The race pits Olympians against world champions.
The 2009 winner, Will Leer is hoping for another victory.
He ran a sub-four-minute mile for the first time.
A Saudi runner has a good chance of upsetting the Kenyans.
How fast you can run four laps on a track may be an important statistic.
He is going from the marathon to the mile.
May 6th is the anniversary of Roger Bannister's world's first sub-4 minute mile.
He compares them to the Roman Coliseum.
She hopes to qualify for the U.S. Olympic Marathon squad.
He came within a fraction of a second of the national 2-mile record.