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Thumbs Up Vertical Challenge

Estes Park, United States • 6 Dec 2025

Event overview

The Thumbs Up Vertical Challenge takes place in Estes Park, CO on December 6, 2025. The event consists of repeated ascents of the Thumb Open Space out-and-back trail. At the turnaround, runners collect one poker chip and deposit it in an assigned jar; chips are counted to determine finishing order. Entry is limited to 30 participants. Registration opens September 1, 2025 and closes December 5, 2025.

Course

The trail features a vertical gain of 540 ft per ascent. Terrain is single-track with switchbacks, steps and steep rocks. The Thumb Open Space is on the south side of Prospect Mountain; the town purchased 65 acres of the property in 2021 and it opened to public access in 2022. Users are asked to stay on the marked public trail.

Awards

  • 14 ascents - Estes Park, 7,522 ft
  • 18 ascents - Deer Mountain, 10,103 ft
  • 26 ascents - Longs Peak, 14,259 ft

A special award will be given to the overall winner. Visit the organization's website for the most recent information.

United States Colorado Estes Park

Race information

Website
2 Km Lap
Visit the organization's website for the most recent information.
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