Over the course of his career,
Jack O'Brien
made 1,349 plate appearances.
O'Brien
was worth
-0.5 Wins Above Replacement
and -5.5 Wins Above Average.
After adjusting for length of schedule, catchers, and relief pitchers, the -0.5 WAR becomes
-0.7 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 0.0 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA.
This gives O'Brien -0.7 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).
Jack O'Brien has a Hall Rating of
-1,
leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the
About page.