Runners, by their behavior, oftentimes reveal their political preferences. For example Democrats expect aid stations, whereas Republicans are prepared to run the race without using or receiving any aid. Democrats, on the other hand, often select trail runs where the footing is uncertain and the course is not certifiably accurate.
Democrats like to try new things.
Traffic control is important to Republicans, who want their routes clearly marked and police on hand to let the runners go unimpeded to the finish. Republicans view bandit runners as unwelcome intrusions who should be kept off the course. When you talk about the Boston Marathon, Republicans tend to endorse that race's policy of requiring that a qualifying standard be met before a runner can enter the race. Democrats, on the other hand, believe anyone can line up at the front of the race. Republicans prepare diligently for competitions, register early for races, but won't show up for the race if they're not in shape to run their best.