Can anyone help? I played some badminton and then the following day a game of squash followed by a 6M run, ever since then if I run any distance even 4M my legs fatigue quiclky and my quads are sore the next day. I've a race in a weeks time and am really worried that I wont make it or will go and wont be able to finish or be last in. I usually run approx 20M a week but this has dropped right off over the past two weeks. Any advice?