If you took walking breaks in a marathon, did you really run the event? This question arises periodically here, and seldom fails to stir emotions to the flame level. I believe the misunderstanding stems from the fact that the "marathon" is really 2 different events. One of them is to cover the 26.2 mile distance without undue assistance. Period. The time is immaterial. (Within reason. In practise, one must still cover the distance in a reasonable amount of time.) In this event, walking breaks are a proven successful strategy. This was the event most first-timers were really signing up for, whether they realized it or not. It is a laudable, worthwhile, and not at all easy, event. The other might be described this way: given that you _can_ cover the 26.2 mile distance, do so in minimum time. Here, depending on one's fitness, it is still debatable whether walking breaks are a good idea. But the results of the best runners clearly argue that continuous running, with perhaps very brief water stops, at the fastest pace one can maintain for the entire distance, is the best way to win the event. Inasmuch as those of us who are competitive try to emulate the best, we would be well advised to train hard in order to lower the pace we can sustain. Few people are as compulsive as I, but I actually value the quality of "uninteruptedness" in some of my weekly runs. Perhaps it is because at least two runs a week involve some sort of interval -- three, counting a long run this time of year with water breaks -- that I want at least two others to be completely uninterrupted. I make sure my laces are well tied before I start, and I gauge traffic patterns for gaps as I approach intersections. Of course, I will stop if someone slows for directions, but afterwards I will feel slightly dissatisfied with the run. I believe that if I am going to race a distance, 10K say, then I need to engrave an image of that distance in my brain somehow. My brain can only learn from what my body sends it; and my body can only experience the 10K distance by running it uninterruptedly. But again, few are as compulsive as I am.