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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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Yainer Diaz

Yainer Diaz

C·HOU
Compare
Compare
PA
621
H
175
HR
16
AVG
.298
xwOBA
.344
PPG
2.24
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
202625106.248.269.356.108.25715.1%2.8%12.3%20441.76—
2025146570.255
2024 MLB Percentiles

Hitting Profile

Expected Results
xwOBA
66
.344
xBA
94
.298
xSLG
.284
.415
.160
.329
16.7%
3.5%
13.2%
20
1
290
1.99
—
2024154621.298.328.440.142.34417.2%3.9%13.3%1623452.24—
2023118377.282.313.538.256.35819.6%2.9%16.7%2302602.20—
202249.125.222.250.125.27522.2%11.1%11.1%0020.50—
76
.472
Quality of Contact
Avg EV
60
90.2
Median EV
67
93.6
90th % EV
63
105.8
Barrel %
38
7.6
Hard-Hit %
77
47.5
Sweet-Spot %
48
35.6
Bat Speed
Avg
62
71.0
Median
57
72.0
90th %
58
77.0
Plate Discipline
Chase %
2
42.7
Whiff %
47
22.4
K %
71
17.2
BB %
3
3.9
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+
86
≈ 8th pctl
Chase cost
-55.9r
579 swings @ bad pitch
Passive cost
-8.2r
183 takes @ hittable pitch
Swing rate
58.5%
2,157 pitches seen
Runs per 100
-2.97
lg avg -2.53
Count
View
4+33%63+0%6+50%621+33%6+31%13+24%21+42%26+50%18+33%12+33%6+57%14+7%44-13%55-26%47+17%30+86%14+71%17+52%33+21%57-21%63-16%64+0%48+85%20+67%15+23%26+57%44+32%44+33%30+47%19+83%62+19%16+11%19+27%11+11%9433CATCHER'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