The 2008 and 2009 champion returns.
Defending champion Matthew Kisorio leads a loaded lineup.
The Kenyan won by almost 2-1/2 minutes!
He's dominated every race he's entered since Boston.
Check out these photos from a fast race in Canada last weekend!
She beat the great Deriba Merga to the finish line with a 3:55 head start.
Two former Boston Marathon champions are in the mix.
The majority of the elite runners are from Ethiopia.
The runners had competed against each other since 2007.