Performance in sport is dominated by statistics & chess is no exception
Discussion on the internet:
“How big is the gap between a 1300 and 1900 player in chess ? Are they comparable ?”
They are comparable only in the sense that a child’s tricycle is in some ways like an adult-size 10-speed bicycle. A 1300-player generally has very limited tactical awareness and calculating ability, only rudimentary knowledge of opening theory and middle-game strategy, and little to no endgame technique. A 1900-player, in contrast, will be well above average in most if not all of these areas. An Elo rating gap of 600 points works out to a probable 97% winning chance for the higher-rated player.
👍 A sample ChessWorld game with annotations