The quote 'You lose 100% of the matches you don't play' can vary with different sports they relate it to. (ie. You miss 100% of the shots you don't make {basketball}) Basically, it says if you don't do anything to get ahead of the game, you'll never get a point! You have to get out there and do your best! Not sit on the bench and watch! Play!
參考: By staring at the many posters in the nurse's office that said the exact same thing for a whole period because they wouldn't give me a stupid er for my stomach ache!