Olympic champion Ashton Eaton held a narrow lead over Michael Schrader after three events of the decathlon on Saturday at the world championships.
Eaton is the world-record holder in the demanding decathlon competition that goes over two days. The American earned 2,755 points going into the final two events of the first day, with Schrader trailing with 2,707.
Schrader is one of two Germans expected to be among Eaton's closest rivals, along with European champion Pascal Behrenbruch.
Eaton got off to a good start by running a season's best 10.35 seconds in the opening 100 meters in warm and humid weather and a nearly empty Luzhniki Stadium. He retained the lead after leaping 7.73 meters in the long jump.
The shot put has never been Eaton's strong event and he lost some ground by managing only 14.39 meters, the 12th best distance, a meter shorter than his personal best earlier this season.
Behrenbruch topped the shot put with 15.86 meters that left him in ninth place overall. He i...