|About the stats|
Over the course of his career, Bob Welch pitched 3,092 innings and made 668 plate appearances. Welch was worth 43.7 Wins Above Replacement (43.4 as a pitcher and 0.3 as a hitter) and 16.1 Wins Above Average (15.8 as a pitcher and 0.2 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 43.7 WAR becomes 44.1 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 16.1 WAA becomes 21.6 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Welch 83.0 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).
Bob Welch has a Hall Rating of 78, leaving him short of induction to the Hall of Stats.
Want even more detail about the formula? See the About page.