location_city Ballwin
location_on Missouri
flag United States
calendar_today 31 Jan, 2026
directions_run Running
language Official Website
RegisterThe 2026 Castlewood Cup returns to Castlewood State Park. Join us for some of the most beautiful scenery and well maintained single track in Missouri! A perfect combination of hills, switchbacks, and (some!) flat terrain await you. Break up the winter monotony and get back into the woods!
Jan 31, 2026
Distance — 15K
Type — Trail running
10:00
These values represent the 3-year monthly averages for January in Ballwin.
Ballwin is a western suburb of St. Louis in St. Louis County, Missouri, United States. The population was 31,103 as of the 2020 census.
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location_on Glencoe, Missouri, US
calendar_today Jan 24, 2026
location_on Maryland Heights, Missouri, US
calendar_today Jan 24, 2026
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