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Summer Predictor Series

Leadville, United States • 30 Aug 2025

Summer Predictor SERIES - Derek Lindstrom is a fundraising running series featuring prediction games tied to two summer races. For 2025, events take place in Leadville, Colorado, and Marquette, Michigan, with the Leadville Trail Marathon (26.2 miles) and the Marquette Half Marathon (13.1 miles). Participants pay $5 per guess to predict finish times, and may submit multiple entries.

100% of net proceeds support Harboring Hearts, a charity aiding cardiac surgery and transplant patients and their families. After each race, the closest prediction wins 50% of the race’s total entries, with the remaining 50% donated to the charity. The series blends competition, community involvement, and philanthropy. Visit the organization's website for the most recent information.

United States Colorado Leadville

Race information

Registration
42 km
Leadville Trail Marathon
21 km
Marquette Half Marathon
Visit the organization's website for the most recent information.
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