|About the stats|
Over the course of his career, Charlie Robertson pitched 1,005 innings and made 375 plate appearances. Robertson was worth 6.4 Wins Above Replacement (6.2 as a pitcher and 0.2 as a hitter) and -2.7 Wins Above Average (-3.0 as a pitcher and 0.2 as a hitter).
After adjusting for length of schedule, catchers, and relief pitchers, the 6.4 WAR becomes 6.5 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 -2.7 WAA becomes 2.6 adjWAA.
Then, the adjWAR and adjWAA are combined, but with extra weighting given to adjWAA. This gives Robertson 11.2 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).
Charlie Robertson has a Hall Rating of 11, leaving him nowhere close to induction to the Hall of Stats.
Want even more detail about the formula? See the About page.