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California · Monrovia
SISU
Date TBA
SISU 24 runs at Camp Trask in Monrovia Canyon Park in the San Gabriel Mountains, offering a 24-hour timed format and a 100-mile challenge — runners choose their own loops from base camp, checking in between efforts. The 100-mile option carries a 36-hour cutoff and averages 15,000 to 25,000 feet of gain depending on loop selection. Three days of camping are included, the base lights up with movies and midnight yoga, and proceeds support Camp Trask restoration. Last confirmed edition was July 2024.
The numbers
Race statistics
- Distance
- 100 mi
- Course
- Loop
- Lottery
- No
5 mi loop
◈ From the runners