|About the stats|
Over the course of his career, Buster Posey made 5,607 plate appearances. Posey was worth 45.0 Wins Above Replacement and 27.0 Wins Above Average.
After adjusting for length of schedule, catchers, and relief pitchers, the 45.0 WAR becomes 51.7 adjWAR. Then, WAA is adjusted by ignoring negative seasons (thus, truly capturing a player’s peak seasons) and making similar adjustments for catchers and relief pitchers. After these adjustments, the 27.0 WAA becomes 32.3 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Posey 109.8 wWAR. wWAR is then converted to Hall Rating. A Hall Rating of 100 represents the Hall of Stats borderline (similar to OPS+ or wRC+, where 100 represents league average).
Buster Posey has a Hall Rating of 103, meaning he will be in the Hall of Stats when eligible—but very close to the borderline.
Want even more detail about the formula? See the About page.