Rachel Alexandra is among 13 horses entered for Saturday’s Preakness Stakes.

The standout filly was entered Wednesday to run against the boys, along with 50-1 Kentucky Derby winner Mine That Bird and Derby runner-up Pioneerof the Nile.

Rachel Alexandra’s new owners paid a $100,000 supplemental fee to get her in because she wasn’t nominated to any of the Triple Crown races. The expectation was that she would compete only against her own gender.

Also entered for the 1 3-16-mile Preakness were beaten Derby favorite Friesan Fire, Big Drama, Flying Private, General Quarters, Luv Gov, third-place Derby finisher Musket Man, Papa Clem, Take the Points, Terrain and Tone It Down