Summer McIntosh, 18, matches Phelps with third world record in five days | Swimming

Summer McIntosh broke her third swimming world record in five days on Wednesday night, clocking 4:23.65 in the women’s 400m individual medley at the Canadian Swimming Trials in Victoria. in Victoria, British Columbia.

The 18-year-old from Toronto lowered her own world record of 4:24.38, set…