TOKYO, Sept. 16 (Xinhua) -- Canada's Ethan Katzberg retained his hammer throw world title with an event record of 84.70 meters, while Kenya's Faith Kipyegon extended her dominance in middle-distance running by winning her fourth 1,500m world title at the World Athletics Championships here on Tuesday.

Katzberg, 23, delivered his best throw on the second round, beating the previous championships record of 83.63m set by Ivan Tikhon of Belarus back in 2007. He also achieved two over-83m marks en route to wrapping up his victory.

Germany's Merlin Hummel produced a personal best of 82.77m in the opening round to take the silver medal, while Hungary's Bence Halasz claimed bronze with 82.69m.

"I can't ask for much more. The whole field was gunning for it and these were incredible results with four guys over 80 meters. That really pushed me to get the result that I had today," said Katzberg, who also took gold at last year's Olympic Games in Paris.

"I am two meters away from the world record [86.74m] but I am getting closer. I will continue to push myself and push the limits of what I can do. It took a lot of hard training for this personal best. After 84.70m, I was really trying to go for it," he added.

Two-time Olympic champion and world record holder Kipyegon stormed home in 3 minutes, 52.15 seconds to claim her fifth world title and her fourth in women's 1,500m.

Her compatriot Dorcus Ewoi impressed with a personal best of 3:54.92 to secure the silver medal, giving Kenya a one-two finish. Australia's Jessica Hull took the bronze in 3:55.16, edging out Kenya's Nelly Chepchirchir, who also ran a personal best of 3:55.25 to finish fourth.

"Being able to defend my title and to win a fourth gold feels really special. I just wanted to be myself. After setting the world record in Eugene, I said to myself, 'I have to go to Tokyo and defend my title.' I knew I could run it under control. This sport drives me. I need to push myself in order to be the best," said Kipyegon, 31, who had lowered the world record to 3:48.68 in Eugene, the United States in July.

Hamish Kerr of New Zealand added the world high jump title to his Olympic gold and world indoor title, equalling his own Oceanian record with a world-leading of 2.36m. Two-time world indoor champion Woo Sang-hyeok of South Korea cleared 2.34m for his second world championships silver after 2022. Jan Stefela of the Czech Republic earned bronze after clearing 2.31m, edging Ukraine's Oleh Doroshchuk on countback.

Cordell Tinch of the United States notched the men's 110m hurdles victory with a time of 12.99 seconds. Jamaica's Orlando Bennett took silver in a personal best of 13.08s, while his compatriot Tyler Mason settled for bronze in 13.12s. Enditem