Been thinking about this for awhile, seems appropriate to post now with the 100 mile record just being broken...
Back in 2013, we did this thing at work called the "Global Corporate Challenge" - the idea of it is to encourage fitness (think 10,000 steps per day). It lasted 16 weeks from late May to early September and participants were given a pedometer that would count their steps everyday. You could also cycle or swim and there was some kind of conversion to factor those into steps. We had about 30 teams of seven members each and there were about 30,000 teams globally and you could see how you were doing versus other teams online.
Anyway, the most number of steps I did was 112,213 (got up at 5:30 AM, walked from just south of Central Park, generally down Broadway, over the Manhattan Bridge into Brooklyn, spent the next 12 hours walking all over Brooklyn and then back over the Brooklyn Bridge toward home). That was equivalent to about 59 miles (I got home at 11:35 PM).
This was all walking as I wasn't running at all that year.
I have it in the back of my mind to see if I could run/walk 100 miles in 24 hours - I'd definitely start right at midnight if I tried to do this. That would be very tough to do but I think possible.
How does this sound for a plan? Run the first 20 miles, then alternate walking and running (one mile at a time) for the next 30 miles and then walk the last 50 miles. So, that would be 35 miles running and 65 miles walking.
This is something I might try to do when I'm 60 (I'm almost 57 now).
Discus.