|About the stats|
Over the course of his career, Justin Masterson pitched 1,201 innings and made 36 plate appearances. Masterson was worth 10.1 Wins Above Replacement (10.0 as a pitcher and 0.1 as a hitter) and -1.1 Wins Above Average (-1.2 as a pitcher and 0.1 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 10.1 WAR becomes 10.7 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 -1.1 WAA becomes 5.9 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Masterson 21.3 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).
Justin Masterson has a Hall Rating of 20, leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the About page.