| U Ain't That Lucky | Horseshoe Indianapolis,
15-Oct-25 |
| U Asking Me | Wexford,
04-Jul-25 |
| U Bet Jo's Praying | Tampa Bay Downs,
06-Apr-25 |
| U Can Do U | Turf Paradise,
23-Jan-25 |
| U Cankissmy Jazz | Canterbury Park,
17-Aug-23 |
| U Cant Be Serious | Newbury,
02-Mar-25 |
| U Devil You | Ellis Park,
09-Aug-25 |
| U Dirty Dog | Monmouth Park,
13-Jul-25 |
| U Heat | Wolverhampton,
12-Oct-25 |
| U Kant Whip It | Penn National,
16-Sep-23 |
| U King | Greyville,
03-Apr-24 |
| U Know When U Know | Meadowlands,
12-Oct-25 |
| U Lite Up My Life | Gulfstream,
13-Jun-25 |
| U Palatinu | La Teste De Buch,
25-Apr-24 |
| U Ping | Busan,
15-Sep-23 |
| U R Not The Father | Horseshoe Indianapolis,
29-Oct-25 |
| U R Pressed | Del Mar,
19-Aug-23 |
| U Rascal U | Fair Grounds,
15-Mar-25 |
| U S Army Corps | Woodbine,
06-Dec-24 |
| U S Constitution | Laurel Park,
20-Oct-24 |
| U S Grant | Nottingham,
15-Jul-25 |
| U S Honour Nap | Fairmount Park,
29-Oct-25 |
| U S Navy Cross | Fonner Park,
28-Apr-24 |
| U S Navy Flag | Flemington,
10-Nov-18 |
| U S Ready | Rillito,
01-Apr-23 |
| U S S Charleston | Nottingham,
30-Oct-25 |
| U S S Constitution | Happy Valley,
04-Jun-25 |
| U Shakem I Rakem | Horseshoe Indianapolis,
15-Nov-24 |
| U Should B Dancing | Saratoga,
31-Aug-24 |
| U So Money Baby | Mountaineer,
22-Oct-25 |
| U Sure Do | Catterick,
18-Oct-25 |
| U Turn | Thirsk,
06-Sep-25 |
| U U Star | Charles Town,
21-Apr-24 |
| U V Cut | Ohi,
20-Oct-25 |
| U W Brother | Sha Tin,
07-May-23 |
| U. S. Army | Remington Park,
24-Aug-25 |
| U'flung | Otaki,
14-Jul-23 |
| Uaintright | Mountaineer,
05-Aug-25 |
| Uareastar | Ellerslie,
09-Mar-24 |
| Uasen | Seoul,
22-Mar-25 |
| Ubahha | Kempton,
16-Mar-23 |
| Ubari | Ohi,
07-Dec-23 |
| Ubatuba | Sha Tin,
09-Sep-18 |
| UBER | |
| UBER COOL | Port Augusta,
09-Sep-12 |
| Uber Cougar | Grafton,
29-Oct-19 |
| Uber In | Canberra,
24-Oct-25 |
| Uber Jet | Kilcoy,
08-Aug-21 |
| Uber Lux | Goulburn,
28-Jan-20 |
| Uber Mission | Niigata,
26-Jul-25 |
| Uber Mover | Esperance,
04-Feb-22 |
| Uber On Wings | Cessnock,
13-Dec-16 |
| Uber Queen | Mizusawa,
22-Dec-24 |
| Uber Rose | Hawkesbury,
13-Oct-13 |
| Uber Strong | Tokyo,
22-Jun-25 |
| Uberfall | Nagoya,
03-Sep-25 |
| Uberleben | Tokyo,
27-Nov-22 |
| Ubermensch | Morioka,
09-Jul-24 |
| Uberrima Fides | Bellewstown,
06-Apr-25 |
| Ubersonic Empress | Geraldton,
30-Dec-18 |
| Uberwald | Thoroughbred Park,
07-Apr-10 |
| Uberwinden | Kanazawa,
26-May-25 |
| UBETINIP | Allan Scott Park Morphettville,
23-May-09 |
| Ubettabehave | Redcar,
24-Sep-25 |
| Ubettabequick | Newcastle,
05-Jan-24 |
| Ubetterseethis | Musselburgh,
13-Oct-25 |
| Ubetwedo | Ipswich,
10-Feb-21 |
| Ubetya | Worcester,
25-Jul-24 |
| Ubhejane | Kalgoorlie,
25-Apr-14 |
| Ubiquitas | Fairview,
21-Oct-22 |
| Ubiquitous | Mahoning Valley,
28-Feb-25 |
| Ubirr Rock | Rockhampton,
29-Dec-20 |
| Ubisika | Fairview,
29-Nov-24 |
| Uboa | Launceston,
25-Feb-15 |
| Ubriaco | Hobart,
05-Jan-24 |
| Ubsingintheblues | Lone Star,
28-Jun-25 |
| Ubud | Morioka,
13-Oct-24 |
| Ubukhwebezana | Greyville,
17-Sep-25 |
| Ubuntu Warrior | Fairview,
08-Mar-24 |
| Ucalledit | Eagle Farm,
28-Dec-24 |
| Ucanaver | Fontwell,
11-May-23 |
| Ucandoit | Thurles,
01-Dec-22 |
| Ucankissjudysboode | Horseshoe Indianapolis,
15-Nov-24 |
| Ucantgetwhatuwant | Canterbury Park,
23-Aug-24 |
| Ucaptured Aero | Mountaineer Park,
06-Nov-23 |
| Ucelle | Gatton,
16-Oct-25 |
| Ucetek | Allan Scott Park Morphettville,
11-Dec-09 |
| Ucheongryung | Seoul,
16-Jun-24 |
| Uchi | Flinton,
19-Apr-25 |
| Uchida | Eidsvold,
01-Oct-22 |
| Uchimura | Morphettville Parks,
09-Feb-13 |
| Uchina Time | Chukyo,
30-Aug-25 |
| Uchoten | Kanazawa,
03-Jun-25 |
| Uchronie | ParisLongchamp,
09-Jun-24 |
| Uchumayo | Monterrico,
11-Mar-23 |
| Uchuno Kibo | Ohi,
22-Oct-25 |
| Uchuno Sekai | Sapporo,
30-Aug-25 |
| Uconic | Wyong,
05-Nov-22 |
| Udaberri | Lingfield,
18-Nov-23 |
| Udacha | Gowran Park,
22-Oct-24 |