Australia has never won more than four gold medals in a single day of Olympic competition but that record could be smashed on day one in Paris

Australia is set to equal its most successful day in Olympic history, with swimmers expected to pull off a gold-medal attack at the Paris Olympics.

Chalmers and Ingeborg Løyning announced their engagement in June this year, putting an end to rumors of a ‘love triangle’.

Three years ago in Tokyo, the Australian team won four gold medals in one Olympic day for the first time, shining in the pool, on the open water and at the skate park.

Swimmer Emma McKeon sparked a gold rush when she won the 50m freestyle and then teamed up with Kaylee McKeown, Chelsea Hodges and Cate Campbell to win the 4x100m medley relay.

Logan Martin dominated the men’s BMX freestyle before sailor Matt Wearne set another Olympic green and gold milestone.

But that could be equalled or even surpassed on the first day of competition in France on Saturday, with Australian athletes having legitimate gold medal chances in four of the 14 events decided across eight sports.

Another swimmer, Ariarne Titmus, is expected to emerge as the star.

The 23-year-old opens her medal campaign in what has been dubbed the ‘race of the century’, with reigning Olympic 400m freestyle champion Titmus taking on American legend Katie Ledecky and Canadian star Summer McIntosh.

Logan Martin was part of history in Tokyo as Australia won four gold medals in one day

Last year the three faced each other at the world championships, where Titmus won in a world record time.

The quartet of Mollie O’Callaghan, Emma McKeon, Shayna Jack and Meg Harris will be the firm favourites to win gold in the 4x100m freestyle relay after breaking the world record last year.

The Australian men’s 4x100m freestyle relay, led by Kyle Chalmers, does not have the star status of the women’s but is still expected to score a podium finish. The United States, however, enters the event as the big favorites.

Australia also has two genuine medal hopes in the men’s 400m freestyle: 2023 world champion Sam Short and Queenslander Elijah Winnington, who won their Olympic qualifying event.

Ian Thorpe made a flying start to the 2000 Olympics by beating his rivals to win the 400m freestyle in a new world record. He then led the men’s 4x100m freestyle relay team, which also set a new world record.

A silver and bronze medal on the track crowned a remarkable opening day for Australia on home soil.

Maddison Keeney (l) and Anabelle Smith are popular in the synchro 3m springboard

Outside of the swimming in Paris, the women’s 3-meter synchronized diving event will be decided. Rio bronze medalists Anabelle Smith and Maddison Keeney are among the favorites after taking silver at this year’s world championships in Doha.

After finishing fourth in Tokyo, cyclist Grace Brown is expected to be in the medal hunt in the 32.4-kilometre time trial on Saturday.

The 32-year-old has won silver at the last two world championships, but faces stiff competition from Dutch and American rivals.

The Australian men’s rugby sevens team are also in contention for a medal after an unbeaten start in Paris.

With their programme set to kick off before the opening ceremony, the men have booked a semi-final against reigning Olympic champions Fiji.

Cult skateboarder Shane O’Neill underperformed in Rio but the veteran could surprise in the men’s street event on Saturday, while Australia will be hoping for a gold medal in the women’s event and in the park discipline later in the Games.