With an estimated 30k starters, just over 10% of #BostonMarathon athletes have uploaded to @Strava already. #bigrundata

With an estimated 30k starters, just over 10% of #BostonMarathon athletes have uploaded to @Strava already. #bigrundata

With an estimated 30k starters, just over 10% of #BostonMarathon athletes have uploaded to @Strava already. #bigrundata posted first on grassroutespage.blogspot.com