They entered the competition as the two biggest stars, and boy did they live up to their reputation.
Chad le Clos and Katinka Hosszu virtually sealed the overall male and female Fina World Cup (short course) titles, respectively, on Wednesday when they emerged as King and Queen of the Singapore leg of the event.
South African swimming sensation le Clos romped home with a two-day haul of five golds in as many events at the Singapore Sports School pool.
Hungary's Hosszu won a total of five golds and two silvers, living up to her "Iron Lady" tag by swimming a total of 19 races in 10 events spanning 3,200 metres, including heats and finals.
The 24-year-old won gold in the 100m fly (56.58), 100m backstroke (57.04), 100 individual medley (58.29), 200m IM (2:05.33) and 400 IM (4:27.60).
She also won silvers in the 200m freestyle and 200m fly.
In her fourth race last night, Hosszu had just enough in the tank to see off Australian Alicia Coutts' challenge by just 0.03s.
Even though she finished last in her final race in the 50m fly, she was all smiles as she told The New Paper: "I'm really happy to swim some of my best times despite so many events.
"I love it here but I'm also looking forward to race some more in the last two stops in Tokyo and Beijing, even though the overall title is in the bag."