It is well known that luck plays a major role in all the big competitions in Texas Hold'em. In a field of a thousand players, the best players usually have no more than a .2% or a .3% chance of winning at the very best. (Thus the best players win 2 or 3 times more often than the average players).
For heads-up play (a match between two players), the winrate of a winning player versus a substantially worse player is can be anywhere from 4 big blinds/100 hands to 20 big blinds/100 hands. The standard deviation is more like 140 big blinds/100 hands. This means that you have to play quite a while to have an almost zero chance of winning, even against a substantially worse player. Most professional poker players even have an occasional losing month (let's say one a year an average).
For heads-up play (a match between two players), the winrate of a winning player versus a substantially worse player is can be anywhere from 4 big blinds/100 hands to 20 big blinds/100 hands. The standard deviation is more like 140 big blinds/100 hands. This means that you have to play quite a while to have an almost zero chance of winning, even against a substantially worse player. Most professional poker players even have an occasional losing month (let's say one a year an average).