I've blogged before about the wayward nature of my heart rate readings. Somehow, if I set an HR target, I can never actually run to it.
I set out intending to do a fairly short run, keeping to a heart rate of 147bpm, which is my aerobic target rate. And I managed it! 2.39 miles, 131ft of ascent at 09:11 min miles, average heart rate 146 (with a max of 164 going up the steepest hill on the course).
Rather ridiculously, I feel very pleased with having done it. It was a cracking little run too. Very blustery, but with lots of lovely lambs to keep me company.