Swimming who is Summer McIntosh two world records at 16 in 5 days

In her Toronto, the very young Canadian has signed two world records in just five days: she’s not the precocious ever but she’s already a legend. Here because

She is not the youngest world record holder ever, because in terms of precocity in swimming there are those who have set records even at the age of 12, but Summer McIntosh at just 16 is certainly the first swimmer to hold the 400m freestyle limit at the same time (made on March 28 in 3’56″04 and paraded by the Australian Olympian Ariarne Titmus) and the 400 medley (made on April 1 and paraded in 4’25″87 by Katinka Hosszu who has held it since 2016 in 4’26” 36).