The 50th edition of the Prefontaine Classic was billed as one of the most stacked single-day track and field meets ever assembled, and despite some high-profile late withdrawals from Olympic champions Kenny Bednarek and Quincy Hall,

Kenyan Faith Kipyegon reset her own world record in the women's 1,500 meters, finding another gear on the last lap to pull away at the Pre Classic.

Kenyans Faith Kipyegon and Beatrice Chebet broke distance world records at the 50th edition of the Prefontaine Classic at Hayward Field.