I had every intention of running 3 laps around Lake Ivanhoe today during the rain, since it was supposed to do that all day. Didn't happen. Either did my 3 laps. The sun came out and it got hot. 79 degrees at my run time.
I took off at a pace that I thought I could do my 7.5 miles with relate ease. I felt real good after 2.5, which is 1 lap around the lake. At about 4 miles, I started to feel tired and having a hard time. I usually feel good when my mind is wandering and I'm thinking about anything but my breathing and arms and legs.
When I hit home at 5 miles, I called it quits. 51 minutes. 10:12 average pace. The good thing is that I kept an even pace the entire time and thought I was running around 10 minute pace. When you can tell the relative speed you are running without using a clock, that's a good sign of your progress.
I feel a little let down, but instead of completely resting tomorrow as I planned, I will take an easy run at some point during the day.