Scoreboard Syndrome
When a player in a videogame uses their superior score in a certain match as the authority and a way to absolve themselves from criticism from other players.
I told John that he needed to work on his AK-47 spray in a CS:GO match, but he shrugged it off and told me that he was doing better and therefore I can't speak about his AK-47 spray. Carl and I knew this was a classic case of the scoreboard syndrome.