What looked like a typical day for Lori Hendrickson, who manages her family’s Meadowbrook Farm in Shelbyville, Ky., was anything but as she discovered around 2:30 in the afternoon of March 10.

Hendrickson spied one of the farm’s broodmares lying down in a paddock on a day that hinted spring is around the corner. She knew the mare, Kona Kai, owned by Surfside Stables and in foal to four-time Grade 1 and Breeders’ Cup winner Oscar Performance, was due to give birth any day so she went to check on her.