N means what position you are in. 1st, 2nd, 3rd, 4th,... Nth

Rank is just events / minutes.

An event is a kill, flag capture, flag return and so on there is an explain ranking link on player profiles:
https://eatsleeput.com/utstats/?p=pexplrank&pid=23389&gid=9

MegaXor How is N calculated?

Each player gets ranking points calculated for them like is shown in the link Ooper posted for the player Vio.Scarz. Then, I presume, the list of all players are sorted high to low by their total ranking points so the player with the highest amount of points is listed as #1.

Currently, however, it is almost meaningless to pay attention to Ranking because there are numerous strong players with many aliases whose stats have not been combined yet. This skews the results a lot. So, above average and lower skilled players will have a much lower ranking than they actually deserve.

I will make a post to let everyone know whenever I get around to fixing this issue, along with a few other utstats issues, and re-importing all the stats.