|About the stats|
Over the course of his career, Willie Keeler made 9,619 plate appearances. Keeler was worth 54.1 Wins Above Replacement and 20.8 Wins Above Average.
After adjusting for length of schedule, catchers, and relief pitchers, the 54.1 WAR becomes 58.2 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 20.8 WAA becomes 26.1 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Keeler 105.2 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).
Willie Keeler has a Hall Rating of 99, making him close to the Hall of Stats borderline—but still on the outside.
Want even more detail about the formula? See the About page.