|About the stats|
Over the course of his career, John Clapp made 2,635 plate appearances. Clapp was worth 19.0 Wins Above Replacement and 10.0 Wins Above Average.
After adjusting for length of schedule, catchers, and relief pitchers, the 19.0 WAR becomes 38.4 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 10.0 WAA becomes 12.3 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Clapp 60.5 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).
John Clapp has a Hall Rating of 57, leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the About page.