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Sean o'Brien

Calabasas, United States • 25 Jan 2025

The Sean O'Brien event, taking place in Calabasas, CA, offers a range of challenging trail races including 100K, 50 Mile, 50K, Marathon (26.2 miles), and 30K on January 25, 2025. This event is notable as the 100K serves as a qualifier for the prestigious Western States 100. Participants can expect scenic views and a rigorous course that tests their endurance and skills. The event is designed for runners of various experience levels, making it a popular choice for trail running enthusiasts. Registration is currently open for those looking to take part in this exciting challenge. Visit the organization's website for the most recent information.

United States California Calabasas

Race information

Website Registration
100 km
100k
50 mi
50 Miler
50 km
50k
42 km
26.2
30 km
30k
Visit the organization's website for the most recent information.
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