LONDON -- Grenada's Kirani James won the Olympic men's 400-meter final, becoming the first non-American runner to break the 44-second barrier.

The gold medal was the first in Olympic history for Greneda.

James, the 19-year-old reigning world champion, crossed in 43.94 seconds during a drizzle, moving to ninth on the all-time world list. All eight men ahead of him are U.S. runners, but Americans were nowhere to be found in the London final.

The U.S. had won the past seven Olympic titles in the men's 400, dating to 1984, but none of the three American entrants qualified for Monday's final. That included 2008 champion LaShawn Merritt, who pulled up with an injury in his opening heat.

Luguelin Santos of the Dominican Republic won silver in 44.46 and Trinidad and Tobago's Lalonde Gordon took bronze in a lifetime best of 44.52.