Skip to content

Player

TJ Rumfield

COL1BBats LThrows RActive

Season 2026 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

1,652

Chase%

32.1%

Whiff%

16.5%

xwOBA

0.342

Sequence Entropy

66

Sequence Lift

8.2%

Sequence Effectiveness

+0.035

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 FastballSliderSinkerChangeupCutterCurveballSweeperSplitterKnuckle CurveSlurveFastballKnuckleballForkballEephusFour-seam FastballSliderSinkerChangeupCutterSweeperCurveballSplitterKnuckle CurveSlurveFastballKnuckleballEephusForkballUnknown
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 FastballSliderSinkerChangeupCutterCurveballSweeperSplitterKnuckle CurveSlurveFastballKnuckleballForkballEephusFour-seam FastballSliderSinkerChangeupCutterSweeperCurveballSplitterKnuckle CurveSlurveFastballKnuckleballEephusForkballUnknown
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 FastballSweeperCurveballChangeupSliderSplitterSliderFour-seam FastballSweeperFour-seam FastballCurveballChangeupChangeupFour-seam FastballSplitterFour-seam FastballCutterSliderFour-seam FastballFour-seam FastballChangeupSliderSliderFour-seam FastballSliderChangeupCurveballChangeupFour-seam FastballFour-seam FastballChangeupFour-seam FastballCutterCutterFour-seam FastballChangeupSinkerSweeperCurveballFour-seam FastballFour-seam FastballChangeupCurveballSinkerSinkerSliderCutterFour-seam FastballSweeperFour-seam FastballFour-seam FastballSweeperSplitterFour-seam FastballFour-seam FastballSplitterSliderKnuckle CurveKnuckle CurveSlurve
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.