What I found absolutely fascinating after my last marathon was how my heart rate hovered in the Zone 2 and 3 for most of the race. I had turned off the audio on my watch because frankly I did not want to hear the Garmin lady’s voice tell me my heart rate and pace every 3 minutes. I used to like it, but I have found it to be more distracting than anything else. So, the truth is, I had no real idea where my heart rate was during this race. I only knew that my performance status