Result: Ashton Eaton breaks decathlon world record

American decathlete Ashton Eaton breaks his own world record to secure the gold medal at the World Athletics Championships.

Defending champion Ashton Eaton has retained his decathlon title at the World Athletics Championships, breaking his own world record to secure the gold in Beijing.

The American headed into the final event knowing that he was all but guaranteed the gold, having opened up a huge lead over Damian Warner with impressive displays in the discus, javelin and pole vault.

Ashton Eaton of the United States celebrates after finishing second in the Men's Decathlon 1500 metres heat 2 to win gold in the overall Men's Decathlon during day eight of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadi© Getty Images

He needed a fast time in the 1,500m to beat his previous highest point total of 9,039, which he did by six points after completing the event in 4:17.52.

Warner did enough to secure the silver medal with a national record 8695 points, while Germany's Rico Freimuth secured bronze with 8561, a new personal best.

Ashton Eaton celebrates winning his heat of the 400 metres in the men's decathlon athletics event at the 2015 IAAF World Championships at the 'Bird's Nest' National Stadium in Beijing on August 28, 2015
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