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Left to complete the Tri-State Trek.

The Ride to End ALS

Since 2003, people have been riding hundreds miles every summer to support ALS research at ALS TDI.

Register for the 2021 Tri-State Trek!

The 2021 Tri-State Trek is happening this summer and we want you to join us! This annual event aims to bring the ALS community together to raise awareness and funds for ALS research at the ALS Therapy Development Institute (ALS TDI).

This year, we will be hosting the 2021 Tri-State Trek with three options to participate! Whichever option you choose, you are part of our #TrekFamily and are contributing to our larger mission to end ALS.

Register Now

Three Ways You Can Join Us in 2021
In-Person Tri-State Trek
In-Person Tri-State Trek
Enter the drawing to get selected to join us for a limited capacity, abbreviated 100-mile Trek in Massachusetts on June 26, 2021.
Virtual Tri-State Trek
Virtual Trek
Join us virtually on your bike or trainer to complete this year's 100-mile ride or the Tri-State Trek's signature 270-mile route.
Trek Your Way
Trek Your Own Way
Not a cyclist? Through the “Trek Your Way” participation option you can get involved in whatever way you want!

If you are interested in registering for a chance to ride in-person, please make sure to visit our FAQ page here for details on the 2021 guidelines and requirements.
Important notes about the in-person Tri-State Trek:
Due to COVID-19 restrictions, we will not be able to allow spectators or guests of any kind at this year's in-person event. All participants, cyclists and crew members are required to follow our strict requirements including daily temperature checks, standing 6 feet apart and our “Feet on the Ground” protocol: When not actively cycling or eating, all must wear protective face masks covering nose and mouth. To maximize appropriate social distancing, this event will be held entirely outdoors and all meals will be catered as “grab and go”. Sanitation stations and resources will be on-site to ensure a clean and sanitized gathering. Additional guidelines may be added and mandated by ALS TDI based on recommendations by the CDC.
2021 Total Raised to Date



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View Photos from the 2019 Tri-State Trek event!

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Thank You to Our Previous Sponsors

Mitsubishi Tanabe Pharma America