Consider this hypothetical situation: A game in which for evenly matched players, in a match of 1000 games, 9 are wins for white, 1 is a win for black, and 990

Consider this hypothetical situation: A game in which for evenly matched players, in a match of 1000 games, 9 are wins for white, 1 is a win for black, and 990 are draws. Would it really be reasonable there to say that W has a massive 90% advantage? I don't think so - in that situation white only has a tiny average advantage per game, so that winning such a match would mostly depend on real skill differences.