|About the stats|
Over the course of his career, John McGraw made 4,946 plate appearances. McGraw was worth 45.9 Wins Above Replacement and 29.2 Wins Above Average.
After adjusting for length of schedule, catchers, and relief pitchers, the 45.9 WAR becomes 49.4 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 29.2 WAA becomes 30.0 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives McGraw 103.4 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 McGraw has a Hall Rating of 97, 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.