Denver Colfax Marathon

• Denver Colfax Marathon 2027: Course, Elevation & Race Guide

  The complete guide to the 2027 Denver Colfax Marathon on 16 May: a measured elevation profile of the whole course, every start time across the weekend's eight races, altitude pacing and where to watch.

• Denver Colfax Marathon 2026: Route Map, Course Guide & FAQ

  Everything you need for the 2026 Denver Colfax Marathon — interactive route map, mile-by-mile course breakdown, elevation profile, race logistics, spectator guide, and FAQs.

• Denver Colfax Marathon Relay 2026: Route Map & Team Guide

  Everything you need for the 2026 Denver Colfax Marathon Relay — 5-leg route breakdown, exchange zone locations, team strategy, and race logistics.

• Denver Colfax 5K 2026: Route Map & Course Guide

  Everything you need for the 2026 Denver Colfax 5K — a fast, family-friendly 3.1-mile loop through City Park with a finish at Ferril Lake.

• Denver Colfax 10 Miler 2026: Route Map & Course Guide

  Everything you need for the 2026 Denver Colfax 10 Miler — interactive route map, the famous Empower Field stadium run-through, Sloan’s Lake views, and race logistics.

• Denver Colfax Half Marathon 2026: Route Map & Course Guide

  Everything you need for the 2026 Denver Colfax Half Marathon — interactive route map, course breakdown, altitude tips, and race logistics for 13.1 miles through Denver.