| Ubbe (urban2000) | Stockholm | 7 | 3 | 3 |
| udalenkapro (udalenkapro) | Россия | 0 | 0 | 0 |
| Uffe38 (Uffe38) | Sweden | 327 | 145 | 85 |
| ugolfequipment (ugolfequipment) | 2201 Ridges Road Baileys Harbor Wisconsin USA 54202 | 0 | 0 | 0 |
| ukrnshopes (ukrnshopes) | Украина | 0 | 0 | 0 |
| UkrpozRNB (UkrpozRNB) | Ukraine | 0 | 0 | 0 |
| umichdave (umichdave) | Michigan | 160 | 103 | 46 |
| Underthestairs (Deac) | South Jersey | 192 | 141 | 64 |
| Unems (Unems) | Москва | 0 | 0 | 0 |
| Unknown42 (Unknown42) | Grand Rapids, Michigan | 29 | 16 | 10 |
| unknownfy24 (unknownfy24) | United States | 75 | 45 | 23 |
| Unphased | Wisconsin | 300 | 68 | 26 |
| untebabetegov (untebabetegov) | United Arab Emirates | 0 | 0 | 0 |
| unvasquesande (unvasquesande) | 2201 Ridges Road Baileys Harbor Wisconsin USA 54202 | 0 | 0 | 0 |
| Upwaffle29 | Oregon | 57 | 17 | 1 |