Rexburg Rush Multi-Sport Event

Registrations Are Open! Register by Wednesday, September 16

The Race Starts In

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Race Week Forecast Rexburg Rush Multi-Sport Event 8 days out

Thu Sep 17 Drizzle 87° 51° 7% precip 18 mph

Fri Sep 18 Light drizzle 69° 52° 11% precip 14 mph

Sat Sep 19 Clear 78° 47° 17% precip 7 mph Race Day

Forecast data by Open-Meteo

September 19, 2026

at Wakeside Lake

Sprint Triathlon, Olympic Triathlon, Duathlon, 5K, 10K

The REXBURG RUSH MULTI-SPORT EVENT takes place on Saturday, September 19th, 2026, at Wakeside Lake in Rexburg, Idaho, and serves as the final and celebratory race of the 2026 Tri Peaks Epic Events season.

Formerly known as the Rexburg Rush Triathlon, this event has expanded into a multi-sport finale, welcoming first-time racers, returning athletes, and Quadfecta finishers to close out the season in a fun, supportive, and high-energy environment.

A Perfect Way to Finish (or Start) Your Season

Whether this is:

Your first-ever race
Your only race of the season
Or the final piece of your Quadfecta journey

…the REXBURG RUSH is designed to be approachable, encouraging, and rewarding for all participants.

At all Tri Peaks Epic Events, you can expect a clearly marked course, friendly volunteers, and an encouraging race-day atmosphere that helps you feel confident from start to finish.

Choose the race that fits you best:

Sprint Triathlon – A great first triathlon or season-ending race
Olympic Triathlon – A strong final challenge of the year
Sprint Duathlon – Run–Bike–Run (no swim required)
Olympic Duathlon – A longer endurance option – Run-Bike-Run (no swim required)
5K Run – Perfect for beginners, walkers, and families
10K Run – Finish the season fast and strong

All disciplines take place at Wakeside Lake, located on the south end of Rexburg near BYU–Idaho, making for a smooth and spectator-friendly race venue.

The Grand Finale of the 2026 QUADFECTA

This race is the fourth and final event in the Tri Peaks Epic Events QUADFECTA series.

Special Quadfecta Gifts & Recognition
All athletes who complete the 2026 Quadfecta will receive a special gift and recognition at the awards ceremony following the race.

This is a moment to celebrate:

Consistency
Commitment
Community
And an entire season of accomplishments

Stick around after the races to cheer on fellow athletes and celebrate Quadfecta finishers together.

Beginner-Friendly & Community Focused

The REXBURG RUSH is known for:

A welcoming race atmosphere
Clear course layout
Supportive volunteers
A positive, end-of-season celebration vibe

If you’ve been thinking about trying a triathlon or multi-sport race, this is a fantastic place to start—and an even better place to finish.

ALL DETAILS, MAP, AND SCHEDULING ARE SUBJECT TO CHANGE

Event Schedule

Race Weekend Schedule

Friday, September 18 – Packet Pickup

4:00–7:00 PM: Packet pickup at Factory EV / Evocomm, 2557 S. Frontage Road, Rexburg (look for the Tri Peaks Epic Events tent)

Saturday, September 19 – Race Day

7:00–7:45 AM: Late packet pickup at Factory EV / Evocomm
7:00–7:45 AM: Transition area setup (closes promptly at 7:45 AM)
7:30 AM: Volunteer coordination meeting
8:00–8:15 AM: Mandatory race participant meeting
8:15 AM: Prayer & National Anthem

Olympic Events

8:30 AM: Olympic Duathlon Start
8:45 AM: Olympic Triathlon Start

Sprint Events

9:00 AM: Sprint Duathlon Start
9:30 AM: Sprint Triathlon Start

Run Events

9:45 AM: Olympic 10K Start
10:00 AM: Sprint 5K Start

Awards Ceremony: 11:30 AM–12:00 PM, with Trifecta / Quadfecta gifts and the raffle drawing.

Packet Pickup Options

Friday, 4:00–7:00 PM: Factory EV / Evocomm, 2557 S. Frontage Road, Rexburg, ID 83440
Saturday, 7:00–7:45 AM: Factory EV / Evocomm (late pickup)

Please look through your packet and review the rules and the maps. Timing chips are handed out the morning of the race, and body marking happens Saturday morning.

Parking

Park at Ultimate Steel Erection, 2621 S. Frontage Rd, just past the transition area. Pavement only, please. There is also parking in the campground area.

Optional Swim Practices

Wednesday, September 9, 7:00 PM
Wednesday, September 16, 7:00 PM

Meet at Factory EV / Evocomm, 2557 S. Frontage Road. Weather permitting. Watch the Tri Peaks Facebook and Instagram pages for changes.

