Wrong.
if you take a losing trade, you don't know who the opponent was. Maybe it was Medallion, or some other fund that makes huge profits? So maybe you took the opposite side of them? If you would know in advance it would be one of them you might not take the trade, but you don't know. So maybe you were on the 10% side without even knowing it.
How can you know if your opponent is a high % loser or a high % winner? Because you would prefer to trade against a loser I suppose, not against a winner.