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  • Projections
    In-house Bayesian model · career prior + aging × stuff/discipline signals
  • Plate Discipline
    Decision+ · chase / passive cost · K% · BB%
  • Command & Stuff
    Pitching+ · Stuff+ · Command+ · meatball rate
  • Pitcher Stuff Lab
    In-zone whiff · xwOBAcon · tunnel · deception · count predictability
  • Stuff Model (diag)
    From-scratch XGBoost training runs, feature importance, pitcher grades
  • Expected Points
    Luck-neutral fantasy points · xSLG / xwOBA · ΔPts
  • Hitter Frontier
    Power × discipline tradeoff · Pareto-frontier hitters
  • Pitcher Frontier
    Process × contact-suppression · pound the zone vs limit damage
  • Hitter Vulnerabilities
    Biggest pitch-trait strengths & weaknesses · vs league or vs own
  • AAA Hitters
    Triple-A bats · xwOBA · contact quality · discipline · frontier
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Joey Loperfido

Joey Loperfido

OF·HOU
Compare
Compare
PA
262
H
52
HR
4
AVG
.214
xwOBA
.256
PPG
0.74
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
20262577.231.342.308.077.28328.6%13.0%15.6%01271.08—
202540104.333
2024 MLB Percentiles

Hitting Profile

262 PA — below qualified cutoff. Percentiles vs. qualified pool (faded).

Expected Results
xwOBA
0
.256
xBA
1
.203
.379
.500
.167
.316
26.0%
3.8%
22.2%
4
1
58
1.45
—
202481262.214.265.350.136.25636.3%5.0%31.3%44600.74—
xSLG
2
.314
Quality of Contact
Avg EV
17
87.6
Median EV
6
89.0
90th % EV
17
102.5
Barrel %
11
4.0
Hard-Hit %
13
34.7
Sweet-Spot %
92
40.7
Bat Speed
Avg
62
71.0
Median
64
72.4
90th %
60
77.2
Plate Discipline
Chase %
20
32.5
Whiff %
2
32.4
K %
0
36.3
BB %
6
5.0
Swing Decisions

Plate Discipline · Decision+

Expected-run-value of every swing-or-take decision, against a league-average batter’s optimum. 100 = avg · 110 = 1 SD better.

Decision+
93
≈ 24th pctl
Chase cost
-20.8r
214 swings @ bad pitch
Passive cost
-7.3r
114 takes @ hittable pitch
Swing rate
52.3%
1,020 pitches seen
Runs per 100
-2.75
lg avg -2.53
Count
View
2+0%7+17%6+0%10+13%832+15%13+11%18+11%28+24%34+18%39+7%14+0%10+38%16+17%47-31%59-23%69-13%45+25%36+7%14+41%29+16%51-21%47-21%61-10%42+77%30+27%11+58%12+50%14+37%30+58%19+39%23+64%11+0%735+17%6+13%8224CATCHER'S VIEW
Judgment — swing% vs optimal
−35%−15%0+15%+35%
  • Red cells — swings more than an optimal batter would here (chasing).
  • Blue cells — swings less than optimal (too passive).
  • Number in cell: swing%-delta vs optimal. Top-right: pitches seen.
Total pitches shown: 1,000