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I had this with a pair of asics gel excel 33 that I got last summer. I was rotating 3 pairs of trainers at the time, 2 adidas and the asics. After a few miles in the asics I got the burning sore sensation on the ball of the right foot. Almost felt as if their was no give in that part of the shoe and every footstrike became very painful. This happened the first 7 or 8 times I wore them and I considered throwing them away. The 130 pounds they cost stopped me doing that. Then all of a sudden they were fine, no more burning pain at all. I've probably put 300 miles on them since and the issue has not come back and they are now one of my favourite pairs to run in.

Well glad to see i'm not alone on the no HRM front. 

Tenjiso - I didn't use 220-age, I spent a week taking my resting rate and did some long, flat-out, hill repeats to get my max. Which turned out to be 190. 220-40 is certainly not 190. You could be right about Jack Daniels on the mara pace efforts. I've only done 1 half mara, back in June which, was a poorly paced (left alot in the tank) 1:46. This was 8:08 per mile which based on my fastest time of the year, a 5 miler, is exactly what my mara pace should be according to JD. Entering my half mara time on JD it works out at a 8:27 mara pace. I can't work wether half a years progression would make that (8:08) a reasonable pace now or wether that is a tad ambitious. Tomorrow's mara pace run might answer that one.

NP- That is impressive that the BT results pretty much gave you the paces you already were doing. Knowing yourself by feel has to be the key factor in all this?

Go Caz wrote (see)

 How does the Jack Daniels formula work? 

It's just a running calculator. You put in a race result it churns out pace range for easy runs, and specific pace for marathon, threshold, intervals etc. I've tried a few in the past but the Jack Daniels one seemed to come up with some realistic figures given on the perceived efforts when I double checked them with previous runs. 

It just seemed a good guideline until I get things sorted with the HRM.

Night Nurse wrote (see)

(I suppose you will now tell me you run a sub 3 marathon ..in which case I will shut up.)

 

I wish  I'm a marathon noob. I've only been running 15 months, purely for fun but last year I managed to crack off close to 2000 miles to fuel my new addiction. So I was getting out there a bit. Towards the back end of the year I started changing paces, doing some races etc and using the HRM but even in my LSRs I seemed to be averaging 85% or higher. And thats at about two and a half to three mins per mile slower than my 5 mile race pace. I still have a fair bit of weight to lose, which I presumed may be a factor,  and am 40 but it was frustrating/paranoia inducing to look at the HRM and think I either needed to walk or my heart was going to explode!  So i've taken it off to stop me looking at it all the time!

Hello lovely people, longtime lurker here who embarked on the 18 week Up to 55mpw plan last week. Probably aiming at MK marathon, possibly just trying to structure my running after a year of just pounding out miles.

Anyway this really is a great thread, lots of cracking advice. Week one kind of fell apart for me under a heavy cold after the first days run, 8m with 4 at LT. After a week off i've been back with a topsy turvey version of week 2.  4  easy on Weds as it was my first run back, 10 GA yesterday and 8 with 10x100 strides today. Well I actually only managed 8x100 as I was blowing a little, probably because on the plan these two were not meant to be back-to-back. Having a rest tomorrow and then the scary prospect of 13 with 8 at mara pace on Sunday. 

I'm not running with my HRM as the figures just seemed off the charts high. My perceived efforts for easy runs were still rating super high on my HRM even though they were super slow. And they felt easy. In a month or so I may try again to see if their is a change with my fitness but at the moment i'm using Jack Daniels formula to work out the differing paces for runs. They seem pretty accurate so far. Is anyone else using this instead of HR?

Thanks again for all the advice of taken from all of you guys and girls!