Moscow - Ashton Eaton of the United States has added the world decathlon title to his Olympic crown in a dominant display at the World Athletics Championships on Sunday.
Eaton, who won silver in Daegu two years ago, finished the gruelling two-day 10-discipline event with 8,809 points.
Germany's Michael Schrader took silver (8 670), with Damian Warner of Canada claiming bronze (8 512).
Eaton produced a solid second day of performances, overcoming a fright as he heavily clipped his second hurdle in the opening 110m hurdles before recovering to finish in a leading 13.72sec.
The American's best of 45.00m in the discus saw him bank another 767pts for 6 280, as Schrader moved into second.
Eaton then cleared 5.20m in the pole vault and threw a best of 64.83m in the javelin before clocking 4min 29.80sec in the final 1500m.
In the first day of action on Saturday, Eaton started well, clocking a leading 10.35sec in the 100m, a third-best 7.73m in the the long jump, and 14.39m in the shot put.
But the world record holder dropped to fourth after a best in the high jump of 1.93m. Teammate Gunnar Nixon's 2.14m saw him soar briefly into the lead, followed by Schrader.
Eaton duly retook the overnight lead with a 46.02sec in the 400m, leaving him on 4 502pts, just nine ahead of Nixon and Schrader, a further 66 points adrift.
Eaton's teammate, reigning double world champion Trey Hardee, in fifth after three events, failed to register a height in the high jump for a disappointing end to his campaign.