Scott Quin was among a hos of British swimmers to dip below their Paralympic consideration time today ©Getty Images

It was a successful day for the host national at the season-opening Sheffield leg of the World Para Swimming World Series, with British athletes winning four of the day's eight finals.

Reece Dunn won the men's 100 metres backstroke, leading a British one-two-three ahead of Louis Lawlor and Jordan Catchpole, while Hannah Russell won the women's final.

Louise Fiddes won the women's 100m breaststroke, with Maisie Summers-Newton second, Grace Harvey third and Rebecca Redfern fifth in a great showing for Britain where all four went faster than their classification's consideration time for the Tokyo 2020 Paralympics.

The same could be said for Dunn, Lawlor and Catchpole in the 100m backstroke.

Scott Quin was the other British victor today, triumphing in the men's 100m breaststroke and again dipping under the Paralympic consideration time.

Estonia's Matz Topkin won the men's 50m backstroke, ahead of Israeli duo Ari Omer Dadaon and Mark Malyar, with Jonne Moleman winning the women's equivalent for The Netherlands, edging out Dane Karina Lauridsen.

The Danish swimmer was also second in the 50m breaststroke, again behind Moleman, and Dadaon triumphed in the men's 50m breaststroke.

Twenty-one countries are represented at the World Para Swimming World Series event at the Ponds Forge International Swimming Centre, which continues tomorrow.