Ive been doing 6 days per week Kaz and started to reduce that now as well as the weekly mileage, in terms of long runs one 21.5 mile Saturday, then 17 the following week (combined with parkrun) and week before just the parkrun (going for a PB). Last runs going to be 31/3 due to the travelling and disneyland which should rest my legs (normally only do a couple of slow 5ks in that week anyway)
So a target average pace of 8:23 could suddenly become 8:25 if you rely on your Garmin because you could end up running 26.32 instead of 26.22 (just by not following the blue line never mind the tunnels), worked in my favour in Manchester. By doing in 5ks also takes pressure off in first couple of miles. What a good idea. Just need those tattoos now and to converts mins into hours .... 26, 52, 1:18, 1:44, 2:10, 2:36, 3:02, 3:28, 3:39:59. Key will be building some contingency without burning out!
Kaz1 - not tapering just yet are you? One final week for me last few weeks I've gone from 62, 47 last week, 43 this week, 40 next
TD - really helpful advice. I have Garmin 610, in Manchester 2013 ran 26.13 and Chester 2013 26.32. I tend to rely on average pace, as well as current pace and mile split pace to keep on track. The current pace gives me a kick if I start to slow and I flex on the mile splits setting a max to keep to. I was thinking about a footpod for the tunnels but these and Garmin not 100% and the advice re times seems excellent especially easier to track on 5ks (only 8 of these to worry about)!!!
My realistic target is a marginal PB to beat 3:40:32. I figure if I can do each 5k in 26 mins this is easy to measure, 26, 52, 78, 104, 130, 156, 182, 208, plus 12 for last 2.2k = 220 (3:40). Naturally I'll slow in last 5k and want 3:39:xx so if I can build some contingency in the first 20 miles that will help, say 3 mins overall allowing up to 1 min per mile slower then it's achievable. My Garmin can then just ensure current pace / mile split on target. Sound like a plan?