Playing in a MP game and it shows both of us 1st in science.  I am dominating in every field in research.  Research per turn, stages unlocked, and technology unlocked.  I am not sure how it puts us both in first.  Is it because that rating is solely based off the fact neither of us have started researching the final techs needed for a science victory ?  Or is it just bugged out?  Some of the other ones as well are confusing because it shows us both as 1st. 

I believe it's calculated based on whos got the tech needed for a science victory, like the wonder deeds for example(it puts everyone randomly on board, though.  when no one is building it.)