Hi Rosie - did the overall run end up at nearly 13 miles or 7 miles in total. ?
Just looking at how it was written it looked like a 7 mile run to me, but your post made me think you did nearer the 13 mark.
no problem either way, and only asking out of curiosity 
Well spotted Shaggy t. I wondered about this too! Knowing what a mileage freak you are, Rosie, I can't help suspecting you did 7 miles easy as a 'warm up' when the session was actually 7 miles in total. Come on, you can tell us!! Like I said, after the GWR, we'll have a chat about your mileage and pacing and perhaps make some adjustments.
Ha! Ok, confession time it is. (And I'm mildly concerned you guys can figure me out so well already), I did misread that as being a 7mile warm up, so did around 13 miles in total. I am willing to accept this may have been a [subconscious] deliberate misereading. Ooops! Well, it was fun anyway.. While I'm at this fessing up business I should admit to having done exactly the same for today too, so my 1M warm up was accidentally 4M today, instead of 4M total. I've had a word with my brain and this should not occur again
So, to Day 3, week 2, Wednesday. The plan was: 6M (55 mins) slow.
I did: 6M @ 9min mile pace. How slow should slow be? I find running slower than 9-9.15min/mile I get cold if running outside, (I am a wimp and seem to get cold easily) and it feels a bit weird. Probably didn't help that due to other committments I ran it at 0530, and it was dark and freezing, so brisk felt preferable to slow.
Today, week 2, day 4, Thursday. The plan was: 4M of 1M jog, then 2M (approx 15 mins) brisk, then 1M jog (try to do this on flat, even surface)
There are further confessions relating to the warm up today. On entering the park I overtook* the US cross country team who looked like they were off to scope out the course for Saturday, and instantly wanting to see the start area for the GWR which is just before the international cross country, my warm up was a 4M lap and a bit of Holyrood Park, so the course for Saturday plus a bit... I admit this is stretching the definition of flat and even 
. The jogging part I'm also struggling to get the hang of. I did this warm up at between 9-8min/mile pace, can that be described as jogging?
The 2M brisk then went a bit more to plan. I ran it on the flat area by the palace, according to garmin average pace for these was 6:58. Actually, is that too fast for brisk? ... I really need to practice pacing!, then 1M jog home (went over Salisbury crags through Hunter's Bog for this part, so, if you know the area, again pushing the definition of 'flat').
Hmm. I need to try harder at following instructions??
Tomorrow is NO RUNNING day. 
*this feat is not nearly as impressive as it sounds, they were walking at the time