Sign Up for the Santa Anita Derby Day 5K Now!
Sign Up for the Santa Anita Derby Day 5K Now! Last year, Derby Day 5K sold out before race day. Ready to join us in 2027? Registration opens October 22 at 8:00 AM Pacific—with special early bird pricing available only through Sunday, October 25! Get ready to run or walk through the beautiful Arboretum, finish…