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    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
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    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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Zach McKinstry

Zach McKinstry

2B / 3B / SS / OF·DET
Compare
Compare
BF
6
K %
0.0%
BB %
0.0%
xwOBA
.591
PTS
-4
PPG
-4.00
Career Seasons
YrGGSIPWLSVHLDERAFIPK%BB%K-BB%xwOBABABIPLOB%GB%PtsPPG
2025100.300000.003.100.0%0.0%0.0%.044.000—100.0%11.00
2023 MLB Percentiles

Pitching Profile

6 BF — below qualified cutoff. Percentiles vs. qualified pool (faded).

Arsenal
FB Velo
0
—
FB Spin
0
—
2024
3
0
2.0
0
0
0
0
9.00
11.10
0.0%
12.5%
-12.5%
.367
.000
0.0%
28.6%
0
0.00
2023101.0000018.0016.100.0%0.0%0.0%.591.40062.5%50.0%-4-4.00
Extension
0
5.36
Results
xwOBA
0
.591
Barrel %
0
16.7
Hard-Hit %
0
66.7
K %
0
0.0
BB %
100
0.0
Chase %
0
20.0
Whiff %
0
0.0
Command & Stuff

Pitching+

Expected run-value conceded per pitch against a rational hitter, standardized against the season. 100 = avg · 110 = 1 SD better.

Pitching+
55
≈ 1th pctl
Stuff+
-4
if they swing
Command+
142
out-of-zone take RV
Strike quality+
2
RV of in-zone pitches
Crushable pitches
54.5%
12 meatballs
Putaway counts (0-2, 1-2)
0.051
RV per pitch · league 0.048
+0.004 worse than avg · 6 pitches
Lower RV = more wasted whiff chances when they choose not to put hitters away.
Hitter's counts (3-0, 3-1, 2-0)
—
RV per pitch · league 0.030
— on avg · 0 pitches
How often they groove get-me-overs vs. nibble safely.
Based on 22 pitches. RV = Statcast delta_run_exp; lower = better for the pitcher.
Pitch Arsenal
PitchUsageVeloSpinIVBHBExtWhiff%Zone%CSW%Chase%PutAway%xwOBA
OtherFA
100.0%80.01964+17.6+7.55.360.0%54.5%27.3%20.0%0.0%0.591

2023 Movement Profile (Induced Break)

MLB Avg.
6"12"18"24"24"24"24"1B ◀ MOVES TOWARD ▶ 3B▲MORERISE▼MOREDROPARMANGLE36°100 PITCHSAMPLE
FA
Usage100%
MPH80.0
RHP Avg67.4

2023 Swing-Out Snapshot

Commit at the decision point, then fast-forward 150ms. Where is each pitch when your bat crosses the zone? Two views of the same moment — catcher-facing and from the side.

Catcher View
horizontal × vertical
0.5′1′1.5′2′2.5′3′DECISIONPOINTFA · 18″arm side ◀ ▶ glove sidedrops ◀ ▶ rises
Side View
depth × vertical
1′2′3′4′5′6′-3′0′5′10′15′20′23′FA · 64″DECISION POINTPLATEfeet to plate
swing time150 ms

Each pitch is launched from a shared decision point (4.52′ height) and advanced using its own Statcast kinematics (release velocity + constant acceleration, so gravity, drag, and Magnus are all in the curve). RHP.

2023 Tunneling

Where pitches are when the hitter commits — and where they end up. Tighter cluster on the left = more deceptive arsenal.

At Decision
23 ft out · ~280ms before arrival
FA-2′-1′0′1′2′1′2′3′4′1B ◀ catcher view ▶ 3B
At the Plate
Where they actually cross
FA-2′-1′0′1′2′1′2′3′4′1B ◀ catcher view ▶ 3B
FA

Decision point computed from Statcast kinematics (vx0/vy0/vz0, ax/ay/az) by projecting each pitch back to y = 23 ft. Coordinates in catcher’s view: 1B on the left, 3B on the right. RHP.