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Youth & Adult TRYathlons

Swim, bike, run for fun! This is the perfect starting point to try a tri. These races are about completion, not competition. All athletic levels are welcome. The only prerequisite is that you must be able to swim unassisted in deep water.

TRYathlon Dates

  • Sunday, June 28, 2026 Goodson Recreation Center
  • Saturday, July 25, 2026 Cook Creek Pool

Online registration opens March 1. 

Online registration closes at 11:59 pm the Thursday before each event.

Day-of registration opens at 6am on race day.  

Goodson TRYathlon

Date and Location

Sunday, June 28, 2026 at Goodson Recreation Center in Centennial.

Age group times and distances

Age divisions are flexible. Please choose your race based on your age or your desired race distance. E-bikes are not permitted.

Age Start Time Swim Bike Run
5-7 8:00 am 25 yd .5 mi .5 mi
8-9 7:15 am 50 yd 1 mi 1 mi
10-12 6:30 am 100 yd 1.5 mi 1 mi
Adult (13+) 8:30 am 150 yd 6 mi 3 mi
Course map
Register

Pre-Registration: $25
Day of (opens at 6am): $30

Register

Cook Creek TRYathlon

Date and Location

Saturday, July 25, 2026 at Cook Creek Pool in Lone Tree.

Age group times and distances

Age divisions are flexible. Please choose your race based on your age or your desired race distance.

A mountain bike or hybrid type of bike is highly recommended for 10-12, Elite & Adult division bike portions. E-bikes are not permitted.

Age Start Time Swim Bike Run
5-7 8:40 am 25 yd .5 mi .5 mi
8-9 7:55 am 50 yd 1 mi 1 mi
10-12 7:10 am 100 yd 1.5 mi 1 mi
Elite Division (8-14) 6:30 am 150 yd 2 mi 1.5 mi
Adult (13+) 9:10 am 200 yd 4 mi 2 mi
Course maps
Cook Creek TRYathlon Youth Race Map
Cook Creek TRYathlon Adult Race Map
  
Register

Pre-Registration: $25
Day of (opens at 6am): $30

Register