| Name | Steam ID | Records | WRs |
|---|---|---|---|
| OrmX | 76561197984458591 | 12 | 0 |
| OrnamentalCrime | 76561199031770223 | 3 | 0 |
| Orngasm | 76561199879029747 | 1 | 0 |
| o_rNGe | 76561198064555413 | 2 | 0 |
| //:[ORO]_ | 76561198069134320 | 251 | 0 |
| orourkelp123 | 76561199097397066 | 6 | 0 |
| ORRMANAFTERALL | 76561197960393987 | 6 | 0 |
| oRRus | 76561198029188320 | 1 | 0 |
| ortac | 76561198144940773 | 15 | 0 |
| Ortju | 76561198271383351 | 1 | 0 |
| OS | 76561197971767969 | 1 | 0 |
| OS | 76561197961421225 | 1 | 0 |
| OSANNnn | 76561197972611223 | 2 | 0 |
| oscar | 76561197999595616 | 1 | 0 |
| oscar.fuentealba | 76561198084305975 | 1 | 0 |
| Oscarmen | 76561198136935047 | 1 | 0 |
| OSCB | 76561198080691344 | 1 | 0 |
| Oscillating Bitches | 76561198031664584 | 5 | 0 |
| OshenMan | 76561198269114679 | 1 | 0 |
| oshhh | 76561198215797971 | 1 | 0 |
| osiemsiedem | 76561198141190444 | 11 | 0 |
| Osiris | 76561198160970377 | 2 | 0 |
| OSIRIS | 76561198362521030 | 1 | 0 |
| Osk | 76561198089023546 | 1 | 0 |
| oske | trade.tf TRADEIT.GG | 76561198097909972 | 1 | 0 |
| oskid | 76561198061371412 | 2 | 0 |
| Osminogha | 76561198172697939 | 14 | 0 |
| Osmique | 76561198950660166 | 2 | 0 |
| osmos | 76561198053474514 | 11 | 0 |
| osnaso | 76561199088587693 | 27 | 0 |
| oso|ananus | 76561198045692154 | 4 | 0 |
| oso|drpaine10 | 76561198056258154 | 2 | 0 |
| oso| FAT_Fingers | 76561197971201620 | 5 | 0 |
| oso|KILLERKRONIC | 76561198257329662 | 1 | 0 |
| oso|OrIgIn | 76561198257389032 | 1 | 0 |
| oso|PlasticSashimi | 76561197998882386 | 10 | 0 |
| oso|QuakeRuinedMe | 76561198257609396 | 6 | 0 |
| oso|RosieLarsen | 76561198253955006 | 4 | 0 |
| ossis | 76561198015579018 | 1 | 0 |
| ostapw | 76561198251724794 | 1 | 0 |
| Ostkandidat | 76561198004414997 | 1 | 0 |
| Ostrane | 76561198076312847 | 1 | 0 |
| OSTROV040_Ox's | 76561198127068912 | 1 | 0 |
| ota | 76561197967476174 | 1 | 0 |
| oterosantos | 76561198048321884 | 1 | 0 |
| OTG | 76561197971914809 | 1 | 0 |
| other quaker снежный | 76561198344147285 | 1 | 0 |
| Otis | 76561198052862589 | 1 | 0 |
| otjilliu42 | 76561198183831846 | 1 | 0 |
| otoko42 | 76561198023705797 | 1 | 0 |