"I just focus on one thing. I did not let anything to disturb or distract me," Gayle said.

Sifan Hassan, 5,000m bronze medalist at London worlds, overtook Ethiopia's Letesenbet Gidey in the final lap to win the women's 10,000m title in a world leading time of 30:17.62. Gidey came second in 30:21.23 while Kenya's Agnes Jebet Tirop was third with 7.58 seconds off the pace.

Suzuki Yusuke led from gun to finish to deliver Japan's first gold medal in men's 50km race walk in 4:04:20. Portugal's 43-year-old veteran Joao Vieira lagged 39 seconds behind to take the silver while the bronze medal went to Canadian Evan Dunfee in 4:05:02.

Spanish veteran Jesus Angel Garcia, the eldest athlete at the Doha worlds who will turn 50 next month, finished eighth in 4:11:28.

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