|About the stats|
Over the course of his career, Frank Tanana pitched 4,188 innings and made 64 plate appearances. Tanana was worth 57.3 Wins Above Replacement (57.1 as a pitcher and 0.0 as a hitter) and 19.7 Wins Above Average (19.6 as a pitcher and 0.0 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 57.3 WAR becomes 58.0 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 19.7 WAA becomes 26.3 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Tanana 105.3 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).
Frank Tanana has a Hall Rating of 99, 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.