The 18-year-old Summer McIntosh has made it three world records in less than a week by breaking her own 400-meter individual medley mark at the Canadian swimming trials.

McIntosh came within a whisker of breaking a third world record at the Canadian swimming trials on Tuesday after finishing 0.45 seconds outside Liu Zige's 200m butterfly mark set during the era of the now-banned "super-suits".

McIntosh is not only a Canadian superstar, she's now a global powerhouse. The eyes of the swimming world were entirely fixated on her each time the 18-year-old took to the water this week at the Canadian trials.