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Folsom 100

Name: Folsom 100
Start: 2025-08-01
End: 2025-08-01
Location: Granite Bay

Granite Bay, United States • 1 Aug 2025

The Folsom 100 is an exhilarating 100-mile ultramarathon that takes place around Folsom Lake, California. Scheduled for August 1, 2025, this challenging race features a point-to-point course with a single out-and-back section. Participants have 34 hours to complete the loop, which includes stunning views and diverse terrain, primarily on trails with some paved sections.

The event also offers a 54-mile race and a 100-mile two-person relay option. Runners can expect multiple aid stations and awards for finishers, including buckles for those completing the 100-mile distance. Proceeds from the race support local charities. Visit the organization's website for the most recent information.

United States California Granite Bay

Race information

Website

100 mi

100 Miles

54 mi

54 Miles

20 mi

20 Miles

Visit the organization's website for the most recent information.

Trail runs nearby

Sat - Sun Jun 13-14

Cool Moon Trail Races

...

A multi-distance trail event in Cool, California on June 13 and 14, 2026 featuring 13.5 and 11.5 mile loops, live runner tracking, single track and fire road terrain, and finisher awards for every distance.

Sat - Sun Jun 13-14

Cool Moon 100 Mile Endurance Run

Cool

100 mi

A 100-mile trail event on two alternating loops in Cool, California, totaling about 13,600 feet of elevation gain. The race features marked single track and fire roads, aid stations, chip timing with live tracking, and handcrafted finisher..

Thursday Jun 25

Run Fast or Pretend Like You Are 100 Mile Relay

Auburn

1 mi

A community 100 mile project in Auburn with two options: a 100 runner relay where each runner covers 1 mile, or a 100 mile in 20 days individual challenge with a finisher buckle.

Saturday Jul 11

Iron X

Auburn

Half Marathon

An unconventional half marathon in Auburn that blends running with extreme ironing, requiring participants to iron a button up shirt at multiple public locations while remaining self supported and documenting each stop on video.