You are entering a 2v2 first person shooter tournament, first to 10 kills wins. You average 1 kill and 4 deaths per minute. You're choosing a team mate to enter the tournament with. Bob averages 1 kill and 0 deaths a minute. Fred averages 7 kills and 8 deaths a minute. Trying to maximize the probability of your team winning the tournament, who should you choose (and why)? So far, nobody has answered the question correctly. Obviously, many have guessed the correct answer but none have understand why it's correct. I created this problem entirely myself. It raises an important issue in game theory: is having a player with a higher K/D ratio and higher Kills minus Deaths always the better option? I posted this here in case anyone's interested in game theory.