Mergia is returning to London as the 2010 champ for the first time as she initially finished 3rd, but has since been upgraded after Liliya Shobukhova and Inga Abitova received doping bans.
Molly Huddle was the top earner with more than $150,000 in prize money this year; Jared Ward was the top man at $105.166. The Americans are a way behind the top international earners as Ethiopians Aselefech Mergia and Lelisa Desisa earned $307,000 and $275,000 respectively.
Tigist Tufa was a 2:40 marathoner 2 years ago. Now she's London champ.