9th Annual Madison Trifecta - a.k.a. Trifecta World Cup - Yellowstone

Ennis, MT 59729, USA


Thanks for your interest in the Greater Yellowstone Adventure Series (GYAS) races.  We have not cancelled the GYAS events for 2020.  However, we have temporarily closed our registration for all the races until the situation becomes more clear.  Montana is under Phase One of its opening which limits group sizes to no more than 10 people.  If the Governor decides to go to Phase Two, groups of up to 50 people will be allowed.  At that time, we will try to obtain race permits to allow some or all of our races to be held in a limited format as originally scheduled from July 16 to July 26.  There is no guarantee that we can obtain permits under Phase Two, but it’s our intent to try and do so.


Please sign up for our newsletter to keep in the loop on this situation.  Go to our race website – www.themadisonmarathon.com – and click on the newsletter ‘Stay in the Loop’ link to get on the mailing list.  Thank you.


Stay Happy, Healthy, and Always Keep Running Forward.


Sam Korsmoe

Race Director

Greater Yellowstone Adventure Series


The Madison Trifecta (a.k.a. Trifecta World Cup - Yellowstone) is the combination of the 9th Annual Madison Triathlon, the 9th Annual Madison Duathlon, and the 13th Annual Madison Marathon.  Three events in three days.  Back to back to back.

Athletes who complete the Madison Trifecta will earned the coveted TBA status. TBA stands for Total Bad Ass because anyone who can pull this off is exactly that.

For 2020, we are taking this incredible challenge, and cool idea, and going global.  We will/are re-branding the series as the Trifecta World Cup.  In this case, it is the Trifecta World Cup - Yellowstone.  Next up, Trifecta World Cup - Vietnam.  Followed by the Trifecta World Cup - China, and so on.  We gotta start somewhere, so we're starting where it all started.  Right in the Yellowstone.   

Ready to take on the challenge of a life time?  Ready to take it international?

Here it is.  It all starts on July 16.