The toughest, yet also the most inclusive, Backyard Ultra in the world. How far can you go? How many times will your mind be able to push you back into the starting corral? Whether you're running the Full Loop (5.5 - 6.0km) or the Kristi Loop (5.0 - 5.5km), this format gives you the opportunity to see what you're really made of. Early Bird price will increase without notice.