My rest run became a NOT

I ran 5 miles on the Jordan River Parkway. My goal was to have a rest run at a pace of 11, but I forgot my GPS. I thus ran a comfortable but slower (so I thought) pace. I timed myself during the last half-mile, as I had yesterday, and discovered I was running a bit faster than yesterday. My pace during that last half-mile was 10:38. I felt fine. My wakeup HR was 47.

I was on the trail about half and hour earlier than yesterday, but the temperatures were about the same as yesterday (76 (F) when I left home and 86 (F) when I returned).