10.3 miles. The usual feelings for 45 minutes or so and then everything was better breathing wise. Sure wish I knew what was going on with my heart and blood pressure the first 4 miles of a run. Doctor said I have really high vagal tone, but I thought that was a good thing and I don't think that's the whole problem. Perhaps blood pressure involvement as I'm borderline low in that category. Average: 9:27/mile, 96 bpm Max: 7:09/mile, 121 bpm | 