A full field of 12 sophomore fillies has been entered in the Grade 3, $125,000 Bourbonette Oaks on Saturday at Turfway Park.

The contest will be worth points on a 50-20-10-5 basis as part of the Road to the Kentucky Oaks series.

The Bourbonette Oaks will take place one race before the Grade 3, $550,000 Spiral and will see stakes veterans facing off against stakes debuters. The 3-1 morning-line favorite in the one-mile event belongs to the latter category as Sloane Square tries black-type competition for the first time in this spot.

The Todd Pletcher-trained daughter of Giant's Causeway easily broke her maiden at first asking on January 19 before romping by 9 3/4 lengths last month in just her second start. Both times the gray filly was the post-time favorite but will likely face some competition for that honor in Saturday's Bourbonette Oaks. John Velazquez takes the reins for the first time on Sloane Square.

Aurelia's Belle and Swiss Lake Yodeler could be the ones vying for favoritism following nice efforts against graded competition in their last races. The former filly, who is trained by Wayne Catalano, has placed in the Grade 2 Davona Dale, Grade 2 Forward Gal and Grade 3 Old Hat in her past three, and will tote the same 118-pound impost as Sloane Square.

Swiss Lake Yodeler will be giving those two rivals six pounds after being assigned 124, most of which will be taken up by Hall of Famer Russell Baze. The Jerry Hollendorfer miss captured a pair of state-bred stakes last year and enters the Bourbonette Oaks off a third in the Grade 3 Santa Ysabel.

Others of note in Saturday's Bourbonette Oaks include Zensational Bunny, who ran fourth in the Old Hat in her most recent effort to post her first loss from three starts; Grade 3 Rachel Alexandra third-placer Shanon Nicole; and Katie's Eyes, a 7 1/2-length scorer over the track on February 14.