Daegu, South Korea: Ashton Eaton took the lead in the decathlon Saturday after the opening day`s five events at the world championships, amassing a 53-point advantage over American teammate Trey Hardee.
Eaton, who won the U.S. championships in June, leads with 4,446 points. Defending world champion Hardee is next with 4,393 points and Oleksiy Kasyanov of Ukraine is third with 4,310.
Alkesey Drozdov of Russia, who led after four events, fell to sixth after finishing 25th in the 400 — the fifth and final event of the day.
Eaton took back the lead after running the fastest time in the 400, finishing in 46.99 seconds.