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6 & 12 Hour Track Ultramarathon

1 Hour Kids Race



Proceeds will benefit Bigfork School District Unfunded Sports Programs 

Postponed to 2021


 Due to the ongoing COVID-19 situation and guidance from the Governor of Montana and other authorities, the Flathead Monster Ultra has been postponed to 2021.

The Flathead Monster Ultra offers new and experienced runners the chance to pursue new goals and distances on the track.

Our 6 and 12 hour events will happen concurrently, with track lanes managed for minimal crowding.

Before the longer events start, we’ll invite our 14 & under crowd to enjoy a special One Hour Kids Race.

Brought to you by an ultrarunning family, the Flathead Monster Ultra was created out of a love for the sport, a desire to invite others to experience this challenging activity, and a need to fund our local unfunded sports programs. The race is intended to be focused first and foremost on raising funds and a positive experience for the participants. All proceeds from the event will go directly to support the unfunded sports: Cross Country, Wrestling, Swimming, Golf, and Soccer.



Welcome to Beautiful Bigfork, Montana!

The race will take place at the Bigfork School District Track – 600 Commerce Street, Bigfork, MT 59911

Home to Flathead Lake, the largest natural freshwater lake west of the Mississippi, and only a short drive from the Crown of the Continent, Glacier National Park, Bigfork is a small but engaging community full of artists, entrepreneurs, and outdoor enthusiasts.

Flathead Lake is home to the elusive Flathead Lake Monster…perhaps you’ll catch a glimpse of Flessie on one of your turns around the track?

The Races

6 Hour Ultramarathon

Explore the Ultramarathon in 6 hours. A perfect amount of time to achieve your first Marathon, 50K, or just test the waters of this thing called ultrarunning.

12 Hour Ultramarathon

Take your challenge to the next level with a twelve hour race. If you’re working on your first 50K or even 100K, it’s within your reach during these twelve hours on the track.

1 Hour Kids Race

For our younger ultramarathoners, this race is open to all kids 14 and below.

Course Information

The Flathead Monster Ultra is a fixed-time event on a high school track. Our track does boast some of the best views of mountain peaks and our glacial lake, so you’ll have something to enjoy while you repeat your rounds.

To reduce wear and tear, the course direction will reverse every 3 hours. 

Depending on the number of participants on the track at any one time, we may split the races into different lanes, with the distance adjusted accordingly with the timing system.


Event Information

Event Location and Start:

Bigfork School District 38 Track – 600 Commerce Street, Bigfork, MT 59911

Kid’s Race Start – 8:00 a.m. Saturday, June 27, 2020

6/12 Hr Race Start – 9:30 a.m Saturday, June 27, 2020 


 As this is an unsupported race, you may wish to bring food, snacks, or crew materials. These may be placed on the grass inside of the track, or on the exterior gravel on the west side of the track. It is at the RD’s discretion to ask you to relocate your items before the race begins. 


On-site bathrooms are available. Pending registration volume, we may also rent Port-a-potties.


 Parking is first-come, first served in the school parking lots and surrounding streets. Please be respectful – this is a small school in a small community. Please do not park in someone’s yard or blocking driveways or paths. 

Checking In

 Location and time for packet pickup are still being determined. Check back for updates on when and where you can pick up your race packet. 


Weather in Montana in June is ideal for this type of event – typically clear and crisp, without significant heat or cold or major temperature swings. The race will occur in all weather conditions with the exception of active lightning. However, in Montana, there is always a very real possibility it could snow. Please dress, pack, and plan accordingly.

Sunrise is 5:39 a.m. Sunset is 9:40 p.m.

Race Goodies

 What You Get

Custom Design Athletic Race T-shirt – we are still finalizing our logo

Finisher Medal with completed milestone distances

Chip timed Race Results

Satisfaction of supporting the Unfunded Sports Programs at Bigfork School DIstrict


Registration and Cost

Registration is conducted via Ultrasignup.


Kid’s Race: $30

6 Hour: $40 – $50 after April 30

12 Hour: $80 – $100 after April 30

Waiver of Liability

All participants of the Flathead Monster Ultra will be required to sign a physical waiver of liability form in order to pick up their packet. If you refuse to sign the waiver, you will be unable to participate and all registration fees will be forfeited. 

You can read the waiver here and complete a digital version in advance; a physical copy will still be required at time of packet pickup.

Aid Station

This is a self-supported race. We will be providing water and maybe some light snacks and electrolyte mix based on total registration and funding. However, please plan to bring all food/supplements/nutritional requirements to ensure you have what you need for your race.

Timing and Results

We are engaging a local company to provide chip timing. This is not a USATF certified course or event.

Medical Support

We are discussing potential on-site medical support with local volunteers and will update this section with more information when available. Otherwise, please remember this is an unsupported event and medical support should not be expected. 

Our race staff is well versed in ultrarunning injury, blister prevention, and taping. We will do our best to accommodate and assist. If you know or expect you will need tape, please bring your own supplies as ours are limited. 


Withdrawal and Refunds

Our goal is to raise funds in excess of $50,000 to fund our unfunded sports teams. Thus, no refunds will be issued under any circumstance.  If you are registered and wish to transfer your registration to another person, please contact us to discuss this further. Race shirts may only be picked up in person at packet pickup or on race day, we cannot mail out shirts to participants that do not attend the event.



Coming Soon

Your Race Team:

Race Director: Beau Wielkoszewski
Bigfork School District Cross Country Coach

Leadville 100 | Across The Years 6 Day | Across The Years 10 Day | Beast of Burden 100 | C&O Canal 100 | and others

Assistant Race Director: Holly Wielkoszewski

Across The Years 48 Hr | Stone Mill 50 | New River Trail 50K | and others