|About the stats|
Over the course of his career, Ed Walsh pitched 2,960 innings and made 1,166 plate appearances. Walsh was worth 65.9 Wins Above Replacement (63.8 as a pitcher and 2.1 as a hitter) and 38.8 Wins Above Average (36.8 as a pitcher and 2.0 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 65.9 WAR becomes 69.0 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 38.8 WAA becomes 41.1 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Walsh 143.0 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).
Ed Walsh has a Hall Rating of 134, making him a member of the Hall of Stats.
Want even more detail about the formula? See the About page.