Just to say I managed 3:27 for the 25.2 miles (the point I entered the course).
I ran a mile afterwards in 10 minutes afterwards for a combined 3:37 London Marathon.
Yes I collected a medal which I will get mounted.
I have no regrets and believe I have done nothing nefarious.
My hand was forced; this year 1.1 million entrants.
Overall I enjoyed my first London experience, I did get abuse as I ran into the crowd, both from spectators and other runners which is fair, but it only lasted a few seconds
The bib I used was a rough forgery of a friend's, (I work in graphic design) covered by an old jacket discarded briefly once on the course