Zenyatta, the 2010 Horse of the Year, foaled a colt by top sire Tapit on April 1 at 11:47 p.m. EDT at Lane’s End Farm near Lexington. Coincidentally, it is also Zenyatta’s birthday.

The colt, which is a leggy chestnut with a blaze like Zenyatta’s, was standing on his own by 12:18 a.m. and nursing within the hour. He is estimated to weigh 145 lbs.

This is Zenyatta’s second colt. She also has a yearling colt by Bernadini.

There are more great photos of the foaling on Zenyatta’s website.