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Tri the Rock Kids Tri

September 14, 2025 @ 7:30 AM

We welcome you to our 17th annual youth triathlon! Tri the Rock is designed for, and open to youth ages 5 to 18. Come for a great day of fun, food, prizes and sport!

Age division participants for Tri the Rock compete based on age on RACE DAY. Be sure to register and prepare accordingly.

Race Distances (by age category)

15-18 years

  • 200 meter swim (eight pool lengths, down and back four times)
  • 16 kilometer bike ride
  • 3 mile run

11/12 years & 13/14 years

  • 100 meter swim (four pool lengths, down and back twice)
  • 8 kilometer bike ride
  • 2 kilometer run

7/8 years & 9/10 years

  • 50 meter swim (two pool lengths, down and back)
  • 4 kilometer bike ride
  • 1 kilometer run

5/6 years

  • 20 meter swim (one pool width)
  • 1 kilometer bike ride (one lap around Butterfield Park)
  • 500 meter run (small loop within Butterfield Park)

 

USAT

You DO NOT need a USAT number to participate in Tri the Rock.

 

Free Informational Clinic on Sunday, Sept 4 beginning at 1 p.m.

First time competing at Tri the Rock? Join us for the FREE clinic at Butterfield Park to learn all the ins and outs of this triathlon. Registration is required and space is limited.

Details

Date:
September 14, 2025
Time:
7:30 AM - 12:00 PM
Event Category:
Website:
Visit Event Website »

Venue

Butterfield Park
3952 Butterfield Crossing Drive
Castle Rock, CO 80109 United States
+ Google Map

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