Over the course of his career,
Al Mattern
pitched 841 innings
and made 306 plate appearances.
Mattern
was worth
4.9 Wins Above Replacement
(5.9 as a pitcher and -1.0 as a hitter)
and -1.5 Wins Above Average
(-0.5 as a pitcher and -1.0 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 4.9 WAR becomes
5.2 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 -1.5 WAA becomes 1.1 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA.
This gives Mattern 7.3 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).
Al Mattern has a Hall Rating of
7,
leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the
About page.