This post (and many other posts) is long overdue. This are these long distance relay races called "Ragnars" and this past May, there was one happening from Hull, Massachusetts to Cape Cod. This being a race and also being 200-ish miles long meant that our relay team of 12 runners would be mobile for nearly 24 hours. Our team was a combination of astronomers, members of my running club, and a whole bunch of Ragnar relay veterans, who came up with the team name "Sweaty Lunatics" (this event actually encourages this sort of eccentric attitude--our team name was relatively tame compared to some of the other ones...)
Fortunately, we were split into two vans, which allowed us to drive ahead to the hand-off points along the course and get (some) sleep as the other half of the team ran to catch up. I personally got to run at night in a dark forest (that was my favorite, actually), then the next morning along a rail trail, and then the last leg of the relay along the Cape. That last section was rainy, but it was a lot of fun in spite of that.
One quick note on the Boston Marathon: I had a foot injury in March that didn't entirely prevent me from running, but was bad enough that I opted out of jogging through the marathon this year. I would rather not be out of running for the rest of the year and not be able to compete in the race. My foot was feeling all better by May and now I'm working on getting fit for my next marathon.