Nut Job Challenge

Over the years, we have learned that some of our participants are certifiably nuts!  Many of you can’t get enough running and are always looking for the next challenge.  Well, now we have just the thing for you! We are proud to announce the 4th Annual Frederick Nut Job Challenge.  Runners who complete both the CareFirst Half-Marathon on Sunday and The Twilight 5K on Saturday will receive a special Nut Job race bib valid for both events AND earn a custom Nut Job medal. Medals will be distributed following the completion of the half marathon.  Your special bib will help our volunteers and eveyone else identify you as a Nut Job (and let them know to run the other way… very quickly!)


A prize will be awarded for the 1st place overall Male & Female in the Frederick Nut Job Challenge – awards are based on the combined finishing chip time in the Half & 5K.


Select this category in the registration process and we will make sure you receive your special Nut Job race bib at pick-up. By registering using this category you will SAVE $5 OFF your total combined registration fee. If you have already registered for one of the race distances but did not register for the Nut Job, simply register for the other race and then fill out the form below to let us know you are a Nut Job!  The deadline to link your races together into the Nut Job Challenge is April 20 at 11:59pm.
Please Note:  If you register for each level separately and link them together into the challenge, you waive your right to the discount.

  • Register for both the 5K and Half Marathon before filling out this form.
  • Register for both the 5K and Half Marathon before filling out this form