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In the Press

Denver Colfax Marathon joins with Cigna as new title sponsor

Read on 9News about Denver Colfax Marathon’s new Title Sponsor

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

Be a part of Marathon Weekend.  May 14-16, 2027

Friday

  • Denver Colfax Marathon Expo

Saturday

  • 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