Ultra marathon training plan: 12-week guide for beginners

Here we help you structure your ultra marathon training into 12 straightforward weeks, so you can hit the ground running in your training

group of runners cross a field in an ultra marathon race

by Kate Milsom |
Updated on

If you've already got the foundations down when it comes to preparing your body for your first ultra, then you’re ready to get stuck into a beginner's ultra marathon training plan.

More than any other distance, kit now becomes vital. Extras that you may not have considered as a shorter-distance runner become essential. A comfortable running pack that offers quick and accessible storage but fits and moves with you perfectly is key. So too is an understanding of layering, controlling heat loss, carrying fluids and creating a nutrition package that works for you.

How do I prepare for my first ultra marathon?

man runs along field in ultra marathon race
Credit: Threshold Events

Pay attention to pace. Starting too fast will end in disaster. The best ultra-runners are those who have become comfortable with a speed that would feel like a crawl over shorter distances. Ultras are all about mixing and matching walking with running, stopping to see the sights, having a coffee and spending plenty of hours on your feet.

Be organised about your race preperation ahead of the big day, especially how to spend the 24h before a race. It's crucial you prepare mentally and physically for the effort you're about to go through.

Perhaps the training week we’ve outlined below seems pretty standard when it comes to training – with plenty of 10km-type efforts – but feel free to go out all day on a Sunday running as you feel, stopping whenever you want. Remember that above all, ultra training is all about time on feet.

12-week ultra marathon training plan

We'll say it again - aim for time on your feet – it's going to be important. The ultra training schedule below speaks for itself after that, so pay particular attention to those small details. Diet and hydration are essential, and kit is also massively important.

Let’s talk about something that’s often ignored in endurance training: rest. This is key, don’t be frightened to counter big weeks or huge fortnights with seven days where you barely do anything. It may seem counterintuitive, but rest and doing nothing is actually central to training for an endurance event.

Week one

Monday: Gym

Tuesday: Run 6km at an easy pace

Wednesday: 20mins fast in the hills

Thursday: Run 8km at a steady pace

Friday: Rest

Saturday: Run 13km at a relaxed pace

Sunday: Run 5km at tempo

Week two

Monday: Gym

Tuesday: Run 10km at an easy pace

Wednesday: 25 minutes fast in the hills

Thursday: Run 10km at a steady pace

Friday: Rest

Saturday: Run 16km at a relaxed pace

Sunday: Run 5km at tempo

Week three

Monday: Gym

Tuesday: Run 11km at an easy pace

Wednesday: 30 minutes fast in the hills

Thursday: Run 11km at a steady pace

Friday: Rest

Saturday: Run 19km at a relaxed pace

Sunday: Run 6.5km at tempo

Week four

Monday: Gym

Tuesday: Run 13km at an easy pace

Wednesday: 35 minutes fast in the hills

Thursday: Run 13km at a steady pace

Friday: Rest

Saturday: Run 23km at a relaxed pace

Sunday: Run 5km at tempo

Week five

Monday: Rest

Tuesday: Run 5km at an easy pace

Wednesday: Rest

Thursday: Run 6km at an easy pace

Friday: Rest

Saturday: Run 13km at a relaxed pace

Sunday: Run 5km at tempo

Week six

Monday: Gym

Tuesday: Run 8km at an easy pace

Wednesday: 40 minutes fast in the hills

Thursday: Run 11km at a steady pace

Friday: Rest

Saturday: Run 29km at a relaxed pace

Sunday: Run 8km at tempo

Week seven

Monday: Gym

Tuesday: Run 11km at an easy pace

Wednesday: 40 minutes fast in the hills

Thursday: Run 16km at a steady pace

Friday: Rest

Saturday: Run 32km at a relaxed pace

Sunday: Run 10km at tempo

Week eight

Monday: Gym

Tuesday: Run 16km at an easy pace

Wednesday: 40 minutes fast in the hills

Thursday: Run 19km at an easy pace

Friday: Rest

Saturday: Run 19km at a relaxed pace

Sunday: Run 10km at tempo

Week nine

Monday: Rest

Tuesday: Run 6km at an easy pace

Wednesday: Rest

Thursday: Run 8km at a steady pace

Friday: Rest

Saturday: Run 16km at a relaxed pace

Sunday: Run 8km at tempo

Week ten

Monday: Gym

Tuesday: Run 19km at an easy pace

Wednesday: 30 minutes fast in the hills

Thursday: Run 10km at a steady pace

Friday: Rest

Saturday: Run 13km at a relaxed pace

Sunday: Rest

Week eleven

Monday: Gym

Tuesday: Run 10km at an easy pace

Wednesday: 20 minutes fast in the hills

Thursday: Run 6km at a steady pace

Friday: Rest

Saturday: Run 10km at a relaxed pace

Sunday: Run 5km at tempo

Week twelve

Monday: Light stretching session

Tuesday: Run 6km at an easy pace

Wednesday: Kit preparation

Thursday: Run 3km at a steady pace

Friday: Rest

Saturday: Rest

Sunday: Ultra marathon race day!

Top image: Threshold Events

Don't forget to subscribe to the Live For The Outdoors newsletter to get expert advice and outdoor inspiration delivered to your inbox.

For the latest reviews - including extra photos and kit that won't appear online - pick up a copy of the current issue of Trail Magazine.

Just so you know, we may receive a commission or other compensation from the links on this website - read why you should trust us