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General Information

Runners from all over the country will be in Rexburg, Idaho on the second Saturday in June to participate in the Teton Dam Marathon & Races. The races include a marathon, half-marathon, relay, 10K and 5K. The Teton Dam Marathon & Races takes place every year around the anniversary of the breaking of the Teton Dam.

On June 5, 1976, the collapse of the Teton River Dam unleashed a savage flood which caused $500 million in damage, took eleven lives, and made thousands homeless in Wilford, Sugar City, Rexburg, Salem, Hibbard, Firth, Blackfoot, and Roberts.

This tragedy was turned into triumph by the victims' own faith and courage and by an outpouring of aid by many volunteers from Idaho and nearby states. For this reason over a thousand runners flood the streets to take on their own personal challenge of running a race.




Marathon 26.2 Miles
Half 13.1 Miles
Relay 26.2 in 6 legs
Corporate Challenge Relay 26.2 in 6 legs
10 K 6.2 miles
5 K 3.1 miles

Schedule of Events

Oct 1,    2016         Registration Opens (see Registration page for schedule)
May 19,   2017               

Guaranteed Registration Ends: for guaranteed shirt, swag bag, or awards. Extras will be ordered to pick from, but no promise you will get your desired size. 

June 1, 2017

 6 p.m. Online Registration Closes                                                Paper registration available from 8am-3pm Friday@The Zone

June 2, 2017

 Packet Pickup 8am-3pm  @ The Zone (275 Stationary Place. Rexburg, ID)


June 2, 2017

Packet Pickup & Potato Bake Dinner  5pm -7pm                       @ Madison Middle School (575 W 7th S)

*Free Potato Bake Dinner for Marathon, Relay, and Half Marathon registrants. Additional tickets available for $6 in advance and $8.00 at the door. 

June 2, 2017  Information Meeting 6pm @ Madison Middle School
June 3, 2017 5:00 a.m. - Full Marathon runners and First Leg of Relay only: Load Buses @ Madison Junior High School (134 Madison Ave)
    5:30 a.m. - Full Marathon and First Leg of Relay runners  only: Buses leave for Historical Teton Dam Site
    6:30 a.m. - Start Marathon & Relay @ Historical Teton Dam  Site

  7:30 a.m. - Start Half-marathon @ The middle of the block  on 1st North Street

  8:00 a.m. - Start 10K @ the middle of the block on 1st North  Street
  8:30 a.m. - Start 5K @ the middle of the block on 1st North  Street
    9:00 a.m. - 1:00 p.m. - Expo in the Park @ Smith Park
    11:00 a.m. - Award Ceremony for all races @ Smith Park

For a registration schedule and event fee information, click here

  • Tech Adult Men or Women's race shirt for marathon, half marathon, and relay runners
  • Cotton  Adult Men or Women's race shirt for 10K and 5K runners
  • Finisher medal: every racer will receive a medal when they cross the finish line
  • Timing chip for accurate race time (Disposable)
  • Bib number
  • Swag/goodie bag
  • Organized course with water, sports drink, fruit, medical assistance, port-a-potties
  • Food and drink in runners' corral at finish line
  • Bus ride to starting line for marathon and 1st leg relay runners

Starting Line

The marathon and relay will start at the Historical Teton Dam Site, outside of Rexburg, ID. The half, 10k, and 5k race will all begin at the Smith Park at the middle of the block on 1st North Street.

Course Markings

Mile markers will be set at every mile on each course. Volunteers and arrows on the road will direct you at intersections. Police officers, paramedics, and volunteers will be stationed at key points of the race to assist the runners.

Course Closure

The course will shut down after 1:30 p.m. After this time, runners will need to run on sidewalks and obey all traffic laws in order to finish the race. Thank you for understanding.

Not Allowed

Personal support vehicles, unofficial bicycles, baby strollers, in-line skates, skateboards, and pets are not allowed on the courses. Baby Strollers will be allowed on the 10K, 5K. The use of music devices and headphones are not encouraged to be worn on the course.

Water Stations

Water and Sports Drink will be located at the following locations:

Marathon and Relay: Miles 3, 6, 8, 10, 12, 14, 17, 19, 20, 22, 24, & 25 .

Half-marathon: Miles 2, 3, 4, 6, 7, 9, 11, & 12.  

10K: Miles 2, 4, & 5.

Aid Stations

Medical Assistance will be located at the following locations:

Marathon and Relay: Miles 8, 12, 17, 19, 22, & 25

Half-Marathon: Miles 2, 6, 9, & 12

10K: Miles 2 & 5


Located at following locations:

Marathon and Relay: Miles 3, 6, 8  10, 12, 14, 17, 19, 20, 22, 24, & 25.

Half-Marathon: Miles 2, 3, 4, 6, 7, 9, 11, & 12.

10K: Miles 2, 4, & 5. 

Relay Teams

Relay teams can have between 2 and 6 members. The course will be divided up into four legs of four miles and two legs of five miles. Transition areas are located at miles 4, 8, 12, 17, and 22. The first leg runner can ride the bus from the Madison Junior High School to the starting line. It is the responsibility of the team to pick up and drop off their members at each transition point. Team vehicles must be marked as the official team transport-vehicle, only one vehicle per team. This vehicle can only drive through the course once, no circulating the course or portions of the course to check on runners. Any team whose vehicle is found circulating the course will be disqualified. Drive slowly through the course to reduce kicking up dirt and give all runners the right-of-way. The first and last runners of your team need to be wearing the timing chip; the middle runners don't need to wear the timing chip. Only the team's overall time is recorded.

Closed Course to Traffic

To ensure safety we ask that all thru traffic and spectators not drive the course. Spectators that want to cheer on their runners can do so by accessing intersections that the course passes through; access these locations by traveling on side roads.


Vehicles parked at the Teton Dam Site during the start of the Marathon and Relay will be contained until officials feel that runners have had enough time to clear the roads; a 30 minute wait should be expected. There will be no-parking at Smith Park/Finish Line. Parking is available at the Madison Junior High School, which is one block away.

Finish Line

All races will finish at Smith Park at the middle of the block on 1st North. A digital clock at the finish line will display unofficial finish time. Official times, using the timing chips will be posted at the information tent. Food, water and shade will be available in the runners' corral, located by the finsih line. Only participants are allowed in this area.

General Info




Corporate Challenge Relay

10 k

5 k

Kids Race

Race Results

Race Director - Irene Routson
Rexburg City Hall
35 North 1st East
Rexburg, ID 83440