# 5K Races in Boulder, CO (2026)

> 5 upcoming 5K races in Boulder, Colorado.

- **Page:** https://runthis.run/races/colorado/boulder/5k

## Races

- **[Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States - Colorado](https://runthis.run/event/rs-205779-running-for-childrens-rights-to-both-parents-9-of-50-half-ma)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Boulder, CO · Marathon / 5K / 10K
- **[Alpine Bank Boulder Thanksgiving Day 5K](https://runthis.run/event/rs-146873-alpine-bank-boulder-thanksgiving-day-5k)** — Thu, Nov 26, 2026 · 12:00 AM UTC · Boulder, CO · 5K / 800 m
- **[Hands & Voices New Year Virtual 5K: Trails to the Summit](https://runthis.run/event/rs-117629-hands-voices-new-year-virtual-5k-trails-to-the-summit)** — Thu, Dec 31, 2026 · 12:00 AM UTC · Boulder, CO · 5K
- **[Emerge 5K](https://runthis.run/event/rs-200762-emerge-5k)** — Sun, May 2, 2027 · 12:00 AM UTC · Boulder, CO · 5K
- **[Alpha 5K Challenge](https://runthis.run/event/rs-213662-alpha-5k-challenge)** — Sat, Jun 12, 2027 · 12:00 AM UTC · Boulder, CO · 5K

## Nearby

- [All races in Boulder, CO](https://runthis.run/races/colorado/boulder.md)
- [5K races in Colorado](https://runthis.run/races/colorado/5k.md)

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Source: [https://runthis.run/races/colorado/boulder/5k](https://runthis.run/races/colorado/boulder/5k) — data from Run This (runthis.run).