So...after discussion on here with Dr Dan regarding my possibly underestimating my HRMax (because my paces are much slower than they should be for my marathon finishing times), I've adjusted my HRMax from 172 to178 and just done the Hadd test at the track this morning.
HR average 131 (73.5%) - Pace 11.05 - Beats per mile 1441
HR average 140 (78.5%) - Pace 9.33 - Beats per mile 1330
HR average 151 - (85%) - Pace 8.26 - Beats per mile 1283
HR average 162 (91%) - Pace 7.29 - Beats per mile 1214
Not quite bang on with the HR averages but close.
Now, whilst I might still be gestimating my HRMax still, what I do know for sure is 1. My most recent 10k pace was 7.24 and 2. my last 3 marathon were run at between 8.11 and 8.27.
On these current figures, it suggests that right now, at the start of marathon training, my marathon pace (151/178) is almost MHR85% and my 10k pace (162/178) is MHR91%
Do these figures look about right, or does it suggest perhaps I need to guestimate my HRM up a bit more?
Also, do the 'beats per mile' suggest I'm more efficient the closer to HRM I get?