Easier to answer on here.
Saw a physio yesterday.
The thigh issue is actually a strained hamstring, as in strain, not tear. It’s improved progressively over the week, & the physio has given me some exercises. So we fly tmw am, and will take it from there!
Not ideal, but I’ve run boston before, & I have another bq in me. So I can’t complain, many hard training runners will never get a bq, or run Boston.
Btw, I should add that this is nothing to do with your plan. I should have got the ‘thigh strain’ diagnosed after lydd, and I handled the Dulwich 10 very poorly – a story for another day. So this latest challenge is solely on me, and it’s for me to deal with.
I will walk the Jamaica pond pr with my wife on sat, & if able start the mara on sun, running as my body feels. I’ll carry my mobile, which I never do, & if I have to drop out, my wife will pick me up. All being well, I’ll get around in under 5hrs, and reset for Venice. Obv, if I’m coping with 5 hr pace at half way, I’ll be trying for 4:30, and so on!