DOHA, Qatar - Hungarian swimmer Katinka Hosszu set a world record in winning the women's 100-meter backstroke at the short-course world championships yesterday. It was one of the three world records on the second day of the championships at Hamad Aquatic Centre.

Hosszu clocked 55.03 seconds, surpassing the record of 55.23 set by Shiho Sakai, of Japan, in 2009.

Meanwhile, Chad le Clos, of South Africa, picked up his second gold, and broke the 100 butterfly world record. Le Clos won in 48.44 seconds, slicing .04 seconds off the mark by Russian Evgeny Korotyshkin in Berlin in 2009. The day's other world record was by Brazil in the men's 4x50 medley relay.