Today on AtoZrunning:

Have you ever searched the internet for running advice? We kick off a new series where we search common running topics and react to the search engines’ top suggestions. In the world of running, world records and fast running are all but guaranteed in Valencia, and this half marathon fell right in line. The question around doping allegations continues to grow. We’ll help you make sense of it all. And in case you weren’t aware, there’s a world record for running a marathon in high heels, and a man tried to break it in Chicago. 

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