Personally, I'd say you're not running anywhere near enough miles (or km) in training to be able to maintain that sort of pace over a marathon.
I'd reckon 80km a week minimum would be needed.
Lots of people run sub 3 and quicker on less than 50 miles (80km) a week.
I would agree with you though that Andy's mileage looks a bit on the low side, particularly the lack of long runs since February. Racing HMs in marathon training is all very well, but they're no substitute for a proper long run (20+ miles).
It would need to be CW with the backpack and a sub 2:40 flag, that's normal running kit for him.
PP, it would be nice to have even been able to consider a parkrun age group course record, but at my local one a V45 track guy ran 16:16, a minute quicker than I've ever managed and almost 90s better than I've done as a V45. OTOH his marathon PB is pants, relatively speaking. Why isn't there a free, timed marathon every Saturday at 9am?
Usual taper niggles, nothing (probably) to worry about. Mile reps on weds were OK, no worse than a year ago. Not decided whether to take junior up to the expo after school (he's running in the mini marathon this year) or send the missus as usual.
Rich, normally I'd say if you haven't raced in compression socks before then sunday is not the time to try. OTOH, this isn't an all-out PB attempt so if you want to try them, give them a go. Some say they help in a long race, I've used them in ironman races but I couldn't say if they help too much - I've still had cramps now & again. Worst case you push them down if they're giving you problems on the day.
Loved this race when I did it, but Sunday 8am is unreasonably early. Would have entered if it was still on Saturday. Can only assume that this ludicrously early start (would mean a 4am alarm) has been forced upon you Dr Rob? Saturday afternoon really makes your weekend. Sunday crack of dawn somewhat ruins it.
I'm sure these "authorities" would prefer us to run at 3am then p!ss off so as not to disturb anyone at all, and sod the inconvenience. There really is no sport like running for not acting in the best interests of its participants.
I wouldn't disagree with that but since the Olympics the place just log-jams at weekends, to the point of being ridiculous. The zig-zag, car parks and cafe especially, but there's lots more people everywhere. I would think the change in start time is down to the NT, but even so, there's going to be lots of non-participants on lots of the route on a summer saturday afternoon.