Running Races in Frederick, Colorado 2026 | Browse All Races

There are 2 running races in Frederick, Colorado in 2026. The next is the CEROX + IRON on July 25.

Sat, Jul 25 · Frederick, CO Frederick

Cerox Iron Teams of 2Cerox IndividualCerox Teams of 2 +1

From $45 Open

Sat, Aug 22 · Frederick, CO Frederick

Cerox Iron X Teams of 2Cerox Iron IndividualCerox Iron Teams of 2 +1

From $45 Open

Running Races in Frederick, Colorado — 2026