He is the man to beat in Moscow.
Mo Farah continues to lead the charge.
A list of the top 100 track & field athletes using the social media service Twitter.
The running community applauds these efforts.
British runner comments about running half of the London Marathon this weekend.
Her record-setting time came 10 years ago this month.
A persistent foot injury has sidelined her since 2012.
Briton reportedly cuts deal with organizers to complete first half of London Marathon.
She questions why no male 1500m runners made the squad.