| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Umora | grey | f | 1959 | 5493 Otboy | 10458 Umarina | Orlov trotter | Novotomnikovskii konzavod | |
| Umova | grey | f | 2019 | 11714 Ararat | Uprugaya | Orlov trotter | Zaporojskiy konzavod | |
| 11241 Umysel | grey | c | 1988 | 10623 Mars | 15572 Ukradka | Orlov trotter | Khrenovskoy Stud | |
| 16229 Undina | grey | f | 1975 | 8501 Ispolnitelnyy | 15580 Upakovka | Orlov trotter | Khrenovskoy Stud | |
| 05129 Undina | bay | f | 1933 | Orlov trotter | ||||
| 7911 Undina | grey | f | 1942 | 2685 Dukach | 4725 Uzdechka | Orlov trotter | Novotomnikovskii konzavod | |
| Undina | d.-grey | f | 1948 | 1710 Menestrel | 7945 Uha | Orlov trotter | Permskiy konzavod | |
| Unesennaya Vetrom | grey | f | 2009 | 11737 Vepr | 21045 Uprava | Orlov trotter | Egorov G.M., g. Samara | |
| Ungar | grey | c | 1990 | 10334 Gornist | 16963 Uzornaya | Orlov trotter | Shahovskoy konzavod | |
| Unika | f | 1978 | А149 Nespokoynyy | 15574 Ulovka | Orlov trotter | Shahovskoy konzavod |