Dennis Kimetto Breaks World Record at Berlin Marathon http://t.co/zLUIl8PT2r

Don't worry, RFID timing mats are safe for runners http://t.co/JKngYLhHJg

For best performance this is what you should think about http://t.co/WQfp5DAoGf

Ill effects of sitting for runners http://t.co/B8WqwQwqpQ

RT @WomensRunning: Here's why the foam roller should be your best friend after tough runs- http://t.co/jV5FnJvYUG

RT @runnersworld: Research reveals how to stay headstrong when the going gets tough on the run: http://t.co/H11Z885FHQ http://t.co/baYjm5Lw…

http://t.co/CRpI38yiS3

Why do I run? Some stupid and some not so stupid reasons. Part 1 @runizen http://t.co/myE9MNA2AK via @runizen