I did not get very far in my half marathon before I had to turn around and start again. I don't think you see too many real marathoners restarting.
I measured my leg and at the widest point I am 17 to 17 1/2 inches around. I cast on using 17 for corresponding number in the pattern even after it recommended using a number one to two inches less than your measured circumference.
Let me tell you that you do need that bit of negative ease to create a nice calf hugging stocking. This one fell down my leg which is not something I like in a stocking.
So I ripped back and am at about the same point again. I can tell you that I am loving the yarn and especially the color. But I am hoping this measurement works cause I don't want to restart another marathon till the other stocking is ready.