One very interesting exercise was to compare a player’s projection with his actual career, at first to see if the model was good enough, then to dig into the details.
And something jumped to our eyes. Age is a HUGE factor, as a proxy for how mature a player is. This sounds obvious, but numbers are maybe bigger than what we thought.
At 16 years old, your current performance determines 56% of your future career.
At 17 years old, it goes up to 65%.
At 18 years old, it goes up to 70%.
At 19 years old, it goes up to 76%.
At 22 years old, where our model stops considering you as a prospect, your current performance explains 83% of your future career. What you see is what you’ll get.