This is coming from someone who has climbed solo from iron to immortal. As I was exploring this community, I discovered that there is a very common sentiment among players that "you don't have to get kills to have impact." From a high elo...

So a random observation, but the last round combat score is not calculated. It doesn't affect the average score, so average is total score/total rounds - 1. This is not great if you pop off last round, and scores do tend to be higher later...