A lot of runners (me included) are data nerds and record every runs date/time, distance, pace, weather, shoes worn, how we're feeling, temperature, elevation gain etc.
A lot of runners (me included) are data nerds and record every runs date/time, distance, pace, weather, shoes worn, how we're feeling, temperature, elevation gain etc.
Watch the start of most race events and the first thing that people will do as they start is turn on their watches.