|About the stats|
Over the course of his career, Jon Matlack pitched 2,363 innings and made 541 plate appearances. Matlack was worth 39.3 Wins Above Replacement (38.9 as a pitcher and 0.5 as a hitter) and 19.3 Wins Above Average (18.8 as a pitcher and 0.5 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 39.3 WAR becomes 39.5 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 19.3 WAA becomes 22.2 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Matlack 79.5 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).
Jon Matlack has a Hall Rating of 74, leaving him short of induction to the Hall of Stats.
Want even more detail about the formula? See the About page.