19 APRSCORE
Horsetooth Half Marathon
Colorado
Latest edition
- Character
- Net Downhill
- Lakeside
- Coastal
- Mountain
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annual place calendar guide
2026 running race guide for Colorado, built from source-backed race dates, stored event-region values, route-map coverage, elevation profiles and distance breakdowns.
Dated race pages
Colorado
Latest edition
Colorado
Latest edition
Colorado
Latest edition
Colorado
Latest edition
GPS trace: 542 pts / www.epmarathon.org
Colorado
Latest edition
GPS trace: 932 pts / www.epmarathon.org
Colorado
Latest edition
Colorado
Latest edition
Colorado
Latest edition
GPS trace: 1,261 pts / hardrock100.com
Colorado
Latest edition
GPS trace: 191 pts / runsignup.com
Colorado
Latest edition
GPS trace: 729 pts / runsignup.com
Colorado
Latest edition
GPS trace: 347 pts / runsignup.com
Colorado
Latest edition
GPS trace: 729 pts / runsignup.com
Colorado
Next race
GPS trace: 542 pts / www.gtishalf.com
Colorado
Next race
Colorado
Next race
Colorado
Next race
Colorado
Next race
Colorado
Next race
Colorado
Next race
Colorado
Next race
Colorado
Next race
GPS trace: 1,225 pts / www.vailrec.com
Colorado
Next race
GPS trace: 1,443 pts / www.leadvilleraceseries.com
Colorado
Next race
Colorado
Next race
Colorado
Next race
GPS trace: 1,083 pts / runrabbitrunsteamboat.com
Colorado
Next race
GPS trace: 1,302 pts / www.pikespeakmarathon.org
Colorado
Next race
GPS trace: 1,325 pts / www.pikespeakmarathon.org
Colorado
Next race
GPS trace: 907 pts / www.utemountaineer.com
Colorado
Next race
Colorado
Next race
Colorado
Next race
Colorado
Next race
Colorado
Next race
GPS trace: 825 pts / thecoloradospringsmarathon.com
Colorado
Next race
GPS trace: 653 pts / thecoloradospringsmarathon.com
Colorado
Next race
GPS trace: 152 pts / thecoloradospringsmarathon.com
| Distance | Race pages | Mapped routes | Elevation profiles |
|---|---|---|---|
| Marathons | 5 | 3 | 1 |
| Half Marathons | 12 | 7 | 3 |
| 10Ks | 5 | 1 | 0 |
| 5Ks | 5 | 2 | 0 |
| Ultramarathons | 3 | 3 | 3 |
| Relays | 3 | 1 | 0 |
| Others | 2 | 0 | 0 |
All dated race pages in this annual calendar group.
All indexed race pages in this stored event-region location, across available calendar periods.
Month, season and year race guides built only from source-backed date evidence.
Mapped race pages with stored route geometry and elevation evidence where available.
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.
17 race pages in this guide currently have stored route geometry. Route traces appear only when stored geometry exists.
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.