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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
412
H
98
HR
21
AVG
.290
xwOBA
.402
PPG
2.84
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
202653233.254.377.425.171.38321.9%15.0%6.9%7151372.58—
202596412.290
2025 MLB Percentiles

Hitting Profile

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

Expected Results
xwOBA
96
.402
xBA
53
.257
.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—
xSLG
91
.525
Quality of Contact
Avg EV
90
92.7
Median EV
93
96.2
90th % EV
95
109.8
Barrel %
88
15.7
Hard-Hit %
92
52.5
Sweet-Spot %
12
32.2
Bat Speed
Avg
93
74.1
Median
95
76.0
90th %
93
80.8
Plate Discipline
Chase %
77
23.2
Whiff %
20
27.2
K %
26
24.8
BB %
99
17.2
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+
114
≈ 92th pctl
Chase cost
-24.5r
257 swings @ bad pitch
Passive cost
-10.7r
198 takes @ hittable pitch
Swing rate
46.2%
1,741 pitches seen
Runs per 100
-2.02
lg avg -2.53
Count
View
212+0%841+0%7+30%20+25%28+28%18+16%25+7%155+56%18+36%28-12%48-12%65-25%51+11%37+0%17+52%21+31%39-11%54-17%63-38%45+16%45+0%13+13%16+35%37+18%40+15%34-6%18+12%17+0%6+10%10+15%13+7%14+0%6+0%632CATCHER'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