Yep, implementation is fairly simple. I find the wikipedia article to be hard to follow so I'll give an example here to simplify it. Let's say the applications

Yep, implementation is fairly simple. I find the wikipedia article to be hard to follow so I'll give an example here to simplify it. Let's say the applications you want to compare have an elo of 1200 and 1600 respectively. Let's also use a kFactor of 20 (This determines how fast the elos will change based on a single comparison and can be modified to your liking). http://pastebin.com/65WGmuyN http://pastebin.com/65WGmuyN This example is for two applications fairly far apart in elo, if each application had an elo of 1200 then one would increase by 10 and the other would decrease by 10.