Welcome to the urban jungle
The Colfax Half Marathon is the only race to run through Denver Zoo!The 13.1 mile Colfax Half Marathon is the only race with a wild one mile run through Denver Zoo. Runners may wonder who's watching who in the zoo: the monkeys, mountain sheep, elephants and the rhino really get a kick out of the race. Enjoy fast, flat and shady boulevards in Denver's historic Park Hill neighborhood - and the favorite run through Aurora Fire Station #1. Along the way, enjoy some quintessentially Colorado entertainment.
Sorry, no spectators in Denver Zoo.
Find out about AARP's Coulda-Shoulda-Woulda contest and you could win free training with a personal trainer and free registration into the Half Marathon!
"The Colfax Marathon is an event that the city goes ape for every year! With the half marathon race snaking through the Denver Zoo, runners will get to enjoy a lion’s share of racing fun in one of Denver’s greatest cultural gems."
-- Denver Mayor Michael B. Hancock