Tri the Rock

It's waiting for you ... all you have to do is try! 

Come for a day of fun, food prizes and sports. This annual youth triathlon is for young athletes ages five to 14. 

From kids who have never even heard of a triathlon to seasoned competitive triathletes, Tri the Rock encourages kids to get out and give it a try. 

Race information

Sunday, May 19, 2019

6:30 a.m. - bike racks open
8 a.m. - race begins

Butterfield Crossing Park and Pool
3952 W. Butterfield Crossing Drive

2019 Results

Pre-race packet pick-up 

Saturday, May 18, noon-2 p.m.

Castle Rock Recreation Center
2301 Woodlands Blvd.

Can’t make it to pre-race packet pick-up? Visit the packet pick-up table on race day. Be sure to arrive early to allow plenty of time for your packet pick-up on race day.
Tri the Rock youth


Don't miss signing up for our Training Camps and First Timer Clinic

Race distances

Age Divisions

Tri the Rock now competes based on the athlete's age as of RACE DAY. Be sure to register accordingly.
  1. 5-6 years
  2. 7-8 years and 9-10 years
  3. 11-12 years and 13-14 years

5-6 years

  • 25-meter swim (one pool length)
  • 1-kilometer bike ride (one lap around Butterfield Park) - course map
  • 500-meter run - course map
  • Please note: check-in for this age group does not begin until 10:30 a.m.

Tri the Rock Trophy

Tri the Rock encourages kids to get active and try something new.  Be sure to indicate your school or club during registration as the school with the most participants will get the honor of displaying the Tri the Rock trophy for the next year! 

2018’s Tri the Rock race results

View 2018 race results
View race day pictures!

Looking to help out?

We couldn't do it without you! Volunteer shift sign-up available at