Faith Kipyegon on Wednesday evening clocked a stunning 3:50.37 to miss Ethiopian Genzebe Dibaba's world record by three tenths of a second (0.3secs.) in the women's 1500m at the Monaco Diamond League.
American Allie Wilson led through 400m in 59.89 and 800m in 2:01.64 before Jamaica's Adelle Tracey took over to keep the pace as hard as possible.
Kipyegon ran by herself for the last 600 meters after pacers shed, aided by lights along the track showing her the world record pace.