Completed my medium run

I completed my medium run, but the total run was 1 hour 65 minutes instead of 1 hour 50 minutes. I went to the bench that is 0.3 miles south of 106th South and was right on schedule for a 1 hour 50 minute run. However, I was slower going back, causing the total run to be 15 minutes longer than I had expected. I was getting tired when I reached the bench and turned around, and I walked a lot on the way back and took extra rest breaks. Each break was short, about 20 - 30 seconds, but they add up to increased time....