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JustTri

Derby, Kansas, United States View on map
Jul 26, 2026 (America/Chicago local time)
Triathlon

About this race

The JustTri Youth Triathlon encourages youth to try something new while embracing a healthy lifestyle. It's an opportunity that impresses on them values like courage, discipline, determination and dedication. We hope they learn to love the journey and that it lasts a lifetime! 

This year's race will be on Sunday, July 26 at Rock River Rapids Water Park in Derby, KS. 

Age groups and distances:
7-10 years old
Swim: 50 meters
Bike:   3 miles
Run:    ½ mile

11-14 years old
Swim: 100 meters
Bike:   6 miles
Run:    1 mile

Finisher medals for everyone who crosses the finish line, plus 1st place boys and girls of each age.

Packet Pickup
Saturday, July 25, 5-7pm at Rock River Rapids Open Shelter

Race Day
6-7am, Transition area open          
7am, Racers report to pool area 
7:30am, Race Start Time 

Swim
- The swim will take place in the Rock River Rapids lap pool. Swimmers will be started one at a time every 20 seconds and swim in serpentine style course.
- The 7-10 age group will start at the South end of the lap pool and swim down once for 50 meters.
- The 11-14 age group will start at the North end of the lap pool and swim down and back once (100 meters)

Bike
- All cyclists must wear helmets and appropriate shoes (no open toe, sandals, etc.). The bike transition will exit on the West side of the parking lot, turning left on College Hill, then left on James street. Riders will continue east on James St. and make a right turn into High Park. Riders will remain on main access road through High Park until they reach the marked turnaround at which time they will head back to Rock River Rapids on the same route. 
-The 7-10 age group will complete this loop one time for 3 miles
-The 11-14 age group will complete this loop two times for 6 miles

Run
- After they park their bike, runners will exit the transition area towards the East and proceed through the parking lot until they get to James St. where they will take a left. Runners will stay on the sidewalk for an out and back route. 
-The 7-10 age group will reach a turnaround point after 1/4 mile
-The 11-14 age group will have a turnaround at the 1/2 mile mark         
    

This race would not be possible without our sponsors. Thank you to our Presenting Sponsor, Bicycle Exchange! 

Pick your distance

Triathlon

JustTri 7-10 Years Old

Swim: 50 meters Bike: 3 miles Run: ½ mile

Jul 26, 2026 JustTri 7-10 Years Old 7:30 AM
$35.00
Closed

JustTri 11-14 Years Old

Swim: 100 meters Bike: 6 miles Run: 1 mile

Jul 26, 2026 JustTri 11-14 Years Old 7:30 AM
$35.00
Closed

Typical race-day weather

Based on 3 years of historical conditions on this event's race dates in Derby.

Temp (°C)
Minimum temperature (race-day average) 23.6° / Maximum temperature (race-day average) 34.0°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) 23.6° / Maximum feels like — heat index / wind chill (race-day average) 43.9°
Wind (km/h)
Average wind speed (race-day average)
19.3
Precip (mm)
Average precipitation (race-day average)
2.4mm
Humidity
Average relative humidity (race-day average)
64.2%

Course

Route map and elevation profile

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Other races near Derby

Different organizers, within 40 miles, in the next three months

Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 4 Derby events

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