Mount Kelly took a large team to the event in Switzerland and returned home with the top club trophy.
Burdisso, who won a bronze medal at the European Championships in Glasgow last summer, was named top male junior swimmer after claiming two gold medals and four silvers.
His top performance came in the 200m butterfly where he not only won in the ninth fastest time in the world this season but also broke the legendary Laszlo Cseh’s meet record.
Burdisso won in a personal best time of 1:57.16, which was 0.21 seconds than Cseh had set at the meet in 2016. Hungarian Cseh is the former world champion over that distance and European record holder with more than 50 major medals to his name.
Mount Kelly team-mate Sam Dailley finished second to Burdisso in the junior 200m butterfly final with a time of 2:05.27.
Burdisso also set a junior meet record on his way to gold in the 100m butterfly in a time of 52.71 seconds.
The Italian 17-year-old also won silver medals in the 50m freestyle (22.86), 100m freestyle (50.07 seconds), 50m butterfly (23.95) and 200m IM (2:03.32).
Mount Kelly’s Niamh Robinson also won a gold medal in Switzerland. She claimed victory in the senior 200m breaststroke final and also took a silver medal in the 100m breaststroke and a bronze in the 200m IM.
Athena Clayson claimed a silver medal in the 100m backstroke, while Macy Lawrence secured two bronze medals in the women’s 50m and 100m freestyle events.
There were also bronze medals for Emily Haimes (100m butterfly) and Robbie Jones (400m IM).
Meanwhile, at the Flanders Cup in Antwerp, former Plymouth College and Marjon student Tom Fannon won a bronze medal in the men’s 50m freestyle for Great Britain.