|About the stats|
Over the course of his career, Mark Leiter pitched 1,184 innings and made 225 plate appearances. Leiter was worth 3.3 Wins Above Replacement (3.8 as a pitcher and -0.6 as a hitter) and -6.7 Wins Above Average (-6.1 as a pitcher and -0.6 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 3.3 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 -6.7 WAA becomes 1.3 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Leiter 6.6 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).
Mark Leiter has a Hall Rating of 6, leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the About page.