It was a first-time triumph on the World Championships stage from 17-year-old Márton, who forced Chinese Taipei's Lo Chia-ling to settle for silver for the second consecutive year.

For Sinden, it was a second world title following on from Manchester in 2019 and a result which went one better than in Guadalajara  last year when he was denied gold in the final by South Korea's Kwon Do-yun.

This is Márton's first year starting in senior competition, and she put her name in the spotlight in the build-up to next year's Olympic Games in Paris with a sensational run from the women's under-57 kilograms round of 64.

Márton was in control against Ireland's Emma Cahill when she won by punitive declaration, then came from behind to beat Belgium's Raheleh Asemani over three rounds.

Victory in two against Greece's Faidra Kalteki and three against Lee Han-na of South Korea secured her place in the evening session and the one-mat set-up.

She won both rounds against Brazil's Maria Clara Pacheco 4-2 and 6-2 in the semi-finals, and delivered a controlled performance in a low-scoring final against Olympic bronze medallist Lo to win both rounds by the odd point 2-1 and 4-3.

Lo repeated her semi-final victory against world number two Hatice Kübra İlgün of Turkey in Guadalajara over three rounds, but had to settle for silver for the second year running,

World number one Sinden claimed the men's under-68kg title in impressive fashion.

His first match against Russia's Ilia Danilov, competing as a neutral, was the only one that required three rounds as the Olympic silver medallist defeated Arven Alcantara of the Philippines, Théo Lucien of France and Egypt's Eyad Barakat to reach the last four.

In the semi-finals, the 24-year-old Sinden edged out Iran's Matin Rezaei 15-13 in the first round, then proved too strong in the second with a decisive 21-5 win.

Sinden faced South Korea's world number six Jin Ho-jun in the final, which followed a similar pattern to his previous match.

He narrowly won the first round 3-2, then applied the pressure in the second for a 16-9 win and the title.

Tokyo 2020 gold medallist Ulugbek Rashitov of Uzbekistan had looked strong throughout and was three seconds away from reaching the final in two rounds against JIn, only for his opponent to level the match with a kick to the body and then take the third round to reach the decider.

The World Taekwondo Championships is set to continue tomorrow with the men's under-58kg and women's under-67kg and under-73kg weight categories.