/** Visit Denver Hotel Script **/ Brittany Charboneau, Colfax Marathon Winner, runs with her dad - Denver Colfax Marathon
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Brittany Charboneau, Colfax Marathon Winner, runs with her dad

Brittany won the Denver Colfax Marathon, but this year is running at her dad’s pace as she accompanies her 74 year old dad in his first Half Marathon.

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Two days. Eight races.
Which one will you run?

Be a part of Marathon Weekend.  May 15-17, 2026

Friday

  • Cigna Denver Colfax Marathon Expo

Saturday

  • Cigna Denver Colfax Marathon Expo
  • Colfax 5K

Sunday

  • Marathon
  • Half Marathon
  • Urban 10 Miler
  • Marathon Relay
    • Open Relay
    • Corporate Relay
    • Government Relay
    • Public School Teachers Relay

Register