Rigby Lake Rumble Kids’ Triathlon


July 5, 2024

Kids Triathlon and Race

The RIGBY LAKE RUMBLE KIDS TRIATHLON will be held on Friday, July 5th 2024, at Jefferson County Lake in Rigby. This race will be held at 6 pm the night before the Rigby Lake Rumble Triathlon. This race is for kids 9-17.


Course Description

Subject to Change


The SWIM portion of the RIGBY LAKE RUMBLE KID’S TRIATHLON will be a simple swim right along the buoy’s near the entrance/exit on the south/west portion of the lake. There will be Jefferson County Search & Rescue personnel and multiple kayaks/paddleboards on the reservoir for safety.


The BIKE section of the RIGBY LAKE RUMBLE KID’S TRIATHLON will exit the lake through the parking lot and continue down Rigby Lake Road, turn right on Stockham Boulevard to 3950 North (Annis Highway), and then another right turn onto 400 North, back to Rigby Lake Road and return to the transition area.


The RUN portion of the RIGBY LAKE RUMBLE KID’S TRIATHLON will be one complete lap around Rigby Lake. We will have volunteers at all major road crossings as well as the entrance back into Rigby Lake.  Please be nice to other people using the walking path.  Run hard…there is a FINISHER MEDAL waiting for you after you pass the FINISH ARCH!


Stick around after the race as we will have an award presentation! Trophy’s will be awarded to the overall finishers. Don’t miss this ceremony!

Volunteers like you make events like this possible

Jefferson County Lake
Rigby 83442

Course Maps Are Coming Soon

Course maps are subject to change dependent on approval with the city, county, or state.


We appreciate the sponsors for Tri-Peaks Events 2023

Rockwell Development

Sprint Sponsor

Performance Therapy

Swim Cap Sponsor

Leisure Time

Finish Towel Sponsor

Ball Ventures

Finish Line Medal Sponsor

Foothills Rehab

Elite Sponsor — Idaho Falls

Lookout Credit Union

Elite Sponsor — Rexburg

Fitzgerald’s Bicycles

Bike Category Sponsor

Shredded Nutrition

Transition/Stipper Sponsor

Bills Bike and Snow

Run Category Sponsor



Mike the Trainer Taylor

Hydration Station


Hydration Station


Hydration Station

Additional Sponsors

This is it!

The time for commitment is now.

We're excited to be raffling off a Road/Tri Bike from Fitzgerald's Bicycles.

Drawing will be held 8/12/23 @ The Great Snake Triathlon

2 for $10

6 for $25

15 for $40

Purchase your raffle tickets at any of the Tri Peaks Epic Events Races or at

Fitzgerald’s Bicycles
2026 E 17th St.
Idaho Falls, ID 83440

Pay with Venmo

Open Water Swim Clinic!


Preview of 2023 Triathlons in Eastern Idaho

June 15th @ 6:30 PM

June 16th @ 6:30 AM

Wakeside Lake
2245 S Frontage Rd
Rexburg, Idaho

Meet in the Vivint Parking Lot

Come Ready to Learn!

Pre-Race Open Water Swim Clinic

Last Chance!

Register now and get $50 off

the Rexburg Rush Triathlon — June 17th

Use Promo Code REXBURG50

Sale ends June 11th