Alice Tai was among the winners on the opening day in Glasgow ©Getty Images

Britain’s Alice Tai and Reece Dunn were among the winners on the opening day of the World Para Swimming World Series in Glasgow.

The home swimmers triumphed in the multi-classification 100 metres freestyle events at Tollcross International Swimming Centre in the Scottish city.

All athletes' results at each World Series edition are calculated using a standardised World Para Swimming points system via an online virtual competition platform.

This ensures that the overall World Series winner will be the best performing athlete over the duration of the series, meaning every performance counts.

Tai, an S8 classification swimmer, completed the women’s event in 1min 4.06sec to receive 981 points.

Canada’s Aurelie Rivard clocked 59.68 seconds, with the S10 swimmer awarded 974 points to end second.

The podium was completed by Italy’s Carlotta Gilli, an S13 athlete, whose time of 59.09 saw her earn 913 points.

Dunn triumphed in the men’s competition having received 1,094 points, after the S14 swimmer clocked 51.92.

Japan’s Takayuki Suzuki placed second on 1,025, as the S4 swimmer touched the wall in 1:21.73.

A time of 1:05.00 saw Colombia’s Nelson Crispin, an S6 class athlete, take bronze with 981 points.

Suzuki later topped the standings in the men’s 150m individual medley, with his time of 2:47.26 giving him a score of 626 points.

The United States’ Leanne Smith secured the women’s title on 711 points after finishing in 3:15.08.

Britain’s Maisie Summers-Newton also broke her world record in the women’s 200m individual medley, the SB6 swimmer clocking 2:57.99.

That time saw the home swimmer win gold on 1,027 points.

Japan’s Dai Tokairin won the men’s event after achieving a time of 2:10.53.

A second World Para Swimming World Series event is taking place simultaneously in Brazilian city São Paulo.

It is the third successive year that the Brazilian Paralympic Training Centre has staged a World Series event.

Around 250 swimmers from 16 countries are expected to compete.