Race Week Notes

$30 off registration: use promo code SUMMER$30 through September 17.
Last chance for raffle tickets: a Cervelo P105 bike from Dave’s Bike Shop (valued at $5,300), a Kuat bike rack, a $100 Teton Running gift certificate, and more. Stay after the race for the drawing.
Volunteers needed: volunteers get $50 off a future Tri Peaks race. Sign up with the volunteer link on this page.

Course Description

SPRINT SWIM – 0.51 Miles / OLYMPIC SWIM–.90 Miles
The SWIM portion of the REXBURG RUSH will take place at WAKESIDE LAKE in Rexburg. The SPRINT racers will complete ONE lap around the buoy’s in the lake. Start time for the SPRINT race will be 9:30 am. The OLYMPIC racers will complete TWO LAPS around the buoy’s in the lake. Racers will exit the swim just North of the starting point at the dock area. Start time for the OLYMPIC race will be 8:45 am.
SPRINT BIKE – 12.9 Miles / OLYMPIC BIKE—25.8 Miles
The BIKE section of the REXBURG RUSH will be a mostly flat course. SPRINT racers will do just 1 LAP where the OLYMPIC racers will do 2. The bike section will begin at the Southeast corner of the lake onto the Frontage / McCulloch Road. Racers will continue South veering right onto McCulloch Road/3200 South until they turn LEFT onto Burton Loop Road/S. 4000 West, continuing until they turn RIGHT onto 2800 S/Bob Frew Road, continuing West until they turn RIGHT onto 6100 West, heading North until racers turn RIGHT onto West 3200 South/Burma Road for a short distance then veering North. Racers will continue on W. 3200 Road/Burma Road and again veering North (NOT Burton Oil Road / W. 200 S) and then East onto W. 1000 South and continuing all the way back to turn RIGHT onto South 2000 West/Frontage / McCulloch Road, returning to WAKESIDE LAKE transition area—OLYMPIC racers will then do LAP 2 of the same course.
There will be volunteers and police at all major intersections—Use CAUTION on all corners and watch for gravel, cattle, and random farm sprinklers! Again, there will be a minor AID STATION that will have bottles of water only at West 3200 Road S and West 1000 South corner. You will be coached on where to dismount your bike and get ready for your run.
SPRINT RUN – 3.21 Miles / OLYMPIC RUN—6.15 Miles
The RUN portion for the SPRINT course of the REXBURG RUSH will have just 1 LAP where the OLYMPIC RACERS will do 2. Racers will exit the transition area heading South for a very short few feet and turning RIGHT onto W. 2600 South and then turning RIGHT onto S. 3000 West/Kennedy Road until they turn RIGHT onto W. 2000 S/Burton Oil Road until they hit McCulloch Road/Frontage Road/S. 2000 W. and returning to WAKESIDE LAKE—remember, SPRINT IS JUST 1 LAP—OLYMPIC IS 2 LAPS!
We will have volunteers at all major road crossings to guide runners on the course. There will be an AID STATION on the corner of 3000 W/Kennedy Road and W. 2000 S/Burton Oil Road with water/Gatorade. Run hard…there is a FINISHER MEDAL waiting for you after you pass the FINISH ARCH!

Race Distances

Triathlon

Olympic 1.5km swim · 40km bike · 10km run

Sprint 750m swim · 20km bike · 5km run

Duathlon

Olympic 10km run · 40km bike · 5km run

Sprint 5km run · 20km bike · 2.5km run

Run

Olympic 10km run

Sprint 5km run

* Distances may vary slightly per race depending on course.

Event Categories

⚠️ Category changes must be completed by 5 PM on the day prior to race day to ensure accurate timing & results.

Age Group Categories

Youth (Under 19)
Ages 20–29
Ages 30–39
Ages 40–49
Ages 50–59
Ages 60+

Awards

All participants who finish their race will receive a custom finisher medal at the finish line.
We are also planning to have a medal engraver at each event. Participants may have their finisher medals engraved for an additional fee.

TRIATHLON (Sprint & Olympic Distances)

Overall Top 3 (Male & Female) – Trophy Awards
Fastest Split Awards (Male & Female): Medal Awards
- Swim
- Bike
- Run
Age Group Winners – Certificate Awards (announced following overall awards)

DUATHLON (Sprint & Olympic Distances)

Awards given to the Top 3 Overall Finishers
Men & Women Combined Division

5K & 10K RUN EVENTS

Awards given to the Top 3 Overall Finishers in each distance
Men & Women Combined Division

Additional Awards & Recognition

Awards may include trophies, medals, and certificates based on category
Prize giveaways from our sponsors and TRI PEAKS swag will be included at the awards ceremony
Special recognition for the:
Michael Hayes Inspirational Award

Don’t miss the awards ceremony—it’s a highlight of the event!

Volunteering

Thank you so much for VOLUNTEERING!

Volunteers make the Rexburg Rush Multi-Sport Event possible, and it is a great way to be part of race day even if you are not competing. As a thank-you, volunteers get $50 off a future Tri Peaks race. Sign up using the volunteer link on this page.