/ Quizzes / Kentucky Derby Quiz Kentucky Derby Quiz by J. Gettings, M. Morrison, and G. BrownMore about the thoroughbreds and past Derby winners. Question 1 (out of 10): How long is the Kentucky Derby? 1 mile 1 14 miles 1 18 miles More Quizzes from Factmonster: Try another Sports Quiz ! Quiz Archive ©2022 Sandbox Networks Inc. All rights reserved. Sandbox Learning is part of Sandbox & Co., a digital learning company.