Really cross with myself! I seem to mess up just about everything I do lately. Out late and it was hot even though I had a shaded road to run on. I looked at the Garmin and thought the distance said 2.6km and I'd run too far; instead it was 1.6km! How could I be so bloody stupid? Started Garmin again but I was so annoyed at having spoilt the session I stopped after another 0.5km.