Let's analyze the question, "what is winning?"
Winning can be anything and it's definition varies with each player/participant, like winning can be:
1-Reaching to the top of the ladder.
2-Making other players feel that they've lost the game. (Negativity)
3-Participating, without thinking about final result.
4-Testing his strategy, potential, limits and ability to perform in tough, tougher and the toughest situations.
5-Learning from the faults and loopholes in the strategy.
6-Going ahead in life.
If we observe all of these points, these all can be achieved "even" after helping other player to win (there's no word like losing, because one cannot win alone)
So everyone is a winner! :)