I know a guy who ran a sub-3-hour marathon without any formal training. A former college runner who’d since gotten into surfing, he jumped into a race on a dare and was able to string together 26 ...

6:52 mile pace…for 26.2 miles. That’s the clip you have to run at to break the elusive three-hour barrier in the marathon, a time goal that many runners spend years chasing. Among those runners who ...