|About the stats|
Over the course of his career, Gaylord Perry pitched 5,350 innings and made 1,220 plate appearances. Perry was worth 90.3 Wins Above Replacement (93.0 as a pitcher and -3.0 as a hitter) and 41.9 Wins Above Average (44.9 as a pitcher and -3.0 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 90.3 WAR becomes 91.9 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 41.9 WAA becomes 50.7 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Perry 183.2 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).
Gaylord Perry has a Hall Rating of 172, making him a member of the Hall of Stats.
Want even more detail about the formula? See the About page.