Atomic Kids Fall Triathlons
About this race
Come join this youth event of triathlon hosted by National Fitness Center for kids ages 2-14! Register for a choice of 3 races:
Long Sprint - 8:00 am start - 100 yard swim/3.0 mile bike/1 mile run
Mid Sprint - 8:45 am start - 50 yard swm/1.5 mile bike/.5 mile run
Tadpole Sprint - 9:20 am start - 25 yard swim/.75 mile bike/.5 mile run
Ages 2 to 14, can do any race based on distance and start time. For the tadpole sprint, the kids can watch the first race to get an example of how it's done. They are allowed to make use of water wings or a floatation device to help them "get their feet wet" in the sport of triathlon. The smaller kids may also use training wheels in the shorter distance.
Finisher medal for each participant, age group awards for Long and Mid sprint.
The swim will take place in the pool at the National Fitness Center in Oak Ridge at 750 Briarcliff Ave. The bike route will go out to Fairbanks road turn left, to Jefferson Middle School and turn around in the looped parking lot and then head back to transition. The sprint race does 2 laps. Run course goes out to Laboratory Dr and loops back around for sidewalk route back to Home Depot entrance back to finish line at National Fitness Center Parking lot. 2 loops for longer distance. The tadpole bike course will remain solely in the parking lot in a blocked-off section for safety and parental support. The run will follow the same course as the longer race, only with an escort if needed.
Pick your distance
Triathlon
Triathlon Long Sprint
Triathlon Mid Sprint
Tadpole Triathlon
Typical race-day weather
Based on 5 years of Open-Meteo archive data for this event's race dates in Oak Ridge, plus the 3 days either side.
The sun rises at 7:28 AM and sets at 7:28 PM local time (EDT) in Oak Ridge on September 26, 2026 — 11h 59m of daylight.
Course
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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2026 results — Atomic Kids Fall Triathlons
60 finishers across 3 distances · leading places in the Triathlon Long Sprint
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | J. Herring | 21:18 | 5:19 /mi |
| 2 | L. Broome | 21:50 | 5:27 /mi |
| 3 | C. Thoms | 22:11 | 5:33 /mi |
| 4 | P. Gray | 22:51 | 5:43 /mi |
| 5 | Brayden Carter | 24:02 | 6:01 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
All results by year
Other races near Oak Ridge
Different organizers, within 40 miles, in the next three months
Secret City Half Marathon and 5K
Hardin Valley Hawk Trot 5K
Clinton 5K & 1 Mile Fun Run
No Boundaries 5k Training for Hot to Trot
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, 9 Oak Ridge events
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