Who cares about win percentage? Expected win percentage is all that matters.
Over the last 270 NHL plays I'm a 45.93% player, won 124, lost 146. Means nothing when my average odds were +141, because that takes my expected win percentage to 55.77%.
(not directed at you, but loads of guys claim happily they are winning 60% of their plays, yet are in the red, because their average odds were -180)