In terms of 1/2 PB - wracking my brains - can only think of one proper 1/2 mara I've ever done. And that was on a hilly course (Liversedge) so came in about 1:32 (ish). I certainly think 1:27 is do-able on a favourable course. Possibly even 1:25 on a good day.
In terms of marathons - I just think last time around, I ground all the zip out of my legs with those steady midweek 13-15 mile runs. I know they were there for a reason - but I just felt I was running by 'rote' for most of them.
Still, all good experience though.
This time: Monday = hill sprints - certainly during the early 'base' phase. But look to keep them once a week throughout (more for variety than anything). Speed/Reps = Tuesday Tempo = Thursday Long runs = Sunday Rest of the week to be filled with easy runs (and I mean easy). And maybe the odd long hill/threshold session depending upon what phase of the plan I'm in.
Another 'new' joiner here. New poster, but long-time lurker.
Bit of background - Have run a couple of marathons previously. 3:13:02 and 3:02:20. Have run numerous 10Ks; PB = 39:44 Again, have run a number of 5Ks (>5);PB = 19:30 Plus have run loads of fell races, distances from 4 miles up to 13 miles.
Aims for 2012 - Dip under 3 hours Take 60-90 seconds of 10K and 5K PB times.
I'm looking at either Straford-upon-Avon or Manchester marathons in the spring (20 weeks away). Plus assorted club races up to that point.
Training plan - have followed P&D in the past, now crafting a plan based on Fitzgerald & Hudson. With hindsight, think the P&D plan worked for me in terms of raw endurance, but left me a little light in terms of tempo and pace/zip.