Tri the Rock
Come for a day of fun, food, prizes and sports — Sep 13 at Butterfield Crossing Park, Castle Rock. 6:30 AM. $60 plus tax and fees.
Sunday, September 13, 2026
6:30 AM - 11:30 AM
$60 plus tax and fees
About This Event
Come for a day of fun, food, prizes and sports. This annual youth triathlon is for athletes of all skill levels ages 5 to 18 years old. Tri the Rock encourages kids to get out and give it a try.
About the Venue
Butterfield Crossing Park
Park in Castle Rock featuring outdoor pool, pavilions, sports fields, courts, playgrounds, and an inline skating rink.
★ 4.6 (395 reviews)
View full details →Castle Rock Crew · free weekly email
I send events like this one for Castle Rock every Tuesday morning. No crime, no politics, no noise.
Similar Events
Monday, October 12, 2026
RNK Monday Trail Run: Hidden Mesa
RNK Running and Walking
Monday, October 12, 2026
Trails N' Ales Run Club at 105 West
105 West Brewing Company
Saturday, October 17, 2026
ACTV Studio IRL: Vuori Castle Rock x SHRED415
Outlets at Castle Rock
Monday, October 19, 2026
Trails N' Ales Run Club at 105 West
105 West Brewing Company
Never miss an event
Get weekly event picks, new openings, and local updates delivered to your inbox. Join 14,000+ Douglas County locals.
Subscribe Free