
JustTri is a triathlon race on July 26, 2026 in Derby, KS, with an entry fee of $35.
From the Organizer
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!
Events
Weather
Live forecast from the U.S. National Weather Service.
Race Day
Sunday, 7/26
High
102°
Low
80°
Conditions
Sunny
Chance of Rain
1%
Wind
6 to 10 mph
Host City
Population
25,801
as of 2023
City Elevation
1,277 ft
Nearest Airport
ICT
Wichita Dwight D. Eisenhower National Airport · 12 mi
Major Hub
TUL
Tulsa International Airport · 120 mi
Time Zone
Central Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at JustTri, put it on the calendar, and turn “someday” into a start date.
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From Endurance Grid
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Three sports, one race — swim, bike, run in sequence, with transitions that are a discipline of their own.
Open water, open roads, and competition with yourself. Cross the finish line knowing what it took to get there.
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.
Coming Up
United Way of McPherson County Triathlon 2026
61 miles away
Shawnee Mission Triathlon and Duathlon
167 miles away
Kill Creek Park Triathlon, Duathlon, Aquabike, & Aquathlon
155 miles away
JCPRD Kids Triathlon
160 miles away
Plan your trip
Coming from out of town? There's more to Derby than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to DerbyFrequently Asked Questions (FAQs)
JustTri
Jul 26, 2026