I can see Ankit's point, but I reckon it's more like golf. You end up battling yourself. Do you feel more conscious of your game now that every stroke or delivery matters more than in the preceding games? Do you feel more pressurised knowing that your supporters expect more of you in this game than in the preceding ones? How do you handle those new factors? Do you choose to just tune them out and play as usual, or do you build on them and convert the increased self-awareness to your benefit? Perhaps you're so attuned to those variables that they don't even matter to you. Or maybe they do play on your mind, and the way you approach those challenges could end up either hampering or elevating your game. *cough*SA*cough*
Of course, all players are not the same, and there are way too many confounding factors. Ankit's point is a good one. You could be ****ting bricks internally, but the opposing player could be having a worse time of it, making your job relatively easier. What appears on the surface, and the outcomes we have in such situations might not necessarily be to the credit of the victor. But there's something to be said for the empirical data, and if there's a player who consistently comes out on top in situations which logically should be challenging to both parties, we've got to credit him for getting something right.