Ryan Hall tweeted earlier today that his personal best for a plank is 2 minutes. Doesn't that seem a bit on the weak side for an elite marathon runner? I'm hoping he was being modest since it seems fair to say that most decently fit high school runners are capable of 2 minutes if putting their minds to it. That WR is ridiculous though.
https://twitter.com/ryanhall3/status/420322024645345280/photo/1