5Khaos is proud to return for its sixth year of Mud, Fun, Music…Khaos. This course delivers a 5K of rolling terrain and 20+ obstacles.  Our race is 100% volunteer based with the 2017 proceeds benefiting Easterseals Central Illinois and Children’s Home + Aid .

Your registration with 5Khaos automatically benefits the previously mentioned organizations. To proportionally increase the benefit to either of these organizations, please use the unique racing code upon your registration.



Race participants must be 18 as of race day. All registrations are final.

Registration is completed on an individual basis BUT running as a team is highly encouraged. There is nothing better than crawling through the mud with a group of your closest friends and coworkers.

The competitive heat is unlimited, all other heats are limited to a maximum of 50 participants. If you are running as a team, make sure to sign up early to claim your heat.

5K – 9:00 Wave – Competitive
5K – 9:15 Wave
5K – 9:30 Wave
5K – 9:45 Wave

Register for the 9:00 heat to compete for prizes awarded to the overall Top 3 Women & Top 3 Men.

Awards are as follows:

  • Top 3 men & women for the competitive heat
  • Top 3 men & women per age group

Register early and save:


Early Bird Special

Until  Mar 23th, 2017 $38 per person


Getting ready for the Khaos

Mar 24th to May 23 - $43 per person

May 24 - June 23, 2017 - $48 per person

June 24 - July 23, 2017 - $53 per person 

Let’s get muddy!

July 24 through Race Day, August 19, 2017 $58 per person