17 Mar 2009

Jackson breaks 400 freestyle world record

12:05 pm on 17 March 2009

The British swimmer Joanne Jackson has shaved almost a second off the women's 400 metres freestyle world record at the national championships in Sheffield.

The Olympic bronze medalist in Beijing clocked four minutes 0.66 seconds to eclipse Italian Federica Pellegrini's mark of 4:01.53.

She finished ahead of double Olympic gold medallist and 800 freestyle world record holder Rebecca Adlingtonwho also beat the old record.