She shatters a 31-year-old American high school mark.
The American 800m runner is being pursued by ABC's Bachelor show.
Asbel Kiprop redeemed himself in the 1500m.
Samsung recently pulled its Diamond League sponsorship.
She faces some tough challenges in Qatar.
He will be running at the Diamond League Meeting on May 25.
The former University of Oregon standout ran the 1500m in 3:31.96.
Dejen Gebremeskel of Ethiopia is the pre-race favorite.
The 2011 world champion didn't perform well at the Olympic Games.