Time: 7:05am IST
Usain Bolt wrote another chapter of improbable Olympic history with a third consecutive 200m crown as Ashton Eaton led an American gold rush by clinching back-to-back decathlon titles.
Bolt, who just days earlier had become the first man in history to win three 100m titles in a row, surged to victory in the 200m in 19.78sec at the Olympic Stadium.
Canada’s Andre De Grasse took silver in 20.02sec, just ahead of France’s Christophe lemaitre, who took bronze in 20.12.
Bolt’s triumph was greeted with rapturous applause by Brazilian fans who roared their appreciation as the sprint superstar set off on a lap of honour, with Bob Marley booming from stadium speakers.
The win left the 29-year-old Bolt just one win away from his targeted “triple triple” — a repeat of his sweep of 100m, 200m and 4x100m golds at the 2008 and 2012 Games.
“There’s nothing else I can do,” said Bolt.
“I’ve proven to the world that I’m the greatest. That’s what I came here for. This is why I said it’s my last Olympics. I can’t prove anything else.”
The only blemish on another night of triumph for Bolt — his eighth Olympic gold medal — was a failure to seriously challenge his world record of 19.19sec.
Bolt will attempt to put the seal on what he says is his final Olympics in Friday’s 4x100 relay.
Bolt’s win came on a day when US athletes snapped up four more golds with wins in decathlon, men’s and women’s 400m hurdles and shot put.
Eaton, the defending decathlon champion and world record holder, overcame a fierce challenge from France’s Kevin Mayer to win the punishing 10-event discipline with a total of 8,893 points.
Mayer won silver with a total of 8,834pts, with Canada’s Damian Warner taking bronze.
Eaton’s back-to-back titles matched Britain’s Daley Thompson, who won gold in the event in the 1980 and 1984.
“To win two Olympic golds in a row like Daley Thompson is very special,” Eaton said.
“One day, I’m going to have to meet Daley, shake his hand and thank him for giving me something to chase after.”
Arguably the performance of the day by a US athlete came in the women’s 400m hurdles, where Dalilah Muhammad became the first American to win the event since it was introduced at 1984 Oly.