World record holder Genzebe Dibaba underlined her superiority this season after securing the 1500m title in Beijing at the World Championships.

Dibaba has been the front runner of track with a world record in the 1500m secured in Monaco earlier this year. Now she adds a world title on top of the world records she has already claimed – the indoor 1500, 3000 and 5000m events.

The peerless Ethiopian runner looked classy and unfazed by the pressure in the Bird's Nest Stadium in the Chinese capital as he turned up the speed on the second lap to pull clear.

Tracked closest by Faith Kipyegon and Dawit Seyaum, Dibaba turned up the pressure with about half of the race to go and she had enough time to enjoy the moment at the finish line. Dibaba finished with a time of 4min 08.09sec, while Kipyegon took silver with 4:09.96.

Genzebe has carried on the sporting success from her sister Tirunesh who was an Olympic champion.

Now, Dibaba's focus is on making it a 1500-5000 double triumph.

Meanwhile, Kenyan runner David Rudisha snapped up gold in the men's 800m, showing the kind of form that helped him win the Olympic title in 2012.

It's his first global title in three years.

Rudisha led from start-to-finish and timed in at 1min 45.84sec for the victory with Poland's Adam Kszczot claiming silver in 1:46.08.

But the 26-year-old has dealt with a plague of fitness problems since he smashed the world record for 800m at the London Olympic Games.

He looked a step closer to his old form at the Commonwealth Games in Glasgow last year, but his success in Beijing is his first World Championship gold in the 800m since 2011.

Despite a low-key season, Rudisha was handed a huge opportunity at world gold when pre-race favourite Nijel Amos was ousted in the semi-finals. Amos had beaten Rudisha six times in seven races prior to his surprise elimination on Sunday.

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