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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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Geraldo Perdomo

Geraldo Perdomo

SS·ARI
Compare
Compare
PA
495
H
100
HR
6
AVG
.246
xwOBA
.278
PPG
1.87
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
202663258.237.341.349.112.32612.0%12.8%-0.8%381412.24—
2025165723.288
2023 MLB Percentiles

Hitting Profile

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

Expected Results
xwOBA
0
.278
xBA
0
.203
.393
.460
.172
.360
11.5%
13.0%
-1.5%
20
28
531
3.22
—
2024101388.273.348.374.101.28814.9%9.3%5.6%392172.15—
2023163495.246.356.359.113.27817.4%12.9%4.5%6213051.87—
2022155501.194.285.262.068.27520.6%10.0%10.6%591911.23—
20211137.258.378.419.161.30316.2%16.2%0.0%00191.73—
xSLG
0
.276
Quality of Contact
Avg EV
0
81.9
Median EV
2
87.3
90th % EV
1
98.2
Barrel %
0
0.9
Hard-Hit %
1
19.5
Sweet-Spot %
47
35.7
Bat Speed
Avg
2
63.0
Median
3
65.0
90th %
3
69.8
Plate Discipline
Chase %
98
16.6
Whiff %
92
13.9
K %
70
17.4
BB %
90
12.9
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+
113
≈ 90th pctl
Chase cost
-23.8r
246 swings @ bad pitch
Passive cost
-24.3r
440 takes @ hittable pitch
Swing rate
38.0%
2,335 pitches seen
Runs per 100
-2.06
lg avg -2.54
Count
View
2+17%6+10%10+0%1433+23%13+35%20+12%51-15%34+17%41+8%12+0%12+30%23-18%44-57%69-36%85-37%64+19%32+0%11+36%33-10%48-60%40-22%55-20%41+17%12+15%13+21%19+24%21-10%20+7%14+8%12+25%844+0%643532CATCHER'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