Looking to build up from running marathons or your first ultra up to a more mountainous ultra? Then look no further than this 20 week training plan designed to target a 55km distance over fairly technical terrain with 2,100m/7,000ft of ascent over 3 mountain passes.

With a maximum of 6 runs per week, including plenty of hill training, this training plan is designed for the runner that is running regularly and capable of running a half marathon as a minimum. Week one total volume is 30km & 300m/900ft of ascent with the biggest volume week of 88km & 2,200m/7,200ft of ascent. Ideally you will need access to train on local mountains/hills to be able to replicate the ascent and technical terrain required. It is possible with just training in a city using stairs but much more effective with the appropriate terrain.

This training plan will include videos and tips to help guide you on topics such as nutrition, hydration & kit for race day and suggested strength and mobility sessions to work in alongside your running plan.

Every fourth week we build in a recovery block to help the body - and mind recover, adapt and get stronger for the next block.

I don't believe in doing huge distances, but building the physiological and mental resilience with the consistency of running and occasional double run days. Making this plan smart, and achievable for busy women.

Written by ultra running coach Lucja, veteran of UTMB and a string of some of the world's most arduous multi-stage ultra races.