VIEWFINDER: 2015 USATF Outdoor Championship Author:SI StaffPublish date:Jul 1, 2015VIEWFINDER: 2015 USATF Outdoor ChampionshipChristian Petersen/Getty ImagesKirby Lee/USA TODAY SportsKirby Lee/USA TODAY SportsKirby Lee/USA TODAY SportsAndy Lyons/Getty ImagesAndy Lyons/Getty ImagesAndy Lyons/Getty ImagesAndy Lyons/Getty ImagesAndy Lyons/Getty ImagesChristian Petersen/Getty ImagesLatest NewsBrittany Mahomes to Make SI Swimsuit Rookie DebutLori Harvey Set to Make SI Swimsuit Issue DebutCollege Football Playoff National Championship GalleryNew Year, New Promise: SI's Predictions for 2024Year in Review: SI’s Favorite Moments of 2023