1.5M views · 13K reactions | These two  Who will rule in Paris: the reigning 400m hurdles world champion @femke_bol or the 2022 world champion and current world record holder Sydney McLaughlin-Levrone?  Full video in our stories  #WorldAthleticsChamps | World Athletics | Facebook

A year ago today at #ToyotaUSATFOutdoors, Dalilah Muhammad set her first of two world records in 2019 with a 52.20 in the Women’s 400m hurdles. The previous record of 52.34 was set by Russia’s Yuliya Pechonkina in 2003. | USA Track & Field

4.7K views · 156 reactions | It's USATF Rewind time! Remember Sanya Richards-Ross at the 2012 Prefontaine Classic? Watch her then-world lead in the women's 400m! | USA Track & Field | Facebook

15K views · 55 reactions | The men of the Paralympic 400m T38 Final were born for this  #USATF #JourneyToGold | USA Track & Field | Facebook

3.7K views · 70 reactions | When it comes to swimming the 400m is a great marker of fitness and it falls into the middle distance category for swimming. In this video, Heather & Mark are here to help you focus on how to get your time under 8 minutes with some specific training sessions and pacing tips! | Global Triathlon Network | Facebook

5K views · 21 reactions | When it comes to swimming the 400m is a great marker of fitness and it falls into the middle distance category for swimming. In this video, Heather & Mark are here to help you focus on how to get your time under 8 minutes with some specific training sessions and pacing tips! | Global Triathlon Network | Facebook