Tokyo 2020 day four: All the Olympic gold medal winners - in pictures

There will be a total of 22 gold medals up for grabs on day four of the 2020 Tokyo Olympic Games and among the early golds handed out was a first-ever for Bermuda.

Flora Duffy stormed to the women's triathlon title one minute, 14 seconds ahead of runner-up Georgia Taylor-Brown of Great Britain to make history for the island territory.

The action is heating up in the pool, where four gold medals were won on Tuesday. Great Britain's Tom Dean edged teammate Duncan Scott by just 0.04sec to win the 200m freestyle, while Australia's Kaylee McKeown took gold in the women's 50m backstroke ahead of Kylie Masse of Canada.

There were also golds for Evgeny Rylov, representing the Russian Olympic Committee, in the 100m backstroke and for the USA's Lydia Jacoby in the 100m breaststroke.

Day four will see the first-ever Olympic title awarded in surfing when Japan's Kanoa Igarashi takes on Italo Ferreira of Brazil in the men's final.

And later this afternoon, all eyes will be on the Ariake Gymnastics Centre where Simone Biles aims to secure the first of six potential golds in Tokyo when the United States compete in the women's team final.

We will keep you updated with all the gold medal winners as it happens in the photo gallery above.