| Name | Steam ID | Records | WRs |
|---|---|---|---|
| uLmi | 76561197961771823 | 1 | 0 |
| ulosen | 76561198273670912 | 3 | 0 |
| ulrich | 76561198022293079 | 4 | 0 |
| =ULT1M@TE= | 76561198415889627 | 1 | 0 |
| ulti | 76561198050926014 | 2 | 0 |
| ultiman | 76561198057041970 | 2 | 0 |
| Ultimate Alpha | 76561198026879066 | 2 | 0 |
| Ultimate_Cubchoo | 76561198868588032 | 1 | 0 |
| ultimateNOOB | 76561198317228679 | 2 | 0 |
| Ultimate_Sacrifice | 76561197984302007 | 1 | 0 |
| ultimateSub0 | 76561198862729530 | 1 | 0 |
| ULTIMO | 76561198039771525 | 10 | 0 |
| ult!ma.de | 76561198061265911 | 1 | 0 |
| .ultor | 76561198110673377 | 43 | 0 |
| ULTR4 | 76561198323770459 | 1 | 0 |
| ULTRA | 76561198257366239 | 29 | 0 |
| UltraBallz | 76561198165190835 | 1 | 0 |
| ULTRABOOCE*69* | 76561198018559884 | 2 | 0 |
| ultracompost | 76561198339018963 | 7 | 0 |
| Ultram | 76561198076661752 | 1 | 0 |
| Ultra_Sk | 76561198263414546 | 19 | 0 |
| ULTRAS STILON | 76561198041939840 | 1 | 0 |
| ultraviolence(dead ins) | 76561198150986967 | 1 | 0 |
| UltraWave | 76561197970882027 | 2 | 0 |
| Ulvase | 76561198138340682 | 2 | 0 |
| umaibo | 76561197990221138 | 1 | 0 |
| Umbre-off | 76561198343544583 | 1 | 0 |
| umcarara | 76561198047250787 | 70 | 0 |
| UMD | 76561198002382618 | 2 | 0 |
| ummmm | 76561197974492748 | 1 | 0 |
| umop 3p!sdn | 76561198033299184 | 1 | 0 |
| 【UMP9】🐾 | 76561198030870937 | 1 | 0 |
| =UMPA=Vapor | 76561197971999692 | 1 | 0 |
| 【Umpy】📼 | 76561197992432404 | 79 | 0 |
| uN | 76561198993494531 | 1 | 0 |
| uN1ok3r | 76561198024312724 | 2 | 0 |
| -un1q3ul | 76561198084301863 | 1 | 0 |
| un3k | 76561198197195550 | 2 | 0 |
| UnAimeD | 76561198017884339 | 3 | 0 |
| UnaimedPlaya | 76561198149163178 | 6 | 0 |
| Unarmed Draxman | 76561198014326169 | 1 | 0 |
| unazoomer | 76561198104264219 | 1 | 0 |
| uNb1nd | 76561198110790388 | 1 | 0 |
| unbind | 76561198053238899 | 1 | 0 |
| Unbound | 76561198192390301 | 2 | 0 |
| uNby | 76561198116125082 | 1 | 0 |
| uncleanpurity | 76561198258634095 | 1 | 0 |
| Uncle Ben | 76561198069466980 | 1 | 0 |
| Uncle Ben (The Rice Guy) | 76561198254332402 | 1 | 0 |
| Uncle Bobbo | 76561198052102834 | 2 | 0 |