Players · P · Pitcher · 2024

Walter Pennington

Age: 26
B/T: L/L
Height: 6' 2"
Weight: 205 lb

Born: April 14, 1998 in Broomfield, CO, United States
MLB debut: July 5, 2024
College: Colorado School of Mines

dbWAR: .1
IP: 18.0
ERA: 3.00
FIP: 4.17
K/9: 8.5
FIP−: 102

Walter Pennington was a relief pitcher for the Texas Rangers. In 2024 he struck out 17 batters over 18.0 innings across 16 appearances, going 1-0. His ERA of 3.00 was 26.5% lower than the league average of 4.08. Stripping out defence, his 4.17 FIP suggests that his ERA had some help behind him. He missed bats on 26.5% of swings (12.1% of every pitch he threw), walked 13.1% of the batters he faced and struck out 20.2%. His 0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2024.

FIP4.17

K/98.5

WHIP1.67

WAR.1

Pitching

Standard and advanced, by season.

																				Trend
2024	TEX/KC	16	1	18.0	1	0	0	19	6	17	11	3.00	4.17	1.67	8.5	5.5	74	102	0.1	—

Platoon splits

How left- and right-handed hitters fare against him.

Opponent batting by the side the hitter bats from, 2024. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	41	34	10	1	6	10	.294	.415	.471	.393	24.4%
vs RHB	43	37	9	0	5	7	.243	.349	.297	.302	16.3%

Pitch sequencing

What Walter Pennington throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter

SliderSinkerCutter

Select a count to see exactly what Walter Pennington throws in it.

Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.


Slider	40.9%	135	83.8	2,278	39.3%	40.9%	35	.286	.788
Sinker	30.3%	100	91.5	2,234	49.0%	14.6%	18	.167	.622
Cutter	27.0%	89	89.4	2,257	48.3%	14.3%	18	.333	.844

Walter Pennington's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

Head to head

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Walter Pennington

How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.