As McIntosh topped the podium, fellow young swimmers at Lakeshore Swim Club in Etobicoke, Ont., a Toronto neighbourhood west of downtown, cheered on. Club president Tara Smith said they reminisced about McIntosh swimming for the club in her early years.

Summer McIntosh is off to a perfect start at the swimming world championships with two gold medals in two days.

Canada’s Summer McIntosh capped a dominant world swimming championships with her fourth gold medal on Sunday, winning the women’s 400-metre individual medley in championship-record time.