Hall of Stats

So far in his career, Jon Lester has pitched 2,740 innings and made 423 plate appearances. Lester has been worth 43.6 Wins Above Replacement (43.5 as a pitcher and -0.1 as a hitter) and 19.0 Wins Above Average (19.2 as a pitcher and -0.1 as a hitter).

After adjusting for length of schedule, catchers, and relief pitchers, the 43.6 WAR becomes 43.2 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 19.0 WAA becomes 24.8 adjWAA.

Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Lester 87.8 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).

Jon Lester has a Hall Rating of 83, 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.