Sydney Marathon with Me

My watch strap broke just moments before the race started, so while I did have the help of the 3:15 pace group for much of the race, I never really knew what my paces were or what my HR was. I tried to stay behind the pacers as long as I could, but I did get ahead of them from about 15-40km. I was running solely on feel. . We happened to get a glimpse of the lead men and Kipchoge on this course that doubles back on i...