|About the stats|
So far in his career, Jeff Mathis has made 3,015 plate appearances and pitched 5 innings. Mathis has been worth 0.3 Wins Above Replacement (0.4 as a hitter and -0.2 as a pitcher) and -10.3 Wins Above Average (-9.9 as a hitter and -0.3 as a pitcher).
After adjusting for length of schedule, catchers, and relief pitchers, the 0.3 WAR becomes 0.7 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 -10.3 WAA becomes 0.3 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Mathis 1.2 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).
Jeff Mathis has a Hall Rating of 1, meaning he would not be in the Hall of Stats if his career ended today.
Want even more detail about the formula? See the About page.