Stepan Jeffersonov O27 Index

Wellington Baseball Club · percentile rankings vs the league
Player page JSON
Advanced · win value, fielding, second chances
WPA (pit)
-0.41
Leverage
0.94
WP is split by batting half; OAA uses exact fielder credit on outs.
wOBA Against
0.231
xwOBA Against
0.255
Luck (wOBA − xwOBA)
-0.024
Negative = suppressed contact better than his EV/LA profile predicts (good for a pitcher); positive = got hit harder than the balls deserved.

Pitching

vs 639 qualified · 22 balls allowed
xwOBA Against
97
0.255
Avg EV Against
80
85.0
Hard-Hit %
77
13.6%
Barrel %
73
4.5%
Strikeout %
94
29.3%
Walk %
72
7.3%
HR %
87
0.0%
Red = elite, blue = poor. Hitting bars rank batted-ball quality; pitching bars rank contact suppressed (so a low EV-against or Barrel% is elite). Cuts are calibrated to O27's exit-velocity distribution, not MLB's.
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