Aug 04, 2023 at 6:00 AM

Silverton Ultra Dirty

1 Kendall Pl

Silverton CO, 81433


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Entry Fee $175
(Lowest or Early Registration)

Entry Fee 2 $225
(Highest or Late Registration)

Prize Money: no


  • 100K
  • 100M
  • 60K

Series: Dirty 30 Trail Race Series

Type: Ultra

Participant Limit: 300

Course Map: Download Map

Starting Elevation: 9400

High Point: 12800

Percent of the course on un-paved trails: 100%

First Year of the Event: 2016

Men's Record: M: 13:38:34

Masters Men Record: MM: 13:38:34

Women's Record: W: 13:09:11

Masters Women Record: WM: 19:49:11


Mountain ultra-running at it’s best. The Silverton Ultra Dirty challenges you, push your limits, teases your senses as you journey along these AMAZINGLY SPECTACULAR 100M, 100K & 60K courses. The 100M race starts in Durango at the southern terminus of the Colorado Trail and runs north on the Colo Trail and runs the last 39 miles with the 100K course.  All three distances run many miles along the most spectacular section of the Colorado Trail and on 10 stunning miles of the Hardrock 100 course. The SUD is a remote, high mountain, single-loop course with 98% single-track trails. Placed perfectly on the calendar to hit the peak of wildflower season and roaring waterfalls, you will run in complete awe of the magic of the San Juan Mountains.  With approx 24,500 ft of climbing/descending in the 100M, 12,631 ft. in the 100K, and 7,337 ft in the 60K, with 60% above 11,000′ elevation these courses are without a doubt challenging . . . but if it were easy it wouldn’t be worth it.  Come discover what is possible for you.



Past Event Dates

Held on Aug 04, 2023

Held on Aug 05, 2022

Held on Aug 06, 2021

Held on Aug 01, 2020

Held on Aug 03, 2019

Held on Aug 11, 2018

Held on Sep 23, 2017

Held on Sep 24, 2016

Event Results

View 2019 Results

View 2018 Results

View 2017 Results

View 2016 Results