13th Annual Mammoth Run 5K/10K on Sunday, October 4, 2026

The Rotary Club of Moorpark and Rotary Club of Simi Sunset present the 13th Annual Mammoth Run 5K/10K and Family 1 Mile Fun Run/Walk on Sunday, October 4, 2026.

Runners can enjoy the beauty of Moorpark's unique landscape and compete in a fast, mostly flat 5k/10k race. There's also a 1 mile fun run/walk planned. Registration and check-in begin at 7:00am.

Event proceeds benefit local charitable organizations, including the Food Pantry, the Boys & Girls Club, and The Rotary Foundation's ongoing mission to eradicate polio worldwide.

The event will take place at Arroyo Vista Community Park, 4550 Tierra Rejada Road. Races start at 8:30am. Learn more at www.mammothrun.org.