I started running about 5 months ago and am hoping to take part in the 2003 London Marathon. In last month's Runner's World there was an article about running doing 4 sessions a week. I have started doing this, it breaks down into a long (80 mins so far) run on a Sunday, easy (30 min) run on Tuesday, Tempo on Wednesday and Speed Session on a Friday. I also swim on a Saturday morning and get a sports massage once a week. Will this schedule be enough to get me through the Marathon? I would aim to build up the long run to 2.5 to 3 hours plus in time - any advice gratefully received!