In reply to IainRUK:
> (In reply to Marek) I do a 70% 40% load reduction over the final few weeks..
I've got an ultra in just over 2 weeks (Ultra Trail du Vercors, 86km). I've probably not being pushing it enough (certainly doing nothing like Iain's mileage, but then I am mortal).
Final training phase looking like this after coming out of a rest (36km) week:
Week 1: 70km
Week 2: 80km (although it depends how far I take this Sat's long run)
Week 3: 62km
Week 4: 22km (plus the ultra at the end of the week).
It's not ideal but too late to change much drastically now. For week 3 I'm away on business in a flat city so won't get any trails but that might actually help sharpen things up.