| Name | Last Run |
|---|---|
| Union Fleet | Colonial Downs, 03-Aug-25 |
| Union Folly | Penn National, 01-Mar-24 |
| Union Gap | Warwick Farm, 22-May-24 |
| Union Gen. George | Colonial Downs, 19-Jul-24 |
| Union Gig | Emerald Downs, 04-Jul-25 |
| Union Harbor | Emerald Downs, 11-Aug-25 |
| Union Harmony | Gulfstream, 21-Oct-24 |
| Union Heiress | Santa Anita, 04-Oct-25 |
| Union Helper Cen | Chantilly, 11-Oct-25 |
| Union Island | Newmarket, 20-Jul-25 |
| Union Jack | Belmont, 20-Aug-22 |
| Union Jackie | Kempton, 21-Dec-23 |
| Union Jukebox | Cairns, 16-Jul-19 |
| Union League | Mahoning Valley, 16-Nov-23 |
| Union Lights | Monmouth Park, 12-May-25 |
| Union Mist | Ellis Park, 17-Aug-25 |
| Union Navy | Finger Lakes, 23-Oct-25 |
| Union Park | Clonmel, 24-Oct-25 |
| Union Park | Monmouth Park, 31-Jul-23 |
| Union Purrfection | Monmouth Park, 10-Aug-25 |
| Union Quality | Canterbury Park, 14-Jul-23 |
| Union Rally | Penn National, 08-Jul-23 |
| Union Rep | Hamilton, 30-Nov-15 |
| Union Reward | Philadelphia Park, 02-Nov-23 |
| Union Roll | Churchill Downs, 17-Sep-23 |
| Union Rose | Turffontein, 30-Oct-25 |
| Union Rose | Churchill Downs, 20-Sep-25 |
| Union Run | Turfway Park, 15-Dec-23 |
| Union Secrets | Santa Anita, 06-Oct-25 |
| Union Spirit | Cootamundra, 26-Apr-25 |
| Union Square | TRIAL Lark Hill, 09-Aug-21 |
| Union Square | Lyon La Soie, 13-Mar-25 |
| Union Square | Turffontein, 14-Oct-23 |
| Union Station | Fairyhouse, 04-Nov-25 |
| Union Station | Mountaineer, 07-Nov-23 |
| Union Street | Ipswich, 01-Feb-13 |
| Union Suit | Aqueduct, 14-Feb-25 |
| Union Swag | Thistledown, 28-Aug-25 |
| Union Tap | Aqueduct, 02-Dec-23 |
| Union Thunder | Colonial Downs, 07-Sep-25 |
| Union Trail | Saratoga, 20-Jul-25 |
| Union Train | Del Mar, 05-Aug-23 |
| Union Warrior | Terang, 01-Jan-25 |
| Union Wave | Del Mar, 02-Sep-25 |
| Unionville | Cork, 11-Sep-25 |
| UNIPRINCESS | |
| Uniqa | Fontainebleau, 06-Mar-24 |
| Unique | Hawkesbury, 28-Jan-16 |
| Unique Ambition | Randwick, 12-Apr-25 |
| Unique Artist | TRIAL Moe, 05-Jun-23 |
| Unique Attitude | Wodonga, 26-Dec-11 |
| Unique Babe | Lone Star, 14-May-23 |
| Unique Baby | Cluden Park, 25-Jan-11 |
| Unique Bambino | Clare, 26-Oct-25 |
| Unique Brandy | Green Wattle, 07-Feb-10 |
| Unique Color | Mizusawa, 05-Oct-25 |
| Unique Command | Cessnock, 05-Jun-17 |
| Unique Dame | San Isidro, 06-Jan-25 |
| Unique Eagle | Launceston, 21-Feb-25 |
| Unique Elle | Gold Coast, 12-Jul-25 |