Having just completed the 10k 4 week schedule, with a pb time in a local 10K, I now have a half marathon to look forward to in 4 weeks time. My last half marathon was 90 minutes (a couple of years ago) after 3 or 4 11-13 mile runs over the 2 weeks leading up to the race. I can only train 3 times a week due to time constraints (hence the 10K schedule was great), and have no real problem with going the distance - what I need is a similar schedule to the 10K one but for the half marathon. The half marathon schedule shown on this site is a 10 weeek plan, training at short distances (rarely over 10 miles)and almost every day. How should I train in order to lower my previous time of 90 minutes? Is there a half marathon 4 week schedule?