|About the stats|
Over the course of his career, Bud Hafey made 398 plate appearances and pitched 1 innings. Hafey was worth -1.1 Wins Above Replacement (-0.9 as a hitter and -0.2 as a pitcher) and -2.5 Wins Above Average (-2.2 as a hitter and -0.4 as a pitcher).
After adjusting for length of schedule, catchers, and relief pitchers, the -1.1 WAR becomes -1.1 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 -2.5 WAA becomes 0.0 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Hafey -1.1 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).
Bud Hafey has a Hall Rating of -1, leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the About page.