|About the stats|
Over the course of his career, Frank Thomas made 10,075 plate appearances. Thomas was worth 73.9 Wins Above Replacement and 39.1 Wins Above Average.
After adjusting for length of schedule, catchers, and relief pitchers, the 73.9 WAR becomes 75.5 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 39.1 WAA becomes 40.7 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Thomas 148.8 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 Thomas has a Hall Rating of 139, making him a member of the Hall of Stats.
Want even more detail about the formula? See the About page.