Emily Sisson just might be having the best year of her life. The professional runner for New Balance kicked off her year by running a 1:07 at the Houston Half Marathon—coming just five seconds short of the American record. In April, Emily made her marathon debut at the London Marathon, running a 2:23, finishing sixth, and becoming the seventh-fastest U.S. woman ever at the marathon distance. And this summer, Emily competed in the 10,000 meters at USATF Nationals, and landed a spot on the U.S. world team.