I can understand your reasoning. You're averaging k/d ratios instead of your actual kills and deaths. Working it out using a k/d ratio gives a false understanding because you could have 100/50 or 2/1. Example: You play 2 games. Game 1: 5/1 Game 2: 1000/1000 Game one has a 5 k/d. Game 2 has a 1 k/d. The average of the k/d ratio is a 3 k/d whereas the average kills over deaths are about a 1.005 (i think 1005/1000). I'm using this example to make it easier for you to understand and if you can understand this, apply it to an actual game.