Athletes from the sport's birth nation proved again that they are warming up nicely for karate's Olympic debut at Tokyo 2020 with a series of fine displays in Chile's capital.

Three of their victories came in kata with Hikaru Ono upsetting Italy's world number three Viviana Bottaro in the women's final.

Japanese gold was guaranteed in the men's kata final with Ryonosuke Kikuchi beating his compatriot Kakeru Nishiyama at the Movistar Arena.

In the men's team kata, Japan took top honours over Italy while Peru won the women's team event by beating Spain.

Ayaka Saito claimed kumite gold for Japan in the women's over-68 kilograms, seeing off Germany's Johanna Kneer in her final.

There was also success for the Tokyo 2020 hosts in the men's under-67kg as Hiroto Gomyo got the better of Brazil's Vinicius Figueira.

Other winners today included Turkey's Serap Ozcelik who clinched a sixth title in 10 international appearances this year.

The reigning grand winner won the women's under-50kg after defeating Venezuela's Yorgelis Salazar.

Turkey added another two gold medals with grand winner Eray Samdan taking the men's under-60kg crown by defeating Japan's Sago Naoto.

Another grand winner, Ugur Aktas, also topped a podium for Turkey as he beat Zabiollah Poorshab of Iran in the men's under-84kg final.

There was disappointment for Chile in the men's under-75kg as home favourite Joaquin Gonzalez Lavin missed out to Stanislav Horuna of Ukraine.

In the women's under-55kg there was a shock as Brazil's Valeria Kumizaki toppled world number one Anzhelika Terliuga of Ukraine.

Another surprise occurred in the women's under-68kg as world number one Elena Quirici of Switzerland lost to China's Li Gong.

In the women's under-61kg, Egypt's double world champion Giana Lofty proved too strong for Russia's Anna Rodina.

An all-French affair in the men's over-84kg was won by Dnylson Jacquet who defeated team-mate Salim Bendiab.