It’s as sure as night follows day. After the dust has settled from a race, social media is alive with comments and friends that dissect their runs and performances. “Could I have gone quicker?” “What if I had tried a little harder at this point in my race?” One of the debates that invariably surfaces is the ability to go harder than you may have thought possible, perhaps running more so to feel than to splits. Many people I know like to set splits for their race and make sure they hit them, which ultimately gives them a time they are proud of and rightly so. Nothing wrong...