Re: Boston Marathon results?
Usually there should be an official site that will list results.
My daughter ran the Seattle Marathon last year, and they've gone pretty hi-tech, with chips in the laces of the shoes that charts progress along the route, as well as virtually instantaneously producing time and placement data on-line.
In Seattle's case, it was done by name rather than bib number. Boston is one of the premier events in the country, and I'm sure they are also as hi-tech as it gets.
BTW, it's kind of impressive to even run in the Boston race--you need to qualify for it by running a specific time or better in a sanctioned race. She informed me her goal next year is to qualify for and run in Boston. I believe the number is posting a 4 hour or better time in a sanctioned marathon.