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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

Pitching value vs. SP peers

Rank #138 of 164

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

-500+50+100+150Kumar Rocker
Kumar Rocker · #60
V⁻ —VORP -47V⁺ —
Kumar Rocker

Kumar Rocker

SP·TEX
Compare
Compare
BF
262
K %
18.7%
BB %
9.9%
xwOBA
.334
PTS
88
PPG
7.33
Career Seasons
YrGGSIPWLSVHLDERAFIPK%BB%K-BB%xwOBABABIPLOB%GB%PtsPPG
Proj231785.056004.263.9820.0%8.2%11.8%————1305.63
2026 MLB Percentiles

Pitching Profile

Arsenal
FB Velo
50
93.6
FB Spin
17
2147
Extension
2026
12
11
61.0
2
5
0
0
3.54
4.15
18.7%
9.9%
8.8%
.334
.274
79.1%
48.1%
88
7.33
2025161573.045005.304.6219.5%8.0%11.5%.365.31370.8%49.0%955.94
20243311.702003.863.6125.5%10.9%14.6%.284.33373.9%52.9%113.67
81
6.76
Results
xwOBA
32
.334
Barrel %
54
8.1
Hard-Hit %
36
42.2
K %
31
18.7
BB %
22
9.9
Chase %
41
30.0
Whiff %
41
21.1
Command & Stuff

Pitching+

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

Pitching+
102
≈ 58th pctl
Stuff+
105
if they swing
Command+
105
out-of-zone take RV
Strike quality+
97
RV of in-zone pitches
Crushable pitches
13.1%
34 meatballs
Putaway counts (0-2, 1-2)
0.035
RV per pitch · league 0.042
-0.007 better than avg · 68 pitches
Lower RV = more wasted whiff chances when they choose not to put hitters away.
Hitter's counts (3-0, 3-1, 2-0)
0.057
RV per pitch · league 0.029
+0.028 worse than avg · 14 pitches
How often they groove get-me-overs vs. nibble safely.
Based on 260 pitches. RV = Statcast delta_run_exp; lower = better for the pitcher.
Pitch Arsenal
PitchUsageVeloSpinIVBHBExtWhiff%Zone%CSW%Chase%PutAway%xwOBA
SliderSL
38.1%84.62141-1.3-1.06.7926.9%37.4%22.2%38.7%19.5%0.182
SinkerSI
36.9%94.92106

2026 Movement Profile (Induced Break)

MLB Avg.
6"12"18"24"24"24"24"1B ◀ MOVES TOWARD ▶ 3B▲MORERISE▼MOREDROPARMANGLE36°100 PITCHSAMPLE
SLSICHFFFC
Usage38%37%13%9%3%
MPH84.694.989.695.391.5
RHP Avg86.794.386.995.089.8
+7.2
+16.0
6.79
17.6%
52.1%
20.8%
26.1%
15.4%
0.391
ChangeupCH
12.7%89.61668+7.1+14.76.8535.7%39.4%21.2%20.0%20.0%0.371
4-Seam FastballFF
8.8%95.32136+11.9+9.96.7925.0%60.9%26.1%22.2%33.3%0.048
CutterFC
3.5%91.52181+5.7+0.96.770.0%66.7%44.4%33.3%—1.174

2026 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′DECISIONPOINTFF · 18″SI · 19″FC · 23″CH · 23″SL · 26″arm side ◀ ▶ glove sidedrops ◀ ▶ rises
Side View
depth × vertical
1′2′3′4′5′6′-3′0′5′10′15′20′23′FF · 27″SI · 27″FC · 36″CH · 40″SL · 54″DECISION POINTPLATEfeet to plate
swing time150 ms

Each pitch is launched from a shared decision point (4.16′ height) and advanced using its own Statcast kinematics (release velocity + constant acceleration, so gravity, drag, and Magnus are all in the curve). RHP.

2026 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
SLSICHFFFC-2′-1′0′1′2′1′2′3′4′1B ◀ catcher view ▶ 3B
At the Plate
Where they actually cross
SLSICHFFFC-2′-1′0′1′2′1′2′3′4′1B ◀ catcher view ▶ 3B
SLSICHFFFC

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.