Random Runners would add a social and competitive element to the runs too. You could announce "hey, if anyone wants to run 26.2 today, I'll be at the Java Cafe

Random Runners would add a social and competitive element to the runs too. You could announce "hey, if anyone wants to run 26.2 today, I'll be at the Java Cafe on Fifth st. and Main at 3pm." Random Runners could report on the outcome of the race and even have a leader board.