When
Saturday, October 10th, 2026
Where
Lake Merced Blvd Parking Lot (North), San Francisco CA
Distances
Ultra
Typical weather
55–67°F · low rain risk
See last 10 years
On this date: rain 0 of the last 10 years
2025
55–68°F
dry
2024
56–62°F
dry
2023
59–65°F
dry
2022
53–58°F
dry
2021
53–62°F
dry
2020
58–66°F
dry
2019
52–74°F
dry
2018
56–62°F
dry
2017
54–67°F
dry
2016
54–62°F
dry
Best months to race in California →
About this race
The course is a 4.5 mi loop around Lake Merced.
Course map
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