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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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Andrew Vaughn

Andrew Vaughn

1B·MIL
Compare
Compare
PA
616
H
146
HR
21
AVG
.257
xwOBA
.318
PPG
2.07
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
20262897.360.412.551.191.34010.3%6.2%4.1%20782.79—
2025125447.254
2023 MLB Percentiles

Hitting Profile

Expected Results
xwOBA
22
.318
xBA
34
.247
xSLG
.311
.411
.157
.350
17.9%
6.9%
11.0%
14
0
250
2.00
—
2024153620.245.299.401.156.32021.3%6.1%15.2%1922721.78—
2023153616.257.314.429.172.31820.9%5.8%15.1%2103162.07—
2022141555.271.324.429.158.32217.3%5.6%11.7%1703082.18—
2021137469.235.313.396.161.33321.5%8.7%12.8%1512271.66—
41
.430
Quality of Contact
Avg EV
68
90.6
Median EV
72
93.8
90th % EV
59
105.9
Barrel %
44
8.4
Hard-Hit %
72
46.5
Sweet-Spot %
16
32.8
Bat Speed
Avg
23
68.7
Median
23
69.9
90th %
21
74.7
Plate Discipline
Chase %
26
31.7
Whiff %
48
22.0
K %
49
20.9
BB %
14
5.8
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+
96
≈ 35th pctl
Chase cost
-47.0r
452 swings @ bad pitch
Passive cost
-15.0r
326 takes @ hittable pitch
Swing rate
47.5%
2,317 pitches seen
Runs per 100
-2.68
lg avg -2.54
Count
View
34+33%6+50%64223+36%11+8%25+6%17+58%19+36%112+42%24-11%35-9%53-18%60-21%34+72%29+33%6+54%39-5%64-28%85-30%67-30%27+56%18+50%10+39%33+43%42+29%42+0%35+0%14+78%92+25%16+30%20+0%11+40%1021CATCHER'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