Over the course of his career,
Bert Blyleven
pitched 4,970 innings
and made 514 plate appearances.
Blyleven was worth 89.3 Wins Above Replacement
(90.7 as a pitcher and -1.4 as a hitter)
and 51.0 Wins Above Average
(52.4 as a pitcher and -1.5 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 89.3 WAR becomes
92.1 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 51.0 WAA becomes 58.0 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA.
This gives Blyleven 190.2 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).
Bert Blyleven 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.
