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Trail Running Calendar near Mack 2026-2027

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Explore the top trail runs near Mack for 2026-2027! We've gathered 7 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

September 2026
Sep
12
Sa

Steele Trap Trail Run

Trail Run 13 mi 26 mi 50 mi
Low-key trail running event in Loma, Colorado offering Half Marathon, Marathon (26.2 Miles) and 50 Miler with a flat $50 entry fee. Registration runs April 5 to August 1, and participants may change distance on race day.
October 2026
Oct
3
Sa

Grand Valley Backyard

Backyard Ultra 4 mi
Last person standing backyard ultra on a 4.17 mile loop at the 18 Road trail system in Western Colorado, repeated hourly until one runner finishes the final loop.
Oct
17
Sa

The Great Pumpkin Haul

Trail Run 2 mi
A 2 mile event on 10/17/2026 in Fruita CO where participants pick a pumpkin included with entry then carry it across a course of fields, forests and hay bales.
November 2026
Nov
7
Sa

Kessel Run Ultra

Trail Run 10 mi 20 mi ... 40 mi 50 mi
Trail ultramarathon in Fruita, Colorado with multiple distance options from 10 miles to 50 miles, singletrack terrain, high desert views, and cupless aid stations with refill points.
April 2027
Apr
8-11
Th - Su

Desert Rats Trail Running Festival

Trail Run UTMB 20K/50K/100K 9 km Half Marathon 48 km 100 km
Three days of trail races in Fruita, Colorado with four distances, desert singletrack views, and qualifying opportunities for UTMB World Series and Western States.
May 2027
May
2
Su

The Pilgrimage

Trail Run 7 mi 11 mi ... 13 mi 220 mi
A 150 hour, self navigated ultra in Mack, Colorado with five off pavement routes, crewed and uncrewed divisions, and strict rules on pacers and navigation.
May
8
Sa

Colterris Wine Run 5k

Trail Run 5 km
A chip-timed 5k at Colterris Winery in Palisade, Colorado, with a two-lap cross country course, race swag including a collapsible wine glass and finisher medal, and a charity partnership with RiversEdge West.
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