In 285 days · Sat, Jul 17, 2027
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Saturday, July 17th, 2027
Balzer Field parking lot, Los Gatos CA
10K · 5K
58–87°F · low rain risk
See last 10 years
On this date: rain 0 of the last 11 years
2026
55–83°F
dry
2025
52–87°F
dry
2024
53–81°F
dry
2023
65–97°F
dry
2022
58–89°F
dry
2021
55–91°F
dry
2020
57–83°F
dry
2019
55–87°F
dry
2018
57–87°F
dry
2017
63–89°F
dry
2016
55–72°F
dry
Best months to race in California →
Race-day ready
Everything but the shoes.
Real running socks, a bib belt, anti-chafe — the cheap upgrades that matter.
About this race
At the Jolly10k you'll take a 10K or a 5K run or walk, through stunning Los Gatos mountain trails and arrive back at the finish line to enjoy fun, food and fellowship. We have informational booths, a variety of resource tables, CPR training by the Los Gatos Fire Dept. We definitely have fun, but the reason we gather for the Jolly10k is to create a safe environment to have the difficult conversations about addiction and the deadly epidemic of Fentanyl that has flooded our country and stolen far too many young lives. Together, we remember our loved ones and share life-saving information on how to prevent the next life lost from being someone in your family.
Course map
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Run clubs near Los Gatos to train with before race day.
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