Gretchen Walsh of the United States celebrates after breaking the ... [+] world record in the Women's 50m Butterfly Semifinal during day one of th

Grad student Alex Walsh won bronze with the Mixed 4×50 Medley Relay. Walsh swam the anchor leg of the prelim session, with the Americans finishing third in the evening final. It was her second medal of the meet after earning silver in the 200 IM on Tuesday.

Lani Pallister has won the 800m freestyle and Alex Perkins has taken bronze in the 50m butterfly as Australia shone at the World Short Course Championships.

U.S. men's and women's relay teams captured gold medals and shattered world records at the short-course swimming world championships in Budapest on Tuesday.

McIntosh and American Gretchen Walsh each broke a world record on the first day of the world short course swimming championships in Budapest. McIntosh, 18, broke the world record in the first final of the six-day meet in the 400m freestyle.