | 0 |
| oliverparikian | 76561198364950654 | 1 | 0 |
| Oliversarmy™ | 76561198032659047 | 6 | 0 |
| olivertrendshop1 | 76561198820462361 | 1 | 0 |
| olkoth | 76561198115702986 | 5 | 0 |
| ollet | 76561198037368464 | 1 | 0 |
| Olli | 76561198067776764 | 6 | 0 |
| OlliDolly | 76561198072146631 | 1 | 0 |
| Olliok | 76561198409091522 | 1 | 0 |
| oll!r | 76561197981044159 | 11 | 0 |
| olly_2001 | 76561198177707094 | 1 | 0 |
| olly chop | 76561198064794405 | 2 | 0 |
| Olof! | 76561198302510910 | 1 | 0 |
| Ololobster | 76561197993805974 | 1 | 0 |
| ololosha | 76561198359032192 | 4 | 0 |
| Olowan | 76561198010818882 | 1 | 0 |