Flanker the ClankerFlanker
Rankings
Leaderboards
  • 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
StreamersSign inConnect league →
Mark Vientos

Mark Vientos

1B / 3B·NYM
Compare
Compare
PA
455
H
110
HR
27
AVG
.266
xwOBA
.333
PPG
2.32
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
202657204.211.246.366.155.31122.5%3.4%19.1%70791.39—
2025125463.233
2024 MLB Percentiles

Hitting Profile

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

Expected Results
xwOBA
48
.333
xBA
42
.246
.292
.413
.180
.320
24.8%
6.5%
18.3%
17
1
204
1.63
—
2024126455.266.324.514.248.33329.7%7.3%22.4%2702922.32—
202368233.211.255.367.156.30930.5%4.3%26.2%91650.96—
20221741.167.268.278.111.28329.3%12.2%17.1%10100.59—
xSLG
78
.475
Quality of Contact
Avg EV
76
91.2
Median EV
76
94.0
90th % EV
73
106.8
Barrel %
90
14.1
Hard-Hit %
72
46.6
Sweet-Spot %
51
35.7
Bat Speed
Avg
52
70.3
Median
48
71.4
90th %
44
76.3
Plate Discipline
Chase %
21
32.3
Whiff %
3
32.0
K %
3
29.7
BB %
34
7.3
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+
91
≈ 19th pctl
Chase cost
-34.6r
365 swings @ bad pitch
Passive cost
-15.6r
248 takes @ hittable pitch
Swing rate
50.0%
1,787 pitches seen
Runs per 100
-2.81
lg avg -2.53
Count
View
234+43%7+20%1021+29%7-14%7+34%29+17%24+63%16+57%74+35%17+8%36-31%52-32%63-20%46+59%22+67%12+29%28+2%50-44%61-22%59-24%50+38%215+37%30+43%40+24%45+13%38+31%26+17%124+15%13+14%28+27%15+13%8431CATCHER'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