Due to the different opportunities presented to Black and Latino players before integration, the Hall Rating of these players does not accurately reflect their Hall of Fame cases. When possible, the Hall of Stats uses Eric Chalek’s Negro League MLEs to present an alternate Hall Rating for prominent early Black and Latino stars. Bill Foster has a 76 Hall Rating using these MLEs. The rest of the stats on this page come from real game data, not MLEs.
|About the stats|
Over the course of his career, Bill Foster pitched 1,499 innings and made 644 plate appearances. Foster was worth 47.1 Wins Above Replacement (45.6 as a pitcher and 1.5 as a hitter) and 34.5 Wins Above Average (33.4 as a pitcher and 1.3 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 47.1 WAR becomes 51.1 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 34.5 WAA becomes 34.6 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Foster 113.4 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).
Bill Foster has a Hall Rating of 107, making him a member of the Hall of Stats—but one who sits very close to the borderline.
Want even more detail about the formula? See the About page.