Twenty-four hours after winning the under-23 C1 title, Brazil’s Ana Satila picked up her second gold, winning the under-23 extreme slalom final in wet and windy conditions at Kolna Regatta Course.

Czech Amalie Hilgertova, who secured the under-23 K1 title on Friday, finished second.

Satila is also the reigning world champion, having won on her home course in Rio last year.

“It’s amazing, I’m so happy,” she said.

"Today was such a long day and I was really tired from yesterday."

The competition had to be delayed due to a thunderstorm, but when racing resumed it was Russia’s Sergey Maimistov who provided the lightning on the water, winning the men’s under-23 title.

He finished ahead of Austria’s Matthias Weger and Slovenia’s Tine Kancler.

"It’s really nice to be a world champion, I feel quite emotional,” Maimistov said.

"I don’t train too much for this event, but I train enough.”

Fifteen-year-old American Evy Leibfarth reached another milestone in her short paddling career, taking gold in the junior extreme slalom as she beat Austria’s Antonia Oschmautz and Czech Katerina Bekova.

"Extreme slalom is so much fun,” she said.

“Slalom I love, but this is a way to be stress-free and go out and have fun."

Britain’s Etienne Chappell won extreme slalom gold at the opening senior ICF World Cup in Lee Valley earlier this year, and followed up with junior gold today.

He beat home Russia’s Egor Smirnov, with Germany’s Jakob Hein third.

The Czech Republic won the champion team cup as the most successful nation over the World Championships, finishing with six gold medals.