He expects to be at the level of rivals Mo Farah and Galen Rupp.
The three-time Olympian will also run the Shamrock Shuffle in April.
Competitive fields made for an exciting day of racing in St. Louis.
He's coached by Greg McMillan.
Ritzenhein, Jager, Bumbalough added to already solid field.
He paced his former high-school teammate for 12 miles.
We caught up with the newly-minted 2:07:47 marathoner.
Ethiopians rule the the roads in the Windy City.
Check out these great shots from the city of Brotherly Love!
It was a Kenyan show of force on the streets of Philadelphia on Sunday morning.