Australia Para swimmer Dedekind delivered a sensational performance to win the final by more than one second, clocking 26.56sec to beat nearest challenger Hannah Russell of England by 1.11.

Kirralee Hayes doubled the Australian presence on the podium in 28.24.

Dedekind's accomplishment was the crowning piece on a sensational night, and one of six Games records broken.

The evening session began with back-to-back Games records in the men's 50m butterfly and women's 50m breaststroke.

World champion Ben Proud claimed gold for hosts England in 22.81 in the first race, beating Singapore's Teong Tzen Wei by 0.40.

New Zealand's Cameron Gray clocked 23.27 to win bronze by just 0.01 ahead of Trinidad and Tobago's Dylan Carter.

Success for Lara van Niekerk of South Africa followed her 50m breaststroke bronze medal at the International Swimming Federation World Championships in Budapest last month.

She notched 29.73 to set a Games record, with England's Louise Imogen Clark in second posting 30.02 and Australia's Chelsea Hodges in third in 30.05.

Back-to-back Games records were also set in the sixth and seventh finals of the evening.

New Zealand's Lewis Clareburt took men's 400m individual medley gold.

Clareburt notched a superb 4:08.70, beating second-placed Brendon Smith of Australia by more than one second.

Smith's time of 4:10.15 would also have beaten the previous best of 3:11.08 set by Daniel Wallace of Scotland at Glasgow 2014.

There was a Scottish presence on this podium, after Duncan Scott took bronze in 4:11.27.

Olympic champion Margaret Mac Neil of Canada then broke the women's 100m butterfly Games record in a dramatic battle with Australia's Emma McKeon.

Defending champion McKeon led at the halfway stage, but Mac Neil finished strongly in 56.36, beating her rival by 0.02.

The final race of the day featured a Games record too, with Flynn Southam, Zac Incerti, William Xu Yang and Kyle Chalmers ensuring Australia triumphed in a closely-fought men's 4x100m freestyle relay in 3:11.12.

Lewis Edward Burras, Jacob Whittle, James Guy and Tom Dean of England had to settle for silver in 3:11.72, with Canada's Joshua Liendo Edwards, Ruslan Gaziev, Finlay Knox and Javier Acevedo finishing 1.89 off the pace in third.

Australia eased to victory in the women's 4x100m freestyle relay, adding to their world and Olympic titles.

Madison Wilson, Shayna Jack, Mollie O'Callaghan and McKeon triumphed by almost six seconds with their time of 3:30.64.

England's Anna Hopkin, Abbie Wood, Isabella Hindley and Freya Anderson took second in 3:36.62, with Canada's Summer McIntosh, Katerine Savard, Rebecca Smith and Mac Neil rounding off the podium in 3:37.25.

This was the fourth consecutive Commonwealth Games in which Australia completed the men's and women's 4x100m freestyle relay double.

The headline event prior to competition was the men's 200m freestyle - a battle between British Olympic gold and silver medallists Dean and Duncan, who both had their times bettered in qualification by Australia's Elijah Winnington.

Dean led for the first half of the race, but it was Scott who finished the stronger and took victory in 1:45.02.

The Olympic champion Dean had to settle for Commonwealth silver in 1:45.41, with Winnington completing the top three in 1:45.82.

Nicolas Guy Turbide of Canada won men's 50m freestyle S13 in the day's other Para swimming final, edging out Scotland's Stephen Clegg by just 0.01 with his time of 24.32.

Australia's Jacob Templeton took third in 24.47.

South Africa's Pieter Coetze was the day's other winner, the 18-year-old claiming victory in the men's 100m backstroke in 53.78.

Second-placed Brodie Paul Williams of England clocked 53.91, with Australia's Bradley Woodward taking bronze in 54.06.

A further eight swimming and Para swimming medal events are due to be held tomorrow at Birmingham 2022.