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Castlewood Adventure Race

Name: Castlewood Adventure Race
Start: 2026-12-05
End: 2026-12-05
Location: St. Louis

St. Louis, Missouri, United States

calendar_today 05 Dec, 2026

directions_run Running

language Official Website

sell $150.00 – $600.00

About the Event

Named by Terrain Magazine’s Readers as the Best Adventure Race in the area, the Castlewood 8-Hour Adventure Race© has grown to become the third-largest adventure race in the country. And it’s all happening right here in St. Louis.

What is Adventure Racing? A multi-sport, off-road, team event with no marked course. Teams must use a map and compass to navigate their way through a series of checkpoints on mountain bikes, in canoes, and or on foot to reach the Finish line.

How long is the race? Expect to cover 5-10 miles paddling, 15-20 miles biking, and 5-10 miles on foot. Please see the Frequently Asked Questions section for more information.

Race Location: That’s a secret! Part of the appeal of adventure racing is charging into the unknown on race day. A course overview will be available closer to race time to help you plan your gear and food. Plan on four to eight hours of continuous movement through the woods, rivers, and roads of the St. Louis area. (Even though the event is named after Castlewood State Park, we may not necessarily even go through the park on race day!)

Team Configurations:

SOLO
2-Person (Co-Ed, Men’s, and Women’s Divisions)
4-Person (Co-Ed, Men’s, and Women’s Divisions)
Family (2+ related people, one over 18 and one under 18, one canoe per team)

water_drop Avg rainfall

2.0 mm

ac_unit Avg snowfall

0.1 cm

air Avg wind speed

11.8 km/h (Light breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Low (2.0)

humidity_mid Humidity

74.4%

wb_twilight Sunrise

08:10

nightlight Sunset

17:41

About St. Louis

Learn more about the host city, St. Louis.

St. Louis is an independent city in the U.S. state of Missouri. It lies near the confluence of the Mississippi and the Missouri rivers. In 2020, the city proper had a population of 301,578, while its metropolitan area, which extends into Illinois, had an estimated population of over 2.8 million. It is the largest metropolitan area in Missouri and the second-largest in Illinois. The city's metropolitan statistical area is the 23rd-largest in the United States.