Murray won't be ranked first even if he ties his career-best results in most of the tournaments. Why? Cause at best he'll be even with Djokovic on hard courts (talking about ranking points here/results) but fall behind on clay.
Or let's give it a second look. Murray is currently at 8000 points, Djokovic at almost 13000 which is a 5.000 difference. How on earth is Murray going to make up so much ground?
Just shows you how pointless H2H's are. Nadal beat Fed but in the end it meant jack, they both walked away with nothing. It's about winning titles.