Americans set relay world record to camp comeback at swimming world championships

The U.S. swim team ended a challenging world championships on a high note with a world record in the women’s 4x100 medley relay, finishing with the most medals overall.

SINGAPORE — The United States, which had a frustrating swim world championships, ended on a high note Sunday with a record in the women's 4x100 medley relay in the last event of the eight-day championships.

The Americans swam a time of 3 minutes, 49.34 seconds, breaking their own old record mark of 3:49.63.

The United States finished with nine gold medals and 29 overall, ahead of Australia with eight gold and 20 overall. France and Canada were next in the gold-medal count with four gold medals. The 18-year-old Canadian star Summer McIntosh won all four.

The Americans battled a case of "acute gastroenteritis" picked up at a training camp in Thailand.

The malady clearly affected the team's up-and-down performances in the eight days in Singapore.