The countdown is on. Marathon season is underway and we are inside the final two weeks before the American Birkie. At this point, “the hay is in the barn” when it comes to training, but there is still time to dial in a nutrition plan to stay fueled and all the way from Cable to Hayward. For pro tips, FasterSkier reached out to last year’s Birkie winner, Alayna Sonnesyn (SMST2), for insight into the system...