OFFICIAL: SYDNEY MCLAUGHLIN-LEVRONE MAKES HER PRE CLASSIC DEBUT AT #PRE50 🚨 🇺🇸 sydneymclaughlin16, reigning Olympic champion, world record-breaker, and queen of the 400m hurdles, is set to headline the newly added Women’s 400m at the 50th edition of The Prefontaine Classic She’s shattered her own 400m hurdles WR time after time — and ran her 400m PB (48.74) right here at Hayward Field What will she do on July 5? Only one way to find out. Witness one of the greatest to ever do it. Watch live on nbcsports + peacock 🦚