|About the stats|
Over the course of his career, Jim Willoughby pitched 550 innings and made 79 plate appearances. Willoughby was worth 3.9 Wins Above Replacement (4.0 as a pitcher and 0.0 as a hitter) and -1.0 Wins Above Average (-0.9 as a pitcher and 0.0 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 3.9 WAR becomes 4.4 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 -1.0 WAA becomes 2.9 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Willoughby 9.6 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).
Jim Willoughby has a Hall Rating of 9, leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the About page.