Day 9: Counting Laps

I've been involved in track and field and cross country since high school but my latest stint is as a certified USATF official.  As the starter for all of our home meets, I often find myself acting as the clerk, umpire, or lap counter. Today however, my son spent most of the day at the meet moving hurdles, getting starting blocks, and counting laps.  Now counting laps on the surface appears to be quite easy and it is until runners start getting lapped.  Well my son seems to have a knack for this job but I think he enjoys ringing the bell on the final lap best. As one can see, there are 4 laps to go.