She says she wants to focus on the marathon for Rio in 2016.
The Olympic gold medalist on the track is now successful on the roads.
The Ethiopian gold medalist is heading to the roads.
The Ethiopian won her second Olympic 5,000m title -- 8 years after the first.
Toni Reavis argues that we shouldn't ignore Grete Waitz.
American Kim Conley runs a 5-second personal best but fails to qualify for Friday's final.
Check out these shots from a thrilling men's 10K final.
The Ethiopian closed with a blistering final lap, winning by over 5 seconds to cap off the first day of competition.
They were commemorating the 100th anniversary of the IAAF.
Get an inside look at the running culture in Ethiopia.