If you're going to play, expect the unexpected. My 10-year-old daughter wins more often than would be allowed in a socialist paradise.
Losing well never goes out of style. Don't rob yourself or others of the joy of the adventure by losing control. Practice losing well.
Take the lead with humility. Going on to win is totally cool. When we play well through the highs and lows, and then end well, we win well. Fist bump, then clean up like a servant-leader.
Oh yeah, the same holds true after a show, a reading, a proposal, a meeting, etc.