One Fly Event

Every September in Jackson Hole, WY. forty teams put their skills to the test fishing two days, each with a single fly, with team and individual scores determined by the quantity and length of fish caught.  The Jackson Hole One Fly Event uses monies raised to fund conservation, habitat preservation and rehabilitation projects, along with stewardship education for the benefit of trout populations primarily in the Snake River Basin and the headwaters in Yellowstone Park.

Past Events

2021 Event

The 2021 Jackson Hole One Fly will be held:

 September 9th- 12th, 2021


2021 teams will be the same teams chosen for 2020's cancelled event


2021 Schedule of Events

Apply to be a Team

Apply to be Sponsor Team

Team Prospect Letter


The Jackson Hole One Fly entrusts the anglers to adhere to the utmost in honesty and integrity. The Jackson Hole One Fly is a self-policing event. Each angler is responsible for participating in accordance with these rules and is expected to acknowledge and self-report any of his or her violation of them.

BE ADVISED:  Some rules have been changed and/or edited for clarification for the 2019 event.  Please read these NEW rules carefully.

Read the Rules


2020 Increase Letter




Team Selection Process

Ready to organize a team and join the One Fly Event? The Jackson Hole One Fly Board of Directors adopted a team selection policy in order to ensure an equitable selection process.


Team Selection Process


Sponsor Teams make important contributions to our Mission and pay higher entrance fees (almost twice the rate paid by a regular team). The Sponsor Team is often a corporation, but can be an individual sponsor or a team of like-minded generous individuals. There are a limited number of Sponsor Teams, currently 7  out of the 40 team total, allowed for the annual event.

Become a Sponsor