Johnson on top of the world

Dustin Johnson seized the world No. 1 ranking in emphatic style Sunday, firing an eight-under par final-round 63 to win the US PGA Northern Trust by 11 strokes.

Johnson finished with a 30-under par total of 254 at TPC Boston, with Harris English a distant second on 265 after a closing 69.

Johnson’s 22-under third-round total had given him the largest 54-hole lead on tour this season – five strokes – and he was quick to build on it on Sunday.