Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Sadler''s Ultra Challenge is a wheelchair and handcycle race that runs between Fairbanks and Anchorage, Alaska. It is the world''s longest wheelchair race. Divisions include Men''s Handcycle (with A, B, and C classes), Men''s Wheelchair, and Women''s Handcycle. The 267 mile (430 km)-long race is run in eight stages and takes six days to complete. The annual competition began in 1984 and occurs in July of each year.