In 23 days · Sat, Oct 31, 2026
Don't let race day sneak up
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When
Saturday, October 31st, 2026
Where
Castlewood State Park, Ballwin MO
Distances
10K · Half · Ultra
Typical weather
45–61°F · some rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
38–62°F
dry
2024
49–72°F
rain
2023
29–41°F
dry
2022
52–60°F
dry
2021
45–58°F
dry
2020
40–62°F
dry
2019
31–39°F
dry
2018
49–67°F
rain
2017
32–44°F
dry
2016
56–75°F
dry
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About this race
The Skippo began in 2009 as a 20k trail race in beautiful Castlewood State Park that featured two 10k loops on a fairly flat course except, of course, for the famous stairs! In 2011, we wanted to involve as many runners as possible so we added two more options, a 10k and a 30k. The Skippo then evolved into a two-day format in order to accommodate growth and popularity. In 2019 the 20k was changed to a Half-Marathon, and thus the modern day SKIPPO was born.
Consider entering the team competition for the Skippo Saturday 10k! Sign up, convince a few friends to join you and come see if you are St. Louis' fastest trail team. Up to Five people may join the same team, and the three fastest members of your team will have their times combined to determine the winner.
Course map
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