March 21, 2026 · Two Harbors to Avalon, Catalina Island, California, USA
26.2 mi (42.2 km)RunningMarathon

Catalina Island Marathon

Island. Trail. Views.

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Two Harbors to Avalon, Catalina Island, California, USAIsland. Trail. Views.
Course intelligence

Know the course before you race it.

Terrain

Point-to-point on trails across Catalina Island. 4,000 ft of climbing on dirt roads and fire roads with spectacular Pacific Ocean views. No paved sections.

Conditions

March on Catalina: 55–72°F. Coastal marine layer possible. Wind on the exposed ridge sections. Cattle and bison on the course.

Aid Stations

Six aid stations over 26.2 miles — fewer than most marathons. Athletes must carry more between stations.

Key Challenge

Fewer aid stations than a road marathon means athletes who depend on race-provided nutrition must plan carefully. Carrying your own gels is non-negotiable on this remote island course.

Fueling questions

Nutrition answers for Catalina Island Marathon.

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