I did it - my hill reps. Nine reps, 15 mins, HR between 80 and 85 per cent at the top of the hills - needs to be 90 per cent I think! ah, well, can't do everything. It was raining all day, so I'm pleased with myself. Total running time 55 mins. Well done Laura, I'm sure you did more than 13 miles. And well done Hilly, Johnny and all those on the other page..