Why does the 3:45 schedule suggest a 1:45 half is needed? All the race-from-race predictors suggest a 3:45 marathon comes off a 1:48 half.
I'm not sure why I mind having just done Fleet in 1:44:16, but I guess would like to know if I have a bit of "fat" in my 3:45 target!
I'm sure this has been discussed elsewhere but I won't be able to find it!
Comments
Because 1:45 is a rounder number than 1:48? Because there's a bit of leeway in it? Or possibly because the whole prediction thing is guesswork in any case, particularly trying to relate it to any given individual?
A friend of mine was good for a 1:35 half but struggled to break 4 hours for a marathon, whatever he did in training. Likewise I'm sure there are plenty whose marathon PB is only just over twice their HM PB.
That said, Fleet in <1:45 should set you up for a 3:45 marathon, assuming you've done the long runs and don't do the first half of FLM in 1:45!
We're all different.
If your endurance is generally better than your speed (eg. if older or female), I think you find your half pace is closer to your marathon pace than if you're better at speedwork. Just a hunch.
struggling to figure out what my target time should be so I don't go too fast in the first 13 miles.
I've used a couple of prediction methods based on my last two race times in the last few months
(a half marathon and a 5 miler), the average pace of my fastest training long run, and my last yasso 800.
h/m/s
5 Miles: 00:33.30 Predicted marathon time: 3:17:04
Half marathon: 1:41.50 Predicted marathon time: 3:34:46
21.5 miles: 3:02.45 Predicted marathon time: 3:45:21
Yasso 800's 00:3:20 Predicted marathon time: 3:30:00 (have added on the recommended 10mins).
All runs were on a flat surface, apart from the 21.5 miles which was undulating (not hilly).
These are my longest 4 training runs:
1) 21.5 miles (I ran this averaging 8:36min per mile but was only 6 days after the previous 21.5 miles)
2) 21.5 miles (8 min miles for the first 7 miles and last 3 miles, and the middle 11.5 miles at 8.55 min miles had a lot of the main undulation)
3) 21 miles
4) 17 miles
The last few weeks before starting my taper I've been running 40+ miles per week.
After the last 21.5 miler I didn't have much left in my legs, maybe another mile or two at 8 and half min mile pace
The range of predicted times is quite broad but I'm leaning towards 8 and half minute miles, so thats about 3 hrs 42 mins.
I've limited my long runs to using a gel on hours 1 and 2, but in the actual marathon I think I will used a gel at the start, then every hour after. I'm also wondering how my tapering and carb
loading will affect my energy levels on the day.
Any help/advice on this would be greatly appreciated.
Thanks a lot
DB
Really suprised at this. I've checked calculators but I am a little sceptical.
Recent half - sub 1h40m (Berkhamstead - very hilly) Recent 20m 2hr50m (Oakley - undulating)
RW calculator 3h 29m from the half time, and 3h 46m from the 20m time
Maybe this is down to the type of training I've done - possibly need more longer runs....... a bit late now for VLM
My plan is to start moderately for the first half and then go faster in the 2nd.
Don't want to die in the last 5 miles.
hi guys, could you help me out. are you supposed to pick a pace and stick to it in Yasso 800, or go all out on each one and toke the average?
the first I think - in general intervals / reps are supposed to be done at a consistent pace.
First couple should be fairly easy. They get harder with the reps.
hello achy leg i ran brentford half in 1.35 then ran the shakespere marathon in 3.42, both pretty flat races. i think everyone is different my 10k is 43 mins not great, i run halfs better.
I've got a HM pb of 1h35 ( 2 months ago) and a lot of the predictions put me in the 3h20-25 bracket but I am playing in safe and aiming for a 3h30 half. I think the predictions need to be taken with a pinch of salt. In my half marathon I was really pushing the pace all the way and working hard, in the marathon I want to be running at a comfortable pace that doesn't make me feel as if I am pushing and I've found an 8 min mile pace to be that
Depends on how much time you have got to do quality training.