have destroyed the world record — while femke bol of the netherlands, who took bronze in 52.01 seconds would have been under the world record as of six weeks ago. that gives you a sense of the achievement. that gives you a sense of the achievement. and we can discuss it all with sally gunnell, who is a british former track and field athlete who won the 1992 olympic gold medal in the 400 metres hurdles. sadly, great to see you. what did you make of the performance today? unbelievable. i knew it was going to be some rice out there, especially after the american trials, but a run that sort of time, 51.46 is astounding. those sorts of towns happen when you are being pushed by someone as good as delilah. she went someone as good as delilah. she went so hard and she really, really changed sydney to see what she had of that final hurdle. it was just,