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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. 3B peers

Rank #21 of 41

Each bar is one 3B, ordered left-to-right by Value (blended). Center dot is VORP; whiskers span V⁻ → V⁺. This player is highlighted in blue.

-500+50+100+150Mark Vientos
Mark Vientos · #21
V⁻ -37VORP -6V⁺ 16
Mark Vientos

Mark Vientos

1B / 3B·NYM
Compare
Compare
PA
202
H
41
HR
7
AVG
.214
xwOBA
.311
PPG
1.41
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
Proj66283.242.299.432.190.32325.1%6.9%18.2%1211342.03—
202656202.214
2026 MLB Percentiles

Hitting Profile

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

Expected Results
xwOBA
28
.311
xBA
30
.243
.249
.370
.156
.311
22.8%
3.5%
19.3%
7
0
79
1.41
—
2025125463.233.292.413.180.32024.8%6.5%18.3%1712041.63—
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
62
.455
Quality of Contact
Avg EV
55
90.1
Median EV
33
91.4
90th % EV
13
101.2
Barrel %
61
10.2
Hard-Hit %
67
45.6
Sweet-Spot %
23
32.7
Bat Speed
Avg
65
71.7
Median
62
73.0
90th %
53
76.8
Plate Discipline
Chase %
9
37.5
Whiff %
10
30.2
K %
33
22.8
BB %
3
3.5
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+
109
≈ 82th pctl
Chase cost
-3.6r
45 swings @ bad pitch
Passive cost
-1.3r
25 takes @ hittable pitch
Swing rate
53.7%
227 pitches seen
Runs per 100
-2.15
lg avg -2.53
Count
View
2121255+18%11225+30%10-17%18-13%15-9%11324+0%10-25%12-25%16+22%9+43%72+0%7+25%8+75%8+0%1131313411CATCHER'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: 227