@D.P.
Given i've just signed up for a 45ish mile run (next Feb so not soon!), what kind of weekly mileage is usually a good base to be doing to cover that? I know with a marathon they suggest around 30 miles/week so the same logic would suggest about 50/week.
What would also be the longest runs you'd want to do? I imagine in training the last thing you want to be doing is running a 35 mile route given the recovery that'd be needed afterwards. Do you stop around the 20 mile point and then just work on the assumption that by doing enough of those runs it gives you enough of a base to carry on for the full race?
Hence why the first thing i typed in my post was the tag DP in
Good link though, seems to confirm my thoughts whereby long runs are around 20 and it's better to do 2 x 15 mile runs over a weekend than to do 1 25 mile run.
I'm not entirely sure where i'll plan on fitting these long runs in. It already annoys the wife when i go out for 1 longer run at the weekend and start putting off jobs around the house!
at a high level, an Ulramarathon training cycle is similar to a Marathon in terms of volume and structure. It help a lot to have more running years under your feet, e.g. a marathon you could training for from never running in 1 year as a bucket list item, but an ultra helps to have done 1 to 2 marathons first to get an idea of LRs and volume.
There is less need for any speed work unless you are elite or doing a very flat road ultra. Conversely, most ultra are on trails with hills so the biggest change is to try and train on that surface as much as possible. The pace is very different, so you have to get used to slowing things way down, and simply hiking up hills. Depedning on the course, things can be quite technical so running down rocky muddy trails is an important skill, more important than any intervals.
Run volume doesn't increase that much, and like a marathon increased volume will fairly directly lead to faster times but not necessarily a higher chance of finishing. For 50Mile I would hope to do more like 35-40MPW for the 6-8 weeks leading to the race as a minimum. However, if you are running on slow trails then covering that distance can take much longer.
Long runs are more important than in a marathon, but they don't scale much higher. If you do a LR on a road then 20-25 miles is plenty. On trails and hills this can be reduced a but, so 16-20miles is a lot and liekly will take longer than 25 on the road. LR that match the race conditions in terms of height gain and surface are important. The LRs are more about time on your feet and getting yourself very tired, depleting glycogen and getting used to eating and drinking.
While many runners swear by back to back LRs, e.g. 20miles saturday and 15-20 sunday. I find this fairly pointless and quite dangerous, and the limited research shows there is not a lot to be gained if anything, especially for races under 100 miles. I never bother with these, but I do often run the day after a LR, but just a regular every day run at the most. IOf I went particularly hard on the LR then I definitely take a rest.
At 50miles, you quite likely start or finish in the dark unless it is a very flat fast road course. So training in the dark with the headlamp is important. This solves the time issue, because you can do your LR starting at 5am , or go out after dinner and run into midnight/2am etc. Running around thw woods and hills in the middle of the night, tired and needing sleep is perfect ultra training. Instead of the back to back LRs you can split things up, so for example run friday night for 4-5 hours in to the dark (plenty of hiking is fine). Get up earlyish saturday after far too little sleep and dor another 1hr before the family is active. Do all your day chores and when you feel like crashing on the sofa to Netflix, go back our for another 2 hours in the evening. Pace doesn't matter, walk it if need be. Then hopefully get a lseep in on Sunday.
Unlike a road marathon, time on your feet matters. With my family I can do things like go for a LR saturday at 5am, get back for an early lunch and then take the kids on their bikes to the park, then doing the shopping and then a couple of hours in the garden. All that extra activity is detrimental to running the fastest road race, but is perfect for an ultra where some many more muscles are used and you have to train for a fatigued body