Veteran triathlete Ellen Hart wins five world championships in 50 days, a feat some believe is among the most amazing in the history of the sport

Ellen Hart first won the half-Ironman world title. Then she bagged the sprint- and Olympic-distance triathlon championships for 2015. Soon after, she won her age group championship at the Ironman World Championship, then flew to Australia and conquered the duathlon world championship. No one ever has put together a string like that in the sport. My story on Hart for ESPN.com's Endurance Sports section: http://espn.go.com/sports/endurance/story/_/id/14575242/endurance-sports-ellen-hart-continuing-elite-athletic-career-fight-eating-disorders