在美国Irvine举行的泛太平洋游泳锦标赛中，加拿大选手Summer McIntosh在女子400米自由泳预赛中遭遇意外失利[1]。作为该项目的世界纪录保持者，McIntosh仅以4:08.56的成绩排名第九，无缘决赛，落后获得第八名、最后一个晋级名额的选手0.2秒[1]。她在赛后表示，"我对今早预赛中的判断失误承担全部责任"[1]。这一成绩比McIntosh自己创造的世界纪录慢了14秒[1]。
澳大利亚选手Lani Pallister以4:05.22的成绩赢得预赛，获得决赛资格[1]。美国传奇选手Katie Ledecky则以4:03.48的成绩排名第一[1]，两人有望在决赛中展开争夺。根据赛制，McIntosh将参加"B"组决赛，但无法争夺奖牌[1]。
Summer McIntosh, the world record holder in the women's 400-meter freestyle, failed to advance to the final at the Pan Pacific Swimming Championships held in Irvine.[1] The Canadian swimmer finished ninth in the preliminary heat with a time of 4:08.56, falling 0.2 seconds short of the eighth-place finisher needed to qualify.[1] McIntosh's performance came in at 14 seconds slower than her world record.[1]
In a statement, McIntosh acknowledged her struggle in the morning heats, saying "I take full responsibility for my misjudgment in this morning's heats."[1] Meanwhile, Australia's Lani Pallister advanced to the final with a time of 4:05.22, positioned to compete against American legend Katie Ledecky, who posted the fastest qualifying time of 4:03.48.[1] Though McIntosh will compete in the 'B' final, she will not be eligible to win a medal.[1]