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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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Tony Kemp

Tony Kemp

2B·FA
Compare
Compare
PA
420
H
75
HR
5
AVG
.208
xwOBA
.299
PPG
1.69
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
2024510.000.100.000.000.19510.0%10.0%0.0%0010.20—
2023126420.208
2023 MLB Percentiles

Hitting Profile

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

Expected Results
xwOBA
7
.299
xBA
18
.238
.305
.303
.095
.299
9.5%
10.5%
-1.0%
5
16
213
1.69
—
2022157559.235.309.333.098.27412.3%8.1%4.2%7132941.87—
2021123398.278.386.417.139.32512.8%13.1%-0.3%882562.08—
202040114.247.369.301.054.32812.3%13.2%-0.9%03521.30—
2019112280.211.295.378.167.26016.8%8.2%8.6%841531.37—
2018105294.263.352.392.129.28615.0%10.9%4.1%6101861.77—
20171339.216.256.243.027.21512.8%2.6%10.2%01171.31—
201657136.217.299.325.108.25919.9%10.3%9.6%12581.02—
xSLG
1
.324
Quality of Contact
Avg EV
2
84.2
Median EV
14
89.8
90th % EV
0
97.2
Barrel %
1
1.2
Hard-Hit %
1
20.4
Sweet-Spot %
16
32.8
Bat Speed
Avg
2
62.8
Median
3
65.0
90th %
1
68.4
Plate Discipline
Chase %
82
23.0
Whiff %
97
12.5
K %
99
9.5
BB %
72
10.5
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+
120
≈ 98th pctl
Chase cost
-16.4r
209 swings @ bad pitch
Passive cost
-10.7r
220 takes @ hittable pitch
Swing rate
45.8%
1,491 pitches seen
Runs per 100
-1.81
lg avg -2.54
Count
View
43+21%19+0%10+8%13+0%83+27%11+23%30+22%50+35%40+30%33+6%17+0%9+27%15-8%65-34%71-24%85-11%38+17%234+47%30+10%42-30%73-33%69-14%22+13%83+30%10+33%21+21%28+4%24+0%11545151CATCHER'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