new castle dirty dozen mtb and 10k trail running race

presented by

& Kim & Dalton Sallee

 
dirty dozen.jpg
 

The Dirty Dozen is back again in 2025 and we are offering the same amazing mountain bike and trail running races on the Colorow and Highland Trail System Networks. 

Race entries are:

Coming Soon!

FRIDAY 8/1 10K TRAIL RUNNING RACE

10K with 1,100 feet of climbing 6pm start time from VIX Ranch Park. Awards planned for 8:15 PM after the trail race.

https://www.strava.com/routes/3249122664550246826

SATURDAY 8/2 DIRTY DOZEN MTB RACE

20 miles on singletrack with 3,800 feet of climbing 7am start time from VIX Ranch Park. Awards details coming soon!

https://www.strava.com/routes/3249123182286760964

SATURDAY 8/2 DIRTY HALF DOZEN MTB RACE

7 miles on single track with 1,000 feet of climbing 9:30am start time from VIX Ranch Park. Awards details coming soon!

https://www.strava.com/routes/3249123462480612778

Friday 8/1 and Saturday 8/2 10K Trail Running and Dirty Dozen MTB Race Combo

If competing in one race just isn’t enough for you, register for both the MTB Race (20 mile course) and the 10K Trail Running Race and you will get your own category. Awards details coming soon!

See prize list below!

cash PRIZES

Dirty Dozen MTB Race

  • Coming Soon!

10K Trail Running Race

  • Coming Soon!

Dirty Half Dozen MTB Race

  • Coming Soon!

10K Trail Running and Dirty Dozen MTB Race Combo

  • Coming Soon!

Race Cutoffs

We will be enforcing time cutoffs on the Dirty Dozen MTB Race (20 mile course).

Racers that arrive at the bottom of the Sallee Key climb after 9:30am will be cutoff. Racers that arrive at the bottom of the Dante’s Peak climb after 10:15am will be cutoff. If you don’t make the time cutoffs you will have your race number pulled and you will be directed to the finish line by course marshals.

Additional Race Details

Use the Dirty Dozen Races tab at the top of the page to view race FAQs (aid station info), past results, and photos.