[Tobra]

I did not say it does not effect what you do, I said it does not effect your performance. Whether it is a tennis ball or a baseball. You are confusing final score with ability(performance)

If they are simply better than you are, in better condition for example so their performance is less adversely impacted by fatigue, can put the ball someplace you are not quick enough to hit it. They have greater ability and perform at a higher level. This has little or nothing to do with their opponent's ability to perform at whatever skill level they happen to have.

Your score is a reflection of your performance(ability), not the other way around