|About the stats|
So far in his career, Kelvin Herrera has pitched 460 innings. Herrera has been worth 10.1 Wins Above Replacement and 5.5 Wins Above Average.
After adjusting for length of schedule, catchers, and relief pitchers, the 10.1 WAR becomes 12.1 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 5.5 WAA becomes 7.7 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Herrera 26.0 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).
Kelvin Herrera has a Hall Rating of 24, meaning he would not be in the Hall of Stats if his career ended today.
Want even more detail about the formula? See the About page.