Rory Bosio heads a strong American contigient that includes Meghan Arbogast and Amy Sproston - fourth and third respectively at this year 's Western States 100 - and last but not least The North Face athlete Helen Cospolich !
Rory Bosio was fourth last year .
Rory Bosio , who was fourth last year , heads a strong American contigient that includes Meghan Arbogast and Amy Sproston - fourth and third respectively at this year 's Western States 100 - and last but not least The North Face athlete Helen Cospolich !