McIntosh was superior and won with almost a two-second margin at a time of 2.06,69.
My goal was to win and I succeeded with that. I am not super satisfied with the time. I am happy about the gold and will just try to keep my winning streak to the upcoming competitions, says the 18-year-old in the victory interview.
The Canadian was almost a second away from her own world record. Second became the American Alexandra Walsh and third Mary-Sophie Harbey, also from Canada.
Chinese crush
But the bronze could just as well have ended up in China.
Twelve-year-old super talent Yu Zidi sprinted and was only six hundredths away from the bronze.
The Chinese crushed her personal record by more than a second to 2.09,21.
Summer McIntosh is chasing five individual golds in Singapore and would in that case become the first woman to do so. Michael Phelps is the only swimmer who has done it before.
Overcame stomach sickness
On 100 meters butterfly, the American big favorite Gretchen Walsh won the gold and was with 54,73 only 13 hundredths over her own world record.
She crushed Sarah Sjöström's championship record by eight tenths.
Despite the stomach sickness that has plagued the American team and still gives negative effects.
The last few days my body has been fragile and I have needed to take care of it. Luckily I had the morning to recover. It helped me enormously, she says.
The USA team was hit by stomach sickness at the training camp in Thailand last week. Initially, food poisoning was suspected, writes the swimming site Swimswam, but on Sunday evening the American team confirmed that it was stomach sickness.
