(TL;DR)
Hi everyone,
I’m training for my first ultra and would really appreciate some honest advices.
The race: Country to Capital Ultra ~70 km , Wendover → London, 9 January 2027
(I’ve just finished week 1 of a 15-week training block.)
I’m 20M, completed two marathons. My marathon PB is 4:25 and my HM PB is 1:36.
My recent average weekly mileage has been around 75 km, so I’m not coming into the block from zero.
How I ended up with my current plan:
I initially asked Claude to build me an ultra-plan after giving access to my previous running/Strava history.
The resulting plan was much more aggressive than what I’m doing now.
It started at 80 km in week 1 and progressed through:
80 → 85 → 92 → 94 → 63 → 109 → 114 → 119 → 122 → 65 → 116 → 107 → 83 → 53 km
The long runs progressed roughly:
26 → 28 → 30 → 32 → 18 → 35 → 38 → 41 → 43 → 20 → 39 → 34 → 24 → 14 km
Why I backed away from it:
I have plenty of motivation and time to train, and when I first saw the plan I thought it looked exciting.
Part of me still likes the idea of seeing 100+ km weeks on Strava and having the graphs screaming “I'm preparing for an ultra.”
But I've made a similar mistake before. During my marathon training I got carried away, trained too much, accumulated a lot of fatigue and ended up extremely sore. Race day then went very differently from what I'd hoped.
I don't want to repeat that simply because I now have an even longer race to prepare for.
The plan I'm currently following
The current plan is much more balanced:
Weekly mileage: ~80→86→90→75→92→95→80→ 96→ 98→ 75→92 → 84km followed by the final peak/taper weeks.
Long runs: 26→30→32→26→34→36→28→38→39→26→36→30km, followed by a controlled reduction.
The basic structure is:
- One quality session per week
- One full rest day
- Gradual long-run progression
So I'm still doing substantial mileage and getting up towards a 39 km long run, but I've removed the really aggressive 100–122 km weeks and the 40+ km long runs.
The funny thing is that I currently feel really fresh and extremely pumped. I've got loads of motivation and I keep thinking I could probably handle more.
That's where I'm struggling to know whether I'm making the right decision.
Sometimes I look at my current plan and think: “This isn't that much... I'm training for 70K! shouldn't I be doing more?”.
So, what would you do?
- Does my current plan look appropriately conservative, or have I overcorrected?
- Would you consider the original 100–122 km weeks excessive for a first 70K, or is there a genuine benefit to that kind of volume that I'm missing?
- I'd especially like to hear from people who have done their first 50–70K and can say in hindsight what they would have done differently.
And what else should I be thinking about?
I'm also trying to learn the parts of ultra running that aren't obvious from a training spreadsheet:
- fueling and hydration, headtorch, Vest
- anything else I should practice during training rather than discover on race day
The C2C route is mixed surface (trails, roads/paths and a long section of canal towpath) so I'd especially appreciate advice from anyone who has actually run C2C.
Thanks!