The Internationally famous Alaskan race that started all other winter adventure ultras! Our roots began with Joe Redington Sr., Father of the Iditarod sled dog race, who promoted human-powered events on the Iditarod Trail in the early 1980’s. First came Iditaski, followed by the Iditashoe and then Iditabike. In 1991 all three race modes were combined and the famous Alaskan Iditaskier, Tim Kelley,  coined the name of the new event, Iditasport®. Despite many years of success, the original Iditasport® dissolved in 2002.

Under the  guidance of former Race Director Richard Larson, Billy and Erica Koitzsch resurrected Iditasport® in 2014 to fill a need for short and mid distance winter ultras. They also saw a need for training and education for fledgling adventurers the preservation of Alaskan winter racing and adventuring history. 2017 we incorporated as Iditasport Alaska, a 501 (c)(3) nonprofit, to help us further our overarching purpose, to advance safe winter travel in the state of Alaska.

Iditasport® Alaska

We are 100% Alaskan & 100% volunteer.  

Our board members are devoted to promoting adventure lifestyles and preserving this historic event.

In addition to our races, we promote health & wellness throughout our great state of Alaska by providing training and education.


Billy Koitzsch

Race director

Billy is a lifelong Alaskan adventurer and father of 5. He grew up in Fairbanks and Nome, but has called Anchorage his home since 1992. He is a land surveyor for the State of Alaska and a small business owner. A former Iditasport® participant, he is the only person to have completed the entire Iditarod and Iron Dog trails (over 2,000 miles) on a bicycle. Billy has over 20 years of experience guiding and outfitting adventure athletes.


Erica Koitzsch

Lead race coOrdinator

REALTOR® by day, ninja by night…and she bakes bread! Erica has been a small business owner for over two decades, and with her husband, they are raising four fantastic children. She moved to Anchorage in 1991 from Fairbanks. She loves to answer your emails & phone calls and looks forward to facilitating your winter adventure!


Will Hartman

co-race Director

Will is a life-long Alaskan, and has over a decade of experience managing nonprofits and tribal organizations. Growing up in Western Alaska, Will has had decades of experience adventuring in remote Alaska. His focus at Iditasport® is expanding education and training programs, as well as Board and organizational development.