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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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Ronald Acuña Jr.

Ronald Acuña Jr.

OF·ATL
Compare
Compare
PA
735
H
217
HR
41
AVG
.337
xwOBA
.463
PPG
4.34
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
202653233.254.377.425.171.38321.9%15.0%6.9%7151372.58—
202596412.290
2023 MLB Percentiles

Hitting Profile

Expected Results
xwOBA
99
.463
xBA
99
.350
xSLG
.417
.518
.228
.402
24.8%
17.2%
7.6%
21
9
273
2.84
—
202454222.250.351.365.115.35123.9%12.2%11.7%4161272.35—
2023170735.337.418.596.259.46311.4%10.9%0.5%41757384.34—
2022124533.266.353.413.147.37223.6%9.9%13.7%15292872.31—
202189360.283.400.596.313.43323.6%13.6%10.0%24183053.43—
202060202.250.406.581.331.42929.7%18.8%10.9%14111853.08—
2019168717.279.365.516.237.39626.2%10.6%15.6%41385183.08—
2018116487.293.368.552.259.37925.3%9.2%16.1%26163332.87—
99
.666
Quality of Contact
Avg EV
99
94.7
Median EV
99
97.1
90th % EV
99
111.0
Barrel %
91
15.3
Hard-Hit %
97
55.2
Sweet-Spot %
40
35.2
Bat Speed
Avg
96
74.8
Median
99
77.3
90th %
99
82.5
Plate Discipline
Chase %
84
22.7
Whiff %
79
17.0
K %
95
11.4
BB %
78
10.9
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+
110
≈ 84th pctl
Chase cost
-45.5r
440 swings @ bad pitch
Passive cost
-16.4r
327 takes @ hittable pitch
Swing rate
46.3%
2,842 pitches seen
Runs per 100
-2.18
lg avg -2.54
Count
View
3+0%9+8%12+0%8+0%735+43%14+17%29+35%34+31%26+19%21+0%10+56%18+7%28-11%53-13%60-9%45+25%16+0%18+44%25+25%53-19%67-28%57-23%47+31%16+0%12+47%19+41%39+9%35+7%28-6%185+0%7+0%14+14%14+20%15+13%8+0%75CATCHER'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