Unbridled O'brien (USA) Horse
Country
Foal Date
Colour
Sire
Dam
Prize Money
Trainer
Owners
About
Unbridled O'brien is a 3yo dk b/r from United States trained by Ivan Calderon. He is by Beau Liam out of Ultimate Holiday. The horse remains winless in five starts, still a maiden. In his most recent outing at Mahoning Valley on 2 Feb 2026, he was ridden by Laureano Sosa and finished second behind Machico Madeira.
Raced At
ThistledownRace Record
| Event Summary | Runner Stats | Rank |
|---|---|---|
| Mahoning Valley 02-Feb-26 1106m R8 Md $6,360 (of $31,800) Barrier 7, Winning Time: 01:06.260, SP: 6.50 bumped start, pace around the turn, hard fought battle, nipped. 1st Machico Madeira ( L R Rivera 122 ) 2nd Unbridled O'brien ( L Sosa 122 ) 0.25L 3rd Run Bobby Run ( V R Fernandez 122 ) 0.50L See full results | L Sosa 55.3kg 0.25L | 2 (10) |
| Mahoning Valley 10-Dec-25 1210m R9 Md $318 (of $31,800) Barrier 3, Winning Time: 01:14.600, SP: 3.25 1st Leavetheninetynine ( L Rivera 122 ) 2nd Machico Madeira ( E Barbaran 122 ) 5.00L 3rd Mr. Riffle ( J Bracho 122 ) 3.00L 8th Unbridled O'brien ( L Sosa 122 ) 18.00L See full results | L Sosa 55.3kg 18.00L | 8 (8) |
| Mahoning Valley 25-Nov-25 1210m R2 Md $318 (of $31,800) Barrier 5, Winning Time: 01:14.120, SP: 3.75 broke out and bumped an outer foe, pressed in the three path, took the lead while being roused from the four path into the stretch, but yielded in the final furlong. 1st Tom's Avatar ( R Bowen 122 ) 2nd Wisley ( N Vigil 122 ) 0.30L 3rd Leavetheninetynine ( L Rivera 122 ) 1.50L 6th Unbridled O'brien ( A Diaz 122 ) 5.25L See full results | A Diaz 55.3kg 5.25L | 6 (9) |
| Mahoning Valley 24-Oct-25 1210m R5 Md $6,360 (of $31,800) Barrier 1, Winning Time: 01:14.310, SP: 4.33 1st Skytree ( R Bowen 122 ) 2nd Unbridled O'brien ( A Diaz 122 ) 2.00L 3rd Mr. Riffle ( J Bracho 122 ) 3.25L See full results | A Diaz 55.3kg 2.00L | 2 (12) |
| Thistledown 04-Oct-25 1110m R2 Md $2,372 (of $33,900) Barrier 5, Winning Time: 01:07.640, SP: 7.50 dueled on the early lead, shook clear in the stretch and faltered late. 1st Poncho Jac ( F B Salazar 118 ) 2nd Mr. Riffle ( J Bracho 118 ) 0.20L 3rd Lucky For Life ( E Barbaran 118 ) 0.30L 4th Unbridled O'brien ( A Diaz 118 ) 2.60L See full results | A Diaz 53.5kg 2.60L | 4 (7) |