| Name | Steam ID | Records | WRs |
|---|---|---|---|
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| Unit64 | 76561197997828717 | 2 | 0 |
| Unit - Booby | 76561198034366300 | 7 | 0 |
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| Unity | 76561198019913557 | 1 | 0 |
| UNITY | 76561199157147443 | 1 | 0 |
| [▲] UNIVAK | 76561198257134039 | 1 | 0 |
| Universal | 76561198039885709 | 25 | 0 |
| Universium | 76561199153390032 | 13 | 0 |
| Un_jay | 76561198387112853 | 1 | 0 |
| unk_ | 76561198196210593 | 4 | 0 |
| unk1nd123 | 76561198073956939 | 1 | 0 |
| Unkind Name | 76561198367268415 | 1 | 0 |
| unkn0wn | 76561198376608433 | 1 | 0 |
| _Unknown | 76561198271364405 | 1 | 0 |
| UNknown | 76561198376517575 | 1 | 0 |
| UnknownCat | 76561198013813537 | 1 | 0 |
| unknownplayer | 76561198295884981 | 1 | 0 |
| Unknwn | 76561197960405159 | 1 | 0 |
| unL.mojo | 76561197990569984 | 1 | 0 |
| Unmaykr | 76561199091215105 | 1 | 0 |
| UNNAKED | 76561198084619299 | 13 | 0 |
| Unnamed | 76561197960568334 | 1 | 0 |
| Unnamed | 76561199178222180 | 3 | 0 |
| Unnamed 001 | 76561198114609244 | 1 | 0 |
| unnamedplayer | 76561197966125742 | 2 | 0 |
| unnamedPlayer | 76561198059489229 | 3 | 0 |
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| Unnamed Player | 76561198021750319 | 15 | 0 |
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| UnnamedPlayer | 76561198035513325 | 4 | 0 |
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