| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Usman | d.-bay | f | 2022 | 643099011095332 | 013332(А) Simpli Kronos | 028100 Ufa | Trotter | "Aleksandrovsk Stud N 12" |
| Usmenie | bay | f | 1994 | Uno Atout | Perfect Mate | French Trotter | Italy | |
| 010457 Usmeshka | bay | f | 1936 | Trotter | ||||
| 021668 Usmeshka | grey | f | 1985 | 010249 Ametist | 020526 Ubeditelnaia | Trotter | Elanskiy k.z. | |
| 016553 Usmeshka | bay | f | 1970 | 08344 Metropol | 013202 Ugroza | Trotter | Omskii konzavod | |
| Usmeshka Lok | d.-bay | f | 2025 | Crazed | 028671(Ф) Ulva Lok | French Trotter | "Konny zavod "Lokotskoy" | |
| 025210 Usobitsa | bay | f | 2001 | 011198(А) Speed Squared | 021662 Uvertyura | Trotter | "Aleksandrovsk Stud N 12" | |
| 7153 Uspeh | bay | c | 1951 | 5942 Tulskiy Pryanik | 7877 Udacha | Orlov trotter | OKZ VNIIK | |
| Uspeh | bay | c | 2000 | 010971 Platan | 022888 Undina | Trotter | "Aleksandrovsk Stud N 12" | |
| Uspeh | br. | c | 2002 | 011198(А) Speed Squared | 022370 Ugryumaya | Trotter | "Aleksandrovsk Stud N 12" |