Men's 400 metres final
The world indoor 400-metre crown stayed in British hands as the youngest runner in the final, Daniel Caines, ran a superb race to win in 46.40.
Caines' victory was perhaps not surprising, considering he had the fastest time of the season of those competing in Lisbon.
Off the second turn, Caines easily won the race for the inside curb over Danny McFarlane of Jamaica and the Maebashi silver medallist, Milton Campbell of the US.
On the final backstretch, the other British runner in the finals, Mark Hylton, moved up and created a tight pack as the last curve approached.
Coming off the bank, Campbell ran wide in an attempt to overtake Caines, but his effort fell short, as he took his second straight silver in 46.45.
McFarlane's bronze-medal performance was 46.74.
Said Caines, "I had two things to do today: Get to the bell first, and then work, work, work! We'll see how this summer goes."
Spain's David Canal, who was advanced to the final after the disqualification of Tunisia's Sofiene Labidi, was fourth in 46.99, ahead of Hylton (47.03).
The US champion, James Davis, ran about 30 metres after the gun, and then left the track, the victim of a hamstring pull in yesterday's relay heats.