Welcome to Athletes in Tandem’s Phoenix Chapter

Athletes in Tandem, often called AiT, is a non-profit focused on increasing the quality of life for athletes with a disability through running, swimming and biking. As a chapter we partner with local organizations and families with disabled individuals to provide the thrill of competitive sport to every athlete. Our vision is to be a recognized leader in the promotion of awareness of the benefits a disabled individual receives from an active lifestyle! 

Athletes in Tandem’s Quick Links


About the Board


Mallory Reis, Chapter Chair

As a native of Colorado, Mallory got involved with the inaugural chapter of AiT in Ft. Collins. After completing her first half marathon with Tony and AiT, she was inspired to expand the organization to Arizona. Mallory works with Edward Jones as a Financial Advisor and is a drag racer in her spare time. 

Maggie Zaun, Vice Chair

Maggie is a native of AZ growing up in Tucson. She loves her family, her pup Cally and giving back to her community. She ran her first race with AiT in 2017 and has been passionate about the mission ever since. Maggie works with Edward Jones as a Branch Office Administrator and enjoys Harley rides with her husband. 

Bethany Sheffer, Treasurer

Bethany became involved with AiT in 2016 when she participated in our annual fundraiser, our Poker Ride. She immediately dove into action with the group and has been an integral asset to AiT Phoenix. Bethany owns Hugs in the Mail powered by Send Out Cards.

Stephanie Walter, Secretary

Growing up in an Army family, Stephanie lived in many states but has now settled in AZ with her pups and her boyfriend Graham. She has been a vital part in establishing and growing AiT Phoenix through knowledge and passion for non-profits. She works at Charles Schwab as a relationship specialist and enjoys running and athletic events. 

Crystal Miller, Board Member

Crystal is a triathlete, an avid football fan and a mom to her cat Monster. She first ran with AiT in 2015 and has completed several races since. Crystal works with Orthoscan as a Service Coordinator and most notably she has a contagious laugh!!