|About the stats|
Over the course of his career, Pedro Martinez pitched 2,827 innings and made 518 plate appearances. Martinez was worth 84.0 Wins Above Replacement (86.1 as a pitcher and -2.2 as a hitter) and 59.3 Wins Above Average (61.4 as a pitcher and -2.2 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 84.0 WAR becomes 86.1 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 59.3 WAA becomes 63.0 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Martinez 199.5 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).
Pedro Martinez has a Hall Rating of 188, making him not only a member of the Hall of Stats—but one of the very best players of all time.
Want even more detail about the formula? See the About page.