This 100 Mile Ultramarathon training plan is designed for runners who are looking to challenge themselves – perhaps to set a new PR, or simply to run their best race.

Designed to be run over 6 months, the plan features one speed day per week, and more mileage than the ‘Just Finish’ plan – so you’ll have a stronger base and better running economy.

Who is it for?: Established runners who want to challenge themselves, and perhaps set a new PR.

If you’ve already run a distance event such as a marathon and want to improve your performance, check out these training plans.

Our Improver training plans balance training and miles with rest days and (optional) speed work; only include the speed work if you want to improve your base running speed.

If you’ve got some distance running experience, and want to push yourself a little, this is the training plan for you.

How Long?: Six months, or 24 weeks.