Ukraine’s Anna Stetsenko was pushed to her world best in the women’s 100 metres freestyle S13, clocking a time of 58.05sec.

Third on the turn, the world champion had to explode into the last quarter of the race to bring down her own previous time of 58.72.

Russia’s Darya Stukalova and Great Britain’s Hannah Russell were second and third in 58.93 and 59.32 respectively.

Sweden’s Maja Reichard, the 2014 silver medallist, lowered the women’s 50m freestyle S11 world record to 30.87 on her way to gold.

"I had no idea that I could go so fast," she said.

"I was just like 'I want a medal and I’m going to swim as fast as I can'.

"And then I heard everybody screaming and I thought 'okay someone did something really, really, good' and I didn’t recognise it was me.

"I am so happy."

The Netherlands’ Liesette Bruinsma took silver in 31.22, while Italy’s Cecilia Camellini - the former European champion and world record holder from the London 2012 Paralympic Games - was third in 32.00.

There were four world records in one race in the women’s 100m backstroke S2.

Beijing 2008 Paralympic champion Pin Xiu Yip of Singapore smashed the S2 world record, taking just under seven seconds off the previous best of 2:16.31 for gold in 2:09.79.

Ukraine’s Iryna Sotska took the European gold in 2:16.63 and Open silver, but Norway’s Ingrid Thunem lowered her S1 world record in the combined class race for Open bronze and European silver in 2:25.71.

Russia’s Alexandra Agafonova completed the European top three in 2:34.63.

Dmitrii Kokarev, also of Russia, performed superbly in the men’s 100m backstroke S2, winning his second gold and retaining his title in a world record time of 2:02.25.

The new mark was more than two seconds inside the former best of China’s Yang Yang set in 2015.

Ukraine’s world champion Serhii Palamarchuk also swam within the European record time for silver in 2:06.47, while Greece’s Aristeidis Makrodimitris was third in 2:11.23.

As well as breaking their respective records, all three swimmers also improved on the 50m world marks.

Kokarev’s 58.06, Yip’s 1:01.39 and Thunem’s 1:07.73 are now the times to beat.

Yip went on to set a new Asian record in the 100m freestyle, also bettering the 50m S2 mark.

Another gold and world record came for Ukraine in the men’s 100m backstroke S1 as world champion Hennadii Boiko clocked 2:23.75 to shave more than four seconds off his own best from the last European Championships in 2014.

Italy’s Francesco Bettella and Ukraine’s Anton Kol completed the podium in 2:26.63 and 2:31.05 respectively.

Norway’s European champion Sarah Louise Rung took her fourth gold of the Championships with a time of 1:44.49 in the women’s 100m breaststroke SB4.

Italy’s Giulia Ghiretti took silver in 1:53.63 ahead of Singapore’s Theresa Goh with Open bronze, and a new Asian record of 1:59.90.

Russia’s Irina Deviatova occupied the last spot on the European podium in 2:01.96.

Belarus' world and European champion Ihar Boki secured his third gold medal of the week with a time of 50.87 in the men’s 100m freestyle S13.

Ukraine’s Iaroslav Denysenko was second in 52.60 and his team-mate Maksym Veraksa third in 53.02.

Italy’s Federico Morlacchi took his second gold of the week in the men’s 200m individual medley SM9.

Leading throughout the race the world and European champion touched home in 2:18.39.

Hungary’s Tamas Toth came back from fourth to take silver in 2:21.43, while his team-mate Tamas Sors claimed bronze in 2:22.42.

Spain’s Sarai Gascon made it three golds from three races in the women’s 200m individual medley SM9 with a time of 2:36.31. 

The 23-year-old had to fight for the win, reclaiming her lead on the turn into the last 50m from Poland’s Paulina Wozniak, who had to settle for the runners-up spot in 2:38.12.

Spain’s Nuria Marques Soto took a birthday bronze in 2:38.26.

Michelle Alonso Morales notched another gold for Spain, retaining her women’s 100m breaststroke SB14 title in 1:13.46.

Britain’s Bethany Firth finished with silver in 1:14.31 and Russia’s Valeriia Shabalina bronze in 1:18.48.

Soto was also part of Spain’s successful women’s 4x100m freestyle relay team, putting in a stunning last leg to touch the wall in 4:34.68 alongside Teresa Perales, Gascon and Isabel Yinghua Hernandez Santos.

Russia took away silver in 4:40.64 and Hungary bronze in 5:00.47.

Denis Dubrov was one of four Ukrainian gold medallists today, taking top honours in a close men’s 100m butterfly S10 race with a time of 56.84.

Russia's European champion Dmitry Grigoryev was second in 57.73, while Brazil’s Paralympic champion Andre Brasil got Open bronze in 58.33 and Spain’s David Levecq took European bronze in 58.81.

Paralympic, world and European champion Yevheniy Bohodayko of Ukraine just had the edge on Colombia’s Open silver medallist Nelson Crispin and Germany’s Torben Schmidtke in the men’s 100m breaststroke SB6.

There was nothing to separate the trio for the majority of the final 50m, but Bohodayko had the stamina to touch for gold in 1:22.85 with Crispin clocking 1:23.00 and Schmidtke registering 1:23.77.

Norway’s Andreas Skaar Bjornstad completed the European podium in 1:26.45.

Ukraine’s Viktoria Savtsova and Yelyzaveta Mereshko blocked out gold and silver in the women’s 100m breaststroke SB5 with times of 1:38.41 and 1:40.16 respectively, while Hungary’s Fanni Illes was third in 1:48.66.

Oksana Khrul turned her fastest qualifying time of 1:37.62 to gold in the women’s 100m breaststroke SB7.

Russia’s Mariia Pavlova and Czech Republic’s Vendula Duskova were second and third in 1:44.47 and 1:46.88 respectively.

At the end of day four, Ukraine lead the medal table with 22 golds, 18 silvers and 14 bronzes.

Russia are second with 17 golds, 19 silvers and 14 bronzes, while Britain are third with 11 golds, nine silvers and four bronzes.