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20mile races in marathon build-ups

26 watchers
Feb 2012
12:59pm, 16 Feb 2012
10,991 posts
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DeeGee
What's your plan for Brighton, Johnny? Huge PB?
Feb 2012
1:00pm, 16 Feb 2012
1,807 posts
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TripletDad
In 2009 I ran the Edinburgh to North Berwick 20, just coming in under the 3 1/2 hour cutoff, I ran the Edinburgh Marathon 3 weeks later and had a poor run. That was an extremely hot day though wth water shortages so no idea if I left a good performance out on the road at the 20.

In 2010 I did it again and ran a fast (for me) 3:07 at the 20 miler and struggled again at the marathon 3 weeks later.

Last year I purposely didn't run the 20 and had a great run at Edinburgh, PB'ing by 35 minutes.

All of this is specific to me of course and my general fitness was much improved last year so I may have run well at the marathon anyway.

I'm signed up for both again this year but I'm planning on doing the 20 as an LSR rather than racing it.
Feb 2012
1:03pm, 16 Feb 2012
462 posts
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MudMeanderer
I've never ran one myself, but recall a comment from an acquaintance who suggested he valued racing a fairly hard (MPish) 20miler about 5-6 weeks out (I think) as a good psychological boost in marathon training. Alas I don't know what his times were like then, and whether he still does so - he seems to run and win marathons in training for target marathons now!
Feb 2012
1:07pm, 16 Feb 2012
46,406 posts
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Gobi
With my athlete head on I would never race a 20 miler, why leave a good marathon on the road somewhere at a distance nobody truly gives a shit about?

As a coach

Session as follows

5 miles @ MP + 60-90( time to get loose so start close to 90 and work down)
5 miles @ MP + 45-60
5 miles @ MP + 30-45

4 miles @ MP

1 mile however you like

1 mile cool down

The 1 mile cool down came into force as I discovered coaching nobody wants to back off at 19miles and look like they have blown up so we invented the go race the last mile and then do a cool down rule
Feb 2012
1:10pm, 16 Feb 2012
10,992 posts
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DeeGee
I was thinking something along those lines for myself, oh Dark One. Most of my LSR stuff has accidentally got progressive, so I know I can probably do something like that.
Feb 2012
1:12pm, 16 Feb 2012
11,566 posts
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JohnnyO
Thanks Gobi, thats very useful. It will be a PB anyway as I have never done a 20 before.

Dee Gee- I always plan for a huge PB, just don't always get one :) I just hope to get closer to the times that my shorter races indicate that I should be able to achieve, if that makes any sense.

And ninja, yes Wilmslow, do you want a lift?
Feb 2012
1:13pm, 16 Feb 2012
10,993 posts
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DeeGee
That's a shame, 'cause I'm aiming for your current PB and was going to suggest we make a bus.
Feb 2012
1:14pm, 16 Feb 2012
1,658 posts
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ndellar
I've just typed in a whole load of stuff, and deleted it all - to summarize Gobi is right. I know this because I've been there and done it the "run races too quick" way and it was miserable.

20 milers tend to get saved for a change of scenery and some sort of mission as above ^^^ :)
Feb 2012
1:14pm, 16 Feb 2012
2,944 posts
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Mr. K.
I`ve tried Gobi`s 20M plan before - it`s great. One of the best bits of advice I have been given.

20 milers are great so much you can do with them.
Feb 2012
1:16pm, 16 Feb 2012
46,482 posts
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Puddington
I'm not doing it this year. Forgot about entering it, actually. I doubt I could fit it in now, realistically.

About This Thread

Maintained by rf_fozzy
I'm interested in what people think about them - do you do them? How do you run them

Advice from Gobi:

5 miles @ MP + 60-90( time to get loose so start close to 90 and work down)
5 miles @ MP + 45-60
5 miles @ MP + 30-45
4 miles @ MP
1 mile however you like
1 mile cool down

The 1 mile cool down came into force as I discovered coaching nobody wants to back off at 19miles and look like they have blown up so we invented the go race the last mile and then do a cool down rule
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