She has never been beaten on the storied Hayward Field.
The American runners have excelled at Hayward Field in the past.
The American 800m runner is being pursued by ABC's Bachelor show.
She was the 2011 NCAA and U.S. Champion in the steeple.
He wants to bring home the 10,000m gold in London.
The Brit ran a world leader while teammate Galen Rupp took third in a personal best.
Fifteen men break 28 minutes in the 10,000m on a rainy night at the Prefontaine Classic.
The two-time Olympic medalist might be in for his toughest challenge yet.
Prefontaine Classic men's 5,000-meter field is stacked!
They will take place at the Prefontaine Classic.