Thanks @ericjrw. You’re not too far off the mark… there were a few runners that took part in the race that ran in even smaller spaces than their backyards, and not on a treadmill: CBC Article feat. Matt Shepard. Check out both Matt Shepard (who happens to be my coach 
) and the “living room guy”… they ran for 41 and 20 hours, respectively (275 and 134km).
It is slow and steady progress on the city %… that’s for sure. I track the neighbourhoods I complete as well for more reasonably attainable milestones… there are 257 in the city so can knock them off much more quickly.
I see you’re running out of Keller. Looks like you’ll be able to make good progress there.