Mario Fraioli breaks down the top contenders in each race.
Scenarios abound in the determination of the men's winner.
The London Marathon champ has a penchant for mobile phones.
More big names join an already-stacked field.
WMM contenders Gebremariam, Kiplagat lead respective fields in Daegu, Korea.
He is looking for his third victory.
Reigning Boston Marathon champ dominates star-studded field.
The runners will be competing on a 1130-meter circuit
The Boston, New York, and London champions will face each other in Sicily.