Dick Collins Firetrails

SEP
25
2027
A September trail event at Lake Chabot offering Marathon, 50 Mile and 100K courses with UTMB qualification and a Bay Area 100 pathway.
Sat 25 Sep 2027
100 kilometers 50 miles Marathon

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Dick Collins Firetrails

Dick Collins Firetrails is an annual trail running event held each September in the East Bay hills around Lake Chabot, Castro Valley. The event offers multiple distances on the area's established trail network and uses the original Firetrails routing for its longer courses.

Distances

  • 100K
  • 50 Mile
  • Marathon

The 100K and 50 Mile courses run out from Lake Chabot following the traditional Firetrails route toward Lone Oak and then return. The marathon is a point to point route beginning near Tilden and finishing at the Lake Chabot area. The published start location for the event is Lake Chabot Marina.

The event is a UTMB qualifier and the 50 Mile is designated as a PA USATF Grand Prix race. Finishing the 100K also guarantees entry to the Bay Area 100 series event in the following season. The GoldKen Ticket awards entry to the Firetrails 100K to the top two men and top two women running their first ultra at the linked Skyline event.

Weather in the East Bay hills in fall can vary widely, from warm thermals along the Sea View Trail ridge to rain, fog, or cold. Course history, past results, and a Hall of Legends are part of the event's longstanding presence in the region. Visit the organization's website for the most recent information.

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