| Unnecessary Tricks | Fonner Park,
04-May-25 |
| Unnerving | Hobart,
25-May-25 |
| Unnmoney | San Isidro,
11-Jan-24 |
| Uno | Finger Lakes,
01-Nov-23 |
| Uno Amor | Sunshine Coast,
26-Feb-23 |
| Uno Artie | Eagle Farm,
16-Sep-23 |
| Uno Cero | Club Hipico Santiago,
22-Apr-25 |
| Uno Eejay | Toowoomba Inner Track,
12-Jun-15 |
| Uno Five | Lismore,
22-Sep-16 |
| Uno Grande | Brighton,
18-Sep-23 |
| Uno Gusto | Wellington,
01-Sep-25 |
| Uno Joker | Inverell,
14-Nov-15 |
| Uno Katy | Mackay,
31-Aug-18 |
| Uno Le | Turfway Park,
31-Jan-25 |
| Uno Mamma Say | Sunland Park,
24-Mar-25 |
| Uno Mas Bourbon | Keeneland,
20-Apr-25 |
| Uno Me | Kalgoorlie,
24-Aug-25 |
| Uno Moon | Ipswich,
03-Sep-25 |
| Uno No | Sale,
18-Aug-16 |
| Uno Now | |
| Uno Pea | Fair Grounds,
13-Mar-25 |
| Uno Rite | Sunshine Coast,
03-May-25 |
| Uno Sass | Moruya,
01-Jul-22 |
| Uno Tiger | Gulfstream,
25-Aug-25 |
| Uno Tigress | Penn National,
29-Jul-23 |
| Uno Uno | Tampa Bay Downs,
08-Feb-24 |
| Uno Veloce | York,
12-Oct-23 |
| Uno What I'm Sayin | Monto,
25-Mar-23 |
| Uno Whats | Warrnambool,
08-Sep-14 |
| Uno Zoom | Goulburn,
05-Oct-21 |
| Unoaked | Devonport Tapeta Synthetic,
31-Aug-14 |
| Unobscured | Caulfield,
11-Oct-25 |
| Unodostrescuatro | Ellerslie,
18-Oct-25 |
| Unoechangcheon | Seoul,
12-Nov-23 |
| Unomore | Wellington,
06-Apr-19 |
| UNORDERED | Rosehill Gardens,
28-Feb-09 |
| Unorthodox | Mt Gambier,
26-May-24 |
| Unorthodox | Pimlico,
23-Sep-23 |
| Unowho | Canberra,
09-May-25 |
| Unowho | Newcastle,
03-Oct-23 |
| Unpaid | Rockhampton,
02-Feb-12 |
| Unparalleled | Seoul,
09-Mar-24 |
| Unparalleled | Kawasaki,
24-Aug-23 |
| UNPARTED | |
| Unperturbed | Yarra Valley,
19-Mar-17 |
| Unplanned Revolt | Warrnambool,
03-Oct-25 |
| Unplucked Gem | Canterbury Park,
02-Aug-24 |
| Unplugged | Wolverhampton,
07-Oct-25 |
| UNPLUGGED | Pakenham,
03-Nov-11 |
| Unpraised | Morphettville,
04-Nov-25 |
| Unprecedented | Gulfstream,
23-Oct-23 |
| Unpredictable Bay | Horseshoe Indianapolis,
15-Oct-25 |
| Unpredictable Gal | Cessnock,
04-Dec-12 |
| Unpredicted | Ladbrokes Pioneer Park,
25-Mar-23 |
| Unpresuming | Sha Tin,
01-Oct-24 |
| Unpretentious | Golden State Racing,
18-Nov-24 |
| Unpublished | Mountaineer Park,
15-Dec-22 |
| Unpublished Critic | Townsville,
08-Jan-15 |
| Unpunished | Townsville,
29-Sep-23 |
| Unquenchable | Tokyo,
02-Nov-25 |