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Player

Jordan Walker

STLRFBats RThrows RActive

Season 2025 pitches faced. Sequences are 2-, 3-, and 4-pitch windows. Count filters apply to 2-pitch type rows only. Location sequences use a 4-region plate map. Date windows stay on Arsenal and Hitting.

2-pitch windows

1,150

Chase%

36.8%

Whiff%

33.7%

xwOBA

0.262

Sequence Entropy

72

Sequence Lift

11.7%

Sequence Effectiveness

-0.053

Location sequence
Type plus a 4-region plate map (up-in, up-away, down-in, down-away). Pairs under 20 sequences are hidden. Count filters do not apply here.
Transition flow
Two-pitch sequences. Link width is how often the next type follows.
Four-seam FastballSinkerSliderSweeperChangeupCutterCurveballKnuckle CurveSplitterSlurveUnknownFour-seam FastballSinkerSliderSweeperChangeupCutterCurveballSplitterKnuckle CurveSlurveUnknown
Transition lift
P(next | first) minus the unconditional next-pitch mix. Positive means that follow-up is used more than usual after the first type.
Four-seam FastballSinkerSliderSweeperChangeupCutterCurveballKnuckle CurveSplitterSlurveUnknownFour-seam FastballSinkerSliderSweeperChangeupCutterCurveballSplitterKnuckle CurveSlurveUnknown
Sequence tree from Four-seam Fastball
Branches are 2-pitch, then 3- and 4-pitch n-grams when the sample clears the display floor. Count filters hide 3/4-grams.
Four-seam FastballFour-seam FastballFour-seam FastballFour-seam FastballChangeupSliderSliderFour-seam FastballSweeperSweeperChangeupFour-seam FastballCurveballCutterSinkerSliderSliderFour-seam FastballFour-seam FastballFour-seam FastballSweeperSweeperFour-seam FastballFour-seam FastballSliderChangeupFour-seam FastballChangeupChangeupSinkerSinkerFour-seam FastballCutterFour-seam FastballFour-seam FastballCurveballFour-seam FastballCurveballKnuckle CurveFour-seam FastballKnuckle CurveSplitter
Chase% after Four-seam Fastball
Last-pitch rates on the follow-up. Sample floors hide tiny pairs.
Pooled model after Four-seam Fastball
Observed mix versus a league-pooled next-pitch model given last pitch and count. Smoothing for rare contexts, not a sit or pick.