Lake Sonoma Sufferfest 100 km

100K · Healdsburg, CA, US · 2027-04-10 · official site

Course

Distance62.1 mi
Distance (metric)99.9 km“Finish (62.1) ... DISTANCES ARE APPROXIMATE” source
Course typeout-and-back“an out and back of the original old school LS course” source
Elevation gain15,000 ft“ELEVATION GAIN 15,000 Feet” source
Net elevation0 ft“The 100K and 50K start and finish at the Lake Sonoma Visitor Center.” source

Getting there

Nearest townHealdsburg“Healdsburg, CA, with the address 3227 Stewarts Point-Skaggs Springs Rd” source
StateCA“Healdsburg, CA, with the address 3227 Stewarts Point-Skaggs Springs Rd” source
CountryUS“Healdsburg, CA, with the address 3227 Stewarts Point-Skaggs Springs Rd” source
Race starts atLake Sonoma Visitor Center, Healdsburg, CA“The Lake Sonoma 100k, 50k and start and finish at the Lake Sonoma Visitor Center.” source
Nearest major airportSFO“"distance":132815.3” source
Driving distance to airport82.5 mi“"distance":132815.3” source

Race day

Date2027-04-10
Start time05:00
Entry fee$300
Aid stations13
Drop bagsyes
Runners42

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