America's Best Racing. The Jockey Club.

Tattoo: A permanent, indelible mark on the inside of the upper lip used to identify the horse. In Quarter Horses the letter/number combination is five numbers or four numbers ending in a letter. In Thoroughbreds, it is a letter followed by five numbers.

VIDEO Racing 101: Saddle Weights
Joe Kristufek explains the process of making sure jockeys are carrying the correct weight and how the equipment has evolved over the years.