I did a half marathon last April (2 hrs 13 mins) and have got a place for London marathon 2012.
As the marathon is just over 24 weeks away I looked at the beginners and intermediate 24 week training schedules on the London marathon's website.
The longest training run seems to be 130 minutes for the intermediate plan. Given that I run approx 10 minute miles does this seem right? I thought I would need to run at least 20 miles prior to attempting a marathon.
If I run for 130 minutes this would only get me say 15 miles.
Any advice appreciated.