The Get Your Butt Kicked @ Route 66 returns to Eureka, Missouri on July 18th, offering runners a chance to test their endurance along the scenic Meramec River in Route 66 State Park. The race features both three-hour and six-hour options for participants of all levels, from newcomers to seasoned ultrarunners. Runners will navigate flat trails through shaded woodlands within the park's northwest corner.
6hrs 6 Hours • Start: 18:00:00 • Fee: $65.00
3hrs 3 Hours • Start: 19:30:00 • Fee: $58.00
On race morning at dawn, the temperature typically ranges between 20.9°C and 31.3°C with an average feeling like 26.1°C due to high humidity levels of around 75%. The trail conditions are hard and dry, providing a challenging but fair surface for running. Given that darkness falls around 8:30 pm, runners opting for the evening start must be prepared with lighting equipment such as headlamps or handheld lights. Established by the Saint Louis Ultrarunners Group (SLUG), this event has become an integral part of the local ultramarathon community over its three years running. In recent editions, it has sold out in the final weeks due to high demand from runners seeking a unique and challenging experience. Participants aim to complete as many timed loops along the 2.425-mile route as possible within their chosen time limit. The race course is set against the backdrop of Route 66 State Park’s scenic Meramec River, featuring flat terrain that winds through shaded woodlands. The loop path consists mainly of thin pavement and chip-n-seal surfaces interspersed with fine gravel sections. Given the mid-summer conditions, runners should plan for high temperatures and humidity levels, making proper hydration essential throughout the race. Runners can choose between a 6-hour or 3-hour event option, each starting at specific times: 6 pm for the longer duration and 7:30 pm for the shorter. The course layout allows participants to maximize their distance by switching from long loops (2.425 miles) to short ones (0.333 miles) as time permits, with only completed laps counting towards total race distance. Registration is available at https://ultrasignup.com/register.aspx?did=137042 for both the 6-hour ($65.00) and 3-hour ($58.00) races until sold out. Participants must collect their bibs from Race Headquarters located near Forest Shelter, Route 66 State Park, on race day before starting times. Bring identification as proof of age if under 18. The Get Your Butt Kicked @ Route 66 in Eureka, Missouri, on July 18th is a testament to the endurance and spirit of runners who embrace the challenge of running through hot summer nights along scenic trails. It offers not only personal achievement but also community support for those pushing their limits against the elements.
Races Offered
6hrs
Jul 18, 2026
straighten
Distance —
6 Hours
terrain
Type —
Running
timer
18:00
sell
$65.00
3hrs
Jul 18, 2026
straighten
Distance —
3 Hours
terrain
Type —
Running
timer
19:30
sell
$58.00
Weather History
These values represent the 3-year monthly averages for July in Eureka.
thermostatTemperature
20.9° / 31.3°
wb_sunnyFeels like
22.6° / 33.3°
light_mode
Avg sunshine hours
11h 54m
water_drop
Avg rainfall
4.3 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
8.4 km/h (Light breeze)
opacity
Sweat loss rate
Very high
terrain
Course conditions
Hard and dry surface
sunny
Max UV Index
Very High (8.0)
humidity_mid
Humidity
75.6%
wb_twilight
Sunrise
05:51
nightlight
Sunset
20:23
About Eureka
Learn more about the host city, Eureka.
Eureka is a city in Humboldt County, California. With a population of slightly over 25,000, it is the largest coastal city on the West Coast of the United States north of San Francisco and south of Portland and the center of the California North Coast. Eureka is Ancient Greek for "I have found it," and the city got its name as a hopeful statement made by miners during the California Gold Rush, but it was the timber industry that gave the town its early wealth. Now, with logging in decline, it retains the charm of that era with older Victorian buildings and the feel of an old-fashioned working town.