Timothy Ritchie and Neely Spence Gracey are the pre-race favorites.
The 51-year-old broke the barrier for the 38th straight year.
Although she missed the recent U.S. championships with an injury, Neely Spence Gracey is poised to become the next great American runner.
A look at 10 of the top up-and-coming runners in the United States.
Ben True leads the way with 6th-place finish. U.S. women place fourth amongst teams.
We caught up with the first-year professional ahead of this weekend's World Cross Country Championships.