In brief: very hot for morning here - hottest I think it's ever been so early (6:30am). It was 81F (27C), but at least it wasn't humid. The heat got me though. My legs were heavy and after 6K very very slow. In addition, I got GI cramping that was pretty bad through the last few km. Loren had some GI bug so maybe I got it?
It didn't feel good today. I was going OK through 5K but never felt fantastic. My legs are fine though - no weird soreness, nothing wrong that a bit of heat and a GI bug doesn't explain.
Total was 52:46 for 6:36/km with ave HR 150. Garmin data here.
Hip flexor felt much better but had some pain more medial almost in the groin area in same leg (right). It wasn't bad, but with the heat and GI issues it added to the fun today.