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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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Position cohort

Hitting value vs. OF peers

Rank #6 of 234

Each bar is one OF, ordered left-to-right by Value (blended). Center dot is VORP; whiskers span V⁻ → V⁺. This player is highlighted in blue.

-500+50+100+150+200Ronald Acuña Jr.
Ronald Acuña Jr. · #6
V⁻ 63VORP 91V⁺ 127
Ronald Acuña Jr.

Ronald Acuña Jr.

OF·ATL
Compare
Compare
PA
233
H
49
HR
7
AVG
.254
xwOBA
.383
PPG
2.58
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
Proj94405.277.385.486.209.38620.7%14.0%6.7%17182712.88—
202653233.254
2026 MLB Percentiles

Hitting Profile

Expected Results
xwOBA
87
.383
xBA
47
.255
xSLG
.377
.425
.171
.383
21.9%
15.0%
6.9%
7
15
137
2.58
—
202596412.290.417.518.228.40224.8%17.2%7.6%2192732.84—
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—
81
.493
Quality of Contact
Avg EV
55
90.1
Median EV
50
92.5
90th % EV
58
105.9
Barrel %
78
13.2
Hard-Hit %
54
43.8
Sweet-Spot %
33
34.0
Bat Speed
Avg
83
73.3
Median
88
75.3
90th %
89
80.2
Plate Discipline
Chase %
78
25.0
Whiff %
28
25.6
K %
38
21.9
BB %
91
15.0
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+
107
≈ 76th pctl
Chase cost
-7.1r
61 swings @ bad pitch
Passive cost
-1.9r
39 takes @ hittable pitch
Swing rate
47.9%
399 pitches seen
Runs per 100
-2.24
lg avg -2.53
Count
View
224415+14%7+23%13+40%10+23%13+10%104+50%6+12%17+0%19-16%25-27%22+38%8+0%8+44%9-10%10-18%28-12%32-37%16+36%1455+33%15+38%13-14%7+0%6+17%62244221CATCHER'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: 399