Here's a sample:
5. A compact frame is a must for jockeys, but they need to be quick in the dressing room, too. Because jockeys have to wear unique silks for each horse they ride, a day of races may require a dozen wardrobe changes.
6. Horse names aren’t the free-for-all they seem to be. Names can be no more than 18 characters long, must not consist solely of numbers or initials, and can’t be in poor taste or have obvious commercial connections.
7. Horse names weren’t always so outlandish. The 1916 Derby winner went by George Smith.
Get your fancy hat out, mix a mint julep, and brush up on these facts that will impress your friends -then you'll be ready for the race! Link
(Image credit: Flickr user Lee Burchfield)