We’ve added a PK ladder for fun. Obviously there’s no perfect way to rate PK performance. Is fleeing a valid tactic? Does a victory 10 vs 1 actually reflect skill?

The rating is calculated using the Elo system, so the difference between two players’ rating reflects the probability of each player winning. If two players are rated +0, it should be 50/50. If someone is rated +240, they should have an 80% chance of winning.

I’ve excluded all PKs where the players were of different class (hero vs archon, 2nd vs 3rd class, etc), and where the level difference is greater than 20 (not including archon levels).

Suggestions for improvements (other than doctoring the results) are welcome.

Perhaps there should be a skew on +/- for formation fights.