LOL you know nothing about pool.
And Yes to the question you asked at the beginning of that paragraph. Yes at the highest level of sport performance, luck is the most deciding factor. I know its sad but it is true and probably most people who love this game so much will never see it. The break & layout & rolls & situations that happens in each rack decides the winner. All players at that level can runout they just need everything to go their way. And this is exactly why you see a pro v pro where one beats the other 9 to zero, then they go to the loser bracket play each other again and the guy who was ZERO will win the next game 9 to zero again, it happens a lot and if you have just a slight of logical and critical thinking you'd see that these two pro's did not develop a new set of a skill all of a sudden, its all happened in the same tournament! What made one pro beat the other 9 to zero, then in the same day the other dude beats the other guy 9 to zero? Its all about the layouts, breaks, rolls.
Alot of incidents of this sort happen in pool, to name one Johnny archer beats Bustamante in a gambling match, he ran 13 racks on him and beat him 13 to zero. Guess what happened next? Bustamante said to Johnny lets play again double or nothing, guess who won the next one, Bustamante beat Johnny...apparently first set was cake-easy layouts for johnny and he kept making balls on break AAAAAAAND getting a shot after the break. Apparently, that did NOT happen the next set and he kept getting hooked whenever Bustamante misses. Dude its all about luck but you need probably 50 yrs to realize this fact. I saw it in just a few yrs, it's all clear to me.
You want more? Alex was playing crazy one tournament, even the commentators said he is a COMPUTER and not a man. He won that match, everything laid perfect for him to win it. Next SET he played an unknown and he kept getting out of position due to layout issues (8ball tournament). The unknown beaten alex next set.
One more, Shane Van boening was playing real good last world championships, he ran 7 racks in a row in two SETS. The 3rd sET against a player who isn't a caliber of him but he's still a pro. The other guy got every roll and every layout. The layout is huge in the game of pool if its easy even ur grandson can run out. Then what happens, Shane who ran 7 racks in a row two different sets has lost to a player who isn't as good as him. Its not suddenly SVB lost skill, right? its just the table decided that he has to lose this time.