See the fields for 3 stakes on the 'Thurby' program at Churchill Downs

An evenly matched field of nine fillies and mares, headed by multiple stakes winner Change of Control, passed the entry box Saturday for Thursday’s 12th running of the $200,000 Unbridled Sidney going 5 1/2 furlongs on the new Matt Winn Turf Course.

The 11-race "Thurby" program begins at 12:45 p.m. EDT with the Unbridled Sidney going as the afternoon’s 10th race with a 5:45 post time.

Perry Harrison’s Change of Control, whose only loss in four starts over the grass at Churchill Downs came in last year’s Unbridled Sidney, is trained by Michelle Lovell and comes into Thursday’s race off a fourth-place finish behind two-time Grade 1 winner Campanelle (IRE) in the Giant’s Causeway at Keeneland.

Regular Colby Hernandez will be aboard and break from post position five.

Another top contender in the field is Castleton Lyons’ Brooke Marie.

Trained by Eddie Kenneally, Brooke Marie comes into Thursday’s race off a victory in the Monrovia (G2) going 6 ½ furlongs at Santa Anita on April 9. Luis Saez has the mount and will break from position two.

The field for the Unbridled Sidney, with riders, from the inside, is: Social Chatter (Rafael Bejarano), Brooke Marie (Saez), Ambassador Luna (Corey Lanerie), In Good Spirits (John Velazquez), Change of Control (Colby Hernandez), Catch a Bid (Brian Hernandez Jr.), Goin’ Good (Tyler Gaffalione), Tobys Heart (Jose Ortiz) and Bullseye Beauty (James Graham).

Gabriel Duignan and Mrs. Charlie O’Connor’s Hurricane Debbie, an 8-length winner on debut at Keeneland on April 14, heads a field of a dozen 2-year-olds entered Saturday for Thursday’s 28th running of the $200,000 Kentucky Juvenile going five furlongs on the main track.

The Kentucky Juvenile will go as the ninth race on Thursday’s 11-race program with a 5:11 p.m. post time.

Trained by three-time race winner Wesley Ward, including last year with Averly Jane, Hurricane Debbie will break from post 11 and be ridden by John Velazquez.

Four other debut winners from Keeneland are in the field including the Luis Mendez-trained King Adrock. Owned by Jim Hernandez, King Adrock won the first race of the recently completed Spring Meet by 5 lengths and will have Flavien Prat back aboard Thursday and break from post three.

The Opening Verse will go as the eighth race on Thursday’s 11-race program with a 4:37 p.m. post time.

A winner of three stakes here last year highlighted by the Wise Dan (GII), Set Piece comes into Thursday’s race off a seventh-place finish in the Maker’s Mark Mile (G1) at Keeneland in which he was beaten only 2 lengths.

Trained by Brad Cox, Set Piece will be ridden by Florent Geroux and break from post position six.