BBC Sport - World Championships 2015: David Rudisha wins 800m gold

'Majestic' Rudisha wins 800m gold

Watch Olympic champion David Rudisha hold off all challengers to win a tactical men's 800m final at the World Athletics Championships.

The Kenyan ran a slow first lap of 54.15 seconds, but fended off eventual silver-medallist Adam Kszczot of Poland and third-placed Amel Tuka of Bosnia-Herzegovina, to win in 1:45.84.