|About the stats|
Over the course of his career, Darby O'Brien made 3,128 plate appearances and pitched 1 innings. O'Brien was worth 13.4 Wins Above Replacement (13.3 as a hitter and 0.1 as a pitcher) and 4.7 Wins Above Average (4.7 as a hitter and 0.1 as a pitcher).
After adjusting for length of schedule, catchers, and relief pitchers, the 13.4 WAR becomes 14.6 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 4.7 WAA becomes 5.8 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives O'Brien 25.0 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).
Darby O'Brien has a Hall Rating of 23, leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the About page.