We’re raising funds for Jason Heinrich and our Next Day Access/American Access team as we prepare for the Mammoth 200, a 214+ mile ultramarathon through California’s Eastern Sierra. Jason’s reason for running is deeply personal. After his daughter spent a year in and out of St. Jude Children’s Research Hospital for treatment and follow-up care, he wanted to give something back to the place that had cared for his family. What began with the St. Jude Memphis Marathon grew into something much bigger: ultras, 50-milers, 100-milers, and, most recently, the Cocodona 250, a major endurance race that many runners know as one of the toughest and most respected challenges out there. Now he is taking on Mammoth 200 on October 2, 2026. With more than 30,000 feet of elevation gain, high-altitude mountain passes, rugged terrain, and up to 108 hours to finish, this challenge will demand resilience, faith, strategy, and a willingness to keep moving when every mile gets harder. 
 
 
 Jason will not be doing this alone. This effort brings together a committed team from Next Day Access and American Access, including pacers and crew who will help him through the hardest sections of the race, keep him fueled and organized, and support him over more than four days on the course. We are truly running for those that can’t. This fundraiser will help cover travel, lodging, race-related expenses, and the support needed to get our team to the start line and through the finish safely. Anything raised above those direct costs will be donated to St. Jude Children’s Research Hospital to support children and families who depend on its care. If Jason’s story speaks to you, please consider donating, sharing this page, or following along. Every donation and every share helps turn these miles into something bigger than a race. We are taking it the same way Jason approaches every hard road: one step at a time.

David Clark

Anonymous

Steve Heinrich

Brian Clark

David Heinz

Cammy Lerner

Roxana Rafsandjani

Mike Burkett

Brad McDaniel

Garrett Westhoff

Memphis Runner Running the Mammoth 200 for St Jude

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Memphis Runner Running the Mammoth 200 for St Jude

Still $3,375 to go. Help us build momentum.