Women'S 400 Meter Hurdles World Record. Welcome to the world athletics watch party. Sydney mclaughlin shaved nearly a second off of her 400m hurdles world record time from june, crossing the line in 50.68 seconds for her first world title#nb.

Remember you can join the conversation on twitter using the #watchworldathletics hashtag.dalilah muhammad was dri. Doug mills/the new york times.