Lynn Davies is the Welsh record holder with 8.23m. He was also the Olympic gold medallist in 1964.
The world record, as well as the Olympic record, for the mens' 200 meter freestyle was set by Michael Phelps on August 12th, 2008, at the Beijing Summer Olympics. His time was 1:42.96 .
The Olympic 400m men freestyle record is 3:40.59 by Ian Thrope.
Wilson Kipketer of Denmark holds seven of the ten fastest 800m times in history, including his world record of 1.41.11 from 1997.