Only until race start! Register! Saturday, April 18, 2020

What is the Sly Fox?

What is the Sly Fox? ... its a half marathon, 5k, and 10K started in 2015....and in it's first year it quickly became a favorite among racers . Join us in 2020 to find out why it's loved by so many.

NEW 5K route added in 2020!!!  On Saturday, April 18th, 2020, the Sly Fox 5k will begin at 7:30 am, the Sly Fox 10K will begin at 7:20am, and the Sly Fox Half Marathon will begin at 7:00am in downtown St. Charles, IL. Our race route is a mix of flat to rolling terrain that will bring athletes through the beautiful shaded residential streets and the countryside of St. Charles. This course is designed for athletes from beginners to the experienced. Our race is very spectator friendly, offering easy to get to viewing points throughout the course. As a participant in the Sly Fox Half Madness 5k and 10K, each athlete will receive a technical t shirt, finisher medal and a ticket for complimentary food and beer.

The Sly Fox Half Madness 5k, and  10K are USATF certified races .

Race Day: Saturday, April 18, 2020

Half- 7am Start!
10K- 7:20am Start!

5k - 7:30 am Start!



5:30-6:30 am: Race Day Packet Pick Up
6:00 am SHARP: Volunteer Check-In (TBA)
7:00 am: Half Marathon Race Start
7:20 am: 10K Start

7:30 am: 5k Start
8:15 am: Post Race Party Begins
10:00 am: Course Close
10:00 am- 11:30 am: Post Party