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annual place calendar guide

2026 running races in Colorado

2026 running race guide for Colorado, built from source-backed race dates, stored event-region values, route-map coverage, elevation profiles and distance breakdowns.

2026 running races in Colorado coverage

35Dated race pages7Distances17Mapped routes7Elevation profiles49%Map coverage

Dated race pages

All 2026 races →

2026 running races in Colorado by distance

2026 race, route-map and elevation-profile coverage in Colorado by distance
DistanceRace pagesMapped routesElevation profiles
Marathons531
Half Marathons1273
10Ks510
5Ks520
Ultramarathons333
Relays310
Others200

Colorado route-map collections

2026 running races in Colorado questions

What 2026 running races in colorado are included?

This guide includes 35 race pages whose latest source-backed race date falls in 2026 and whose stored event-region value is Colorado. Nearby races by radius are not included. It does not infer annual recurrence unless that edition date is present.

Which 2026 running races in colorado have route maps?

17 race pages in this guide currently have stored route geometry. Route traces appear only when stored geometry exists.

How are featured 2026 running races in colorado ordered?

Featured races are ordered by race date first, then by available evidence such as route geometry, elevation profiles, route metrics, cost data and race-character tags.