| Name | Steam ID | Records | WRs |
|---|---|---|---|
| un3k | 76561198197195550 | 1 | 0 |
| UnAimeD | 76561198017884339 | 3 | 0 |
| Unarmed Draxman | 76561198014326169 | 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 |
| Uncle Fass | 76561198011910122 | 1 | 0 |
| Uncle Joey | 76561198041462704 | 2 | 0 |
| Uncle Ramon | 76561198011020808 | 2 | 0 |
| UncleRazor | 76561197989933111 | 1 | 0 |
| UncleSam | 76561198351485831 | 1 | 0 |
| UncleStalin | 76561198257335629 | 3 | 0 |
| ℒund | 76561198323911925 | 1 | 0 |
| uNd3r7aKeR | 76561198410556330 | 1 | 0 |
| Undead | 76561198127183665 | 1 | 0 |
| UndeadAgr | 76561198065844301 | 4 | 0 |
| uN*DeaD|eXten | 76561198113076079 | 2 | 0 |
| Undecide | 76561198091100883 | 5 | 0 |
| undefined.OwL | 76561198129981779 | 1 | 0 |
| Under | 76561198328502655 | 1 | 0 |
| Underdog | 76561198153445374 | 4 | 0 |