At the moment writing this I am sharing the same amount of reputation with somebody else in SO. We are last on user page 22 or first on page 23. I was looking for my position, and switching between the two, I sometimes only saw the other person both at the bottom of 22 and the top of 23. Doing it again later, I saw only myself. Seems the sort order or paging algorithm is buggy.
It took me an awful lot of flipping back and forth between those two pages to reproduce this, but I can at least confirm that this is true.
I would suspect that it should be: