Registration day for all of our races is April 1, 2021 at 12:00PM (MST).
In a normal year, official online sign up for the Greater Yellowstone Adventure Series races would open at high noon
(12:00 PM) Mountain Standard Time on March 1. The reason? It was on March 1, 1872 that the US
Congress established Yellowstone National Park in what was then the Territories of Montana and
Wyoming. The region had only been explored once and had barely been surveyed. But, President Grant
had the foresight to create the world’s first national park. Good Call!
Covid-19 screwed up our tribute to history, but only in the timing. We’re opening on April 1 this year and spots are limited. The precise number of spots available is a work in progress. Please be patient.
Please note that there are no refunds for any reason. We will provide deferrals in the event that Covid-19 prevents us from hosting the races or prevents an athlete from traveling to Montana. If you change your mind, get injured, or whatever, you will not be eligible for a refund, but you can transfer your entry. Sorry for being a hard ass on this, but we have to draw the line somewhere.
Finally, please sign up for our free newsletter so you’ll always be in the loop. Contact us by email anytime if you
have questions at firstname.lastname@example.org See you in the Summer of 2021!
The links below will be live starting at 12:00 PM Mountain Standard Time (a.k.a. the world’s best time zone).
Race Day: July 8, 2021
The 10th Annual Madison Triathlon is the first leg of the Madison Trifecta.
Race Day: July 9, 2021
The 10th Annual Madison Duathlon is the second leg of the Madison Trifecta.
Race Day: July 10, 2021
The 14th Annual Madison Marathon is the final leg of the Madison Trifecta. The 14th Annual Madison Half Marathon is run on the same route at the same time with the same check in.
Race Day: July 11, 2021
The 7th Annual Big Sky Marathon is the second half of our double marathon weekend. The 5th Annual Big Sky Half Marathon is on the same route and starts at the same time with the same check in.
This will be the 7th year that we offer a Double Marathon. It is the only double marathon in Montana offered by a series. Marathon Maniacs can earn four stars by doing these two races over this weekend in July.
This will be the 7th year that we offer a Double Half Marathon. It is the only double half marathon in Montana offered by a series. Marathon Half Maniacs can earn four stars by doing these two races over this weekend in July.
July 8th, 9th, and 10th
This is the 10th year we are offering the Madison Trifecta. If you complete all three of these races in just a
four-week time span, you will earn a T.B.A. award. This stands for ‘Total Bad Ass’ because that’s exactly
what you are if can pull this one off.
This year we celebrate the 26th Annual Madison River Run (a.k.a. – Water to Whiskey 5K). The race starts on the water, runs to the church in Jeffers, and then there’s a mad run back to Ennis where the whiskey is waiting for everyone at Willies Distillery’s tasting room. How’s that for a Montana Saturday in July! This is a family-friendly event that welcomes runners, walkers, hoppers, and strollers. Come one, come all!