|About the stats|
Over the course of his career, Kenny Rogers pitched 3,302 innings and made 75 plate appearances. Rogers was worth 50.5 Wins Above Replacement (50.5 as a pitcher and -0.1 as a hitter) and 19.4 Wins Above Average (19.5 as a pitcher and -0.1 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 50.5 WAR becomes 52.9 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 19.4 WAA becomes 26.5 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Rogers 100.6 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).
Kenny Rogers has a Hall Rating of 95, making him close to the Hall of Stats borderline—but still on the outside.
Want even more detail about the formula? See the About page.