The Summit Mountain Challenge is a Mountain bike race series located in Summit County, Colorado. Take advantage of the various single track trails around Summit County, while competing against others. We have courses and age categories depepdning on your skill level. Register for the entire series to receive 30%. Following each race, participants over the age of 21 will receive a beer. Do not miss out on this outdoor party that is disguised as a bike race!
Day-of registration will be available for $35 beginning at 4:00pm on race day at each trail head, along with bib pickup. We accept Cash, Checks and Credit Cards.
The category start times listed on our website are subject to change:
Aug 15, 2026
Distance — 16K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 16K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 16K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 40K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 50K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 16K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 11K
Type — Cycling
15:30
$20.00
Aug 15, 2026
Distance — 13K
Type — Cycling
15:30
$20.00
Aug 15, 2026
Distance — 8K
Type — Cycling
15:30
$20.00
Aug 15, 2026
Distance — 9K
Type — Cycling
15:30
$20.00
Aug 15, 2026
Distance — 11K
Type — Cycling
15:30
$20.00
Aug 15, 2026
Distance — 13K
Type — Cycling
15:30
$20.00
Aug 15, 2026
Distance — 8K
Type — Cycling
15:30
$20.00
Aug 15, 2026
Distance — 9K
Type — Cycling
15:30
$20.00
Aug 15, 2026
Distance — Mountain Biking- Distance depending on venue - Non Binary Open
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 60K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 45K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — Mountain Biking- Distance depending on venue - Pro Open Men
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — Mountain Biking- Distance depending on venue - Pro Open Women
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 16K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 16K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 35K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 50K
Type — Cycling
15:30
$29.00
Aug 15, 2026
Distance — 16K
Type — Cycling
15:30
$29.00
These values represent the 3-year monthly averages for August in Dillon.
Learn more about the host city, Dillon.
Dillon is a home rule town located in Summit County, Colorado, United States. The town population was 1,064 at the 2020 United States census, a +17.70% increase since the 2010 United States census.
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