Dirty Spokes Mountain Bike Race

The annual Dirty Spokes Mountain Bike race is again being held on the trails of Castlewood State Park.  This race is open to all abilities. Helmets are required. A confirmation e-mail will be sent out a week before the race with event details. 

When: Sunday, April 14, 2019 (9:00 a.m. or 10:30 a.m.)
Where: Castlewood State Park
Fee: $30 ($40 after March 17-t-shirts guaranteed to those who register by March 17) Race Day Registration begins at 7:30 a.m.
Ages: 12 years and up
Registration*: Register in person at The Pointe at Ballwin Commons OR

Register Online

*T-shirts guaranteed to those who register by March 17. Online registration ends Friday, April 12 at Noon. If you'd like to register after that, you may do so on site on race day beginning at 7:30 a.m.

Course Map

View the Course Map

Race Categories

The race is divided into three categories:
Category A: 5 Laps-Reserved for the advanced, experienced rider (starts a 9:00 a.m.)
Category B: 3 laps-Reserved for the intermediate rider (starts after completion of Category A -approx. 10:30 a.m.)
Category C: 2 lap-Reserved for the beginner and younger riders (starts along with Category B)
*1 lap is approximately 4 miles 

Past Results

For more information or questions, contact Matt Struemph at 636-227-8950 or