As I am aiming for a middle distance triathlon in September, I want to make sure that I can complete it before shelling out the (rather high) entry fee. my main concern is that my knees cope with the run section which will be 21 Km (a half marathon). In the past, I have had a bit of trouble with my knees playing up. I thought it was because I had run too much (increased my training too quickly, too many races close together, that sort of thing). So for the last 8 months, I have been trying to acclimatise my knees by running around 5km three times a week To take stock of how my knees are with running, I decided to enter a 10K race. The race I entered was the Bristol Race For Chocolate 10K. It sounded like a fun race and was on 27th January, which would give me plenty of time to train for my main race in September. I wanted a 10K as it is just under half the distance of my target middle distance and if my knees cope with that then I have plenty of time to increase the distance...