|About the stats|
Over the course of his career, Duster Mails pitched 516 innings and made 195 plate appearances. Mails was worth 4.2 Wins Above Replacement (5.2 as a pitcher and -1.0 as a hitter) and -0.7 Wins Above Average (0.4 as a pitcher and -1.0 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 4.2 WAR becomes 4.3 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 -0.7 WAA becomes 2.4 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Mails 8.6 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).
Duster Mails has a Hall Rating of 8, leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the About page.