| Unanchored | Merton,
01-Jan-24 |
| Unanimous | Mornington,
22-Jan-25 |
| Unanimous Consent | Mountaineer Park,
26-Jun-24 |
| Unanimous Decision | Toowoomba Cushion Track,
10-Nov-12 |
| Unanimously | Louisiana Downs,
27-Sep-24 |
| Unanswered | Punchestown,
27-Apr-23 |
| Unanswered Prayer | Walcha,
06-Feb-15 |
| Unanswered Prayers | Plumpton,
20-Apr-25 |
| Unapologetic | Vaal,
08-Dec-22 |
| Unapologetic | Remington Park,
17-Oct-25 |
| Unapproachable | Bairnsdale,
12-Oct-25 |
| UNAPRED | Dowling Forest,
24-Feb-11 |
| Unarmed | Assiniboia Downs,
11-Sep-25 |
| Unashamed | Newcastle,
22-Oct-22 |
| Unassailable | Wondai,
21-Oct-23 |
| Unassuming | Wolverhampton,
05-Oct-25 |
| Unassuming | Gold Coast,
12-Aug-17 |
| Unassuming | Ellis Park,
17-Aug-25 |
| Unattainable Love | Horseshoe Indianapolis,
26-Aug-25 |
| Unaudited | Finger Lakes,
16-Oct-25 |
| Unauthorized | Curragh,
04-Oct-25 |
| Unauthorized | Newcastle,
26-Apr-14 |
| Unava Rim | San Isidro,
06-Jul-24 |
| Unavailable | Yarmouth,
27-Jun-25 |
| Unavoidable | TRIAL Royal Randwick,
05-May-25 |
| Unbeatable | Hawthorne,
13-Oct-25 |
| Unbeatable Nico | Ohi,
02-Sep-25 |
| Unbeaten | Palermo,
10-Nov-23 |
| Unbelievable | Sha Tin,
09-Mar-25 |
| Unbelievable Buy | Flemington,
17-Jan-15 |
| Unbelievable Sam | Wingatui,
28-Apr-24 |
| Unbendable | Belmont,
03-Oct-12 |
| Unbending | |
| Unbeugsam | Sapporo,
07-Sep-25 |
| Unbinding | Santa Anita,
14-Oct-25 |
| Unblinking | Fontwell,
03-Oct-25 |
| Unblushing | Hawkesbury,
05-Apr-21 |
| Unbounded | Saga,
31-Aug-24 |
| Unbounded Movement | Penn National,
30-Oct-25 |
| Unbowed | Armidale,
27-Oct-18 |
| Unbowed | Louisiana Downs,
22-Aug-24 |
| Unbreak | Busan,
23-Dec-22 |
| Unbreak My Heart | Ayr,
20-Sep-24 |
| Unbreakable Duke | Naas,
24-Aug-25 |
| Unbreakable Trust | Del Mar,
31-Oct-25 |
| Unbridled Annsley | Hawthorne,
21-Apr-23 |
| Unbridled Attitude | Horseshoe Indianapolis,
05-Sep-25 |
| Unbridled Beast | Horseshoe Indianapolis,
25-May-23 |
| Unbridled Beauty | Zia Park,
05-Nov-25 |
| Unbridled Bling | Lone Star,
30-Jun-25 |
| Unbridled Bomber | Saratoga,
26-Jul-25 |
| Unbridled Bride | Del Mar,
26-Aug-24 |
| Unbridled Cause | Mahoning Valley,
12-Feb-25 |
| Unbridled Chaos | Turfway Park,
10-Feb-24 |
| Unbridled Dash | Turf Paradise,
14-Feb-24 |
| Unbridled Devine | Horseshoe Indianapolis,
06-Sep-25 |
| Unbridled Favor | Ruidoso Downs,
23-Jun-25 |
| Unbridled Fox | Horseshoe Indianapolis,
19-Jul-23 |
| Unbridled Hero | Horseshoe Indianapolis,
04-Nov-25 |
| Unbridled Honor | Gulfstream,
20-Jan-24 |