The Hungarian won the women's 800m freestyle, the 200m freestyle, the 200m individual medley and also had a second placed finish in the women's 200m backstroke.
That saw her pick up $5,500 on the night to take her earnings in the World Cup series to $27,500 – far above any other swimmer male or female.
Joint-second on the women's money list is Sweden's Therese Alshammar who delighted the home fans by winning the women's 100 butterfly and finishing second in the 50m freestyle.
Alshammar now has $11,500 on the season as does Zsuzsanna Jakabos who had two silvers and two bronzes on the day.
Amongst the other highlights was 15-year-old Ruta Meilutyte of Lithuania winning the women's 100 breastroke as she again showed her Olympic gold was no fluke.
In the men's events, Japan's Daiya Seto and Australia's Robert Hurley continued their lucrative season.
Seto won the 400m individual medley and had second place finishes in the 200m butterfly and 200m breakstroke events to win $3,500 on the night and take his season earnings to a circuit's best total of $14,500.
Hurly comes next on the list with $10,500 as he earned $3,000 on the night with wins in the 100m backstroke and the 400m freestyle.