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

Be a part of Marathon Weekend.  May 19-21, 2023

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

Register