China also claimed victory in the women's competition but were outclassed by an impressive Iranian outfit in the men's event.

It came at the end of five weekends of competition here as part of the inaugural World Taekwondo Grand Slam Champions Series.

The team event is billed as the fastest and most spectator-friendly event on the taekwondo programme which is now being prioritised for Olympic inclusion at Paris 2024.

Men's and women's teams consisted of five athletes while mixed squads were made up of two men and two women.

Competition began in a traditional format in which fighters oppose others in a similar weight divisions.

In the third and fourth rounds, though, a "tag team" format consisting of five minutes with up to 12 switches was adopted.

There was nothing between the teams in the mixed final heading into the final rounds.

China's team of Zhang Mengyu, Chen Li, Huang Yueming and Sun Hongyi led with seconds to go only for the Russian quartet of Yulia Turutina, Arina Zhivotkova, Dmitriy Artiukhov to peg them back.

But, with less than 10 seconds left, Sun then landed a superb spinning headkick on Artiukhov to propel his team to a 21-18 victory.

China were even more dominant in the women's competition as they thrashed South Korea 53-17 in the final.

Zhang, the world under 67kg bronze medallist, was joined by reigning Olympic over 67kg champion Zheng Shuyin as well as world under 49kg third place finisher Yuntao Wenren in a formidable team also including Zhou Lijun and Gao Pan.

They proved far too strong for a South Korean team consisting of student and development players as they took the lead in round one and never looked back.

Iran were rewarded after entering the strongest team in the four-strong men's competition.

Mahdi Khodabakhshi, the under 80kg world champion in 2015, was joined by two reigning World Championship silver medallists in Armin Hadipour, at under 54kg, and Mirhashem Hosseini, at under 63kg.

They trailed early in their semi-final against Russia but fought back to win 39-20 before China overcame South Korea 76-63.

Iran, whose team were by far the most vocal as they whooped and cheered every scoring shot, then prevailed 76-56 in the final.

World Taekwondo President Chungwon Choue was among dignitaries present along with China's International Olympic Committee vice-president, Yu Zaiqing. 

Choue praised the mixed team format as well as other innovations such as the use of 4D cameras to help improve judging and add to the spectacle.

He also expressed home that more leading nations will compete with their strongest athletes in future team events now that they are prioritising the format.