This 16 week progressive training plan is designed for those who already have a solid level of running fitness upon which to build. This plan is specifically aimed at those who have previously run the marathon distance and are looking to push for a specific performance time. As always, our aim is to get you safely to the finish line whilst minimising the risk of injury or illness, we therefore suggest that you need to have been consistently running 35-40+ km per week for at least 6 months prior to embarking on this plan.