Five is Chad le Clos' lucky number, and five was at play again on Wednesday on day two of the Fina Swimming World Cup at the Singapore Sports School.
With Poland's Konrad Czerniak bearing down on the finish line and seemingly close to pulling off an unthinkable upset in the 100m butterfly final, le Clos took one last gulp of air and powered through the final stretch.
He touched home in 50.04 seconds, clinching the gold medal by a mere 0.05sec.
Buoyed by his victory at the death, the South African sensation went on to win the men's 200m individual medley in 1min 53.36sec, beating second-placed Thomas Fraser-Holmes of Australia by a comfortable 1.24sec.
Added to his earlier victory in the 200m freestyle, as well as day one's haul of two gold medals in the 200m fly and 50m fly, it was a perfect five out of five for le Clos.
He had also bagged five medals at the 2010 Youth Olympic Games in Singapore.
And the Olympic champion could not hide his love for his lucky number.
"It's everything that's happened to me," said le Clos.
"I won the Olympics by 0.05sec, swimming in lane 5, so you can say it has a special meaning for me."
The 100m fly was not the only race that saw such a close finish. Le Clos also cut it close in the 200m free, beating Fraser-Holmes by a narrow 0.18sec.