Once upon a time in a tournament far, far away (long before Tanner Pruess was born) I sent 3 players to losers bracket - back to back to back. All of them were ranked in the top 10 in the world at the time and I wasn't the odds on favorite to beat any of them - ever... but it happened.
In 1992, Tommy Kennedy (a touring pro for barely 3 months) virtually came from out of nowhere to beat Coker, Fusco, Bustamante, Rempe, Lebron, Hall, Archer, and Archer again to win the US Open 9 Ball Championships. Lightning strikes from out of nowhere and dynamite comes in small packages...
That's why they play the matches on the pool table, not on paper.
When you gather the best in the world, anything can happen on any given day - all it takes is a few good rolls and a great attitude from the right player at the right time under the right conditions. That's why I'm still at it. You never know what tomorrow brings.