Players · G · Pitcher · 2023

Javy Guerra

Age: 28
B/T: L/R
Height: 6' 0"
Weight: 190 lb

Born: September 25, 1995 in David, Panama
MLB debut: May 4, 2018

dbWAR: -.9
IP: 19.1
ERA: 6.05
FIP: 6.88
K/9: 6.5
FIP−: 159

Javy Guerra was a relief pitcher for the Tampa Bay Rays. In 2023 he struck out 14 batters over 19.1 innings across 17 appearances, going 0-0. His ERA of 6.05 was 39.7% higher than the league average of 4.33. Stripping out defence, his 6.88 FIP suggests that his ERA had some help behind him. He missed bats on 21.6% of swings (8.3% of every pitch he threw), walked 22.7% of the batters he faced and struck out 14.4%. His -0.4 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, 2023.

FIP6.88

K/96.5

WHIP2.02

WAR-.4

WAR by season

Pitching

Standard and advanced, by season.


2023	TB/MIL	17	2	19.1	0	0	17	13	14	22	6.05	6.88	2.02	6.5	10.2	140	159	-0.4
2022	TB/SD	18	0	18.0	2	1	16	10	10	11	5.00	6.17	1.50	5.0	5.5	126	155	-0.4
2021	SD	4	0	3.2	0	0	4	2	3	2	4.91	3.17	1.64	7.4	4.9	115	74	0.1
2020	SD	14	0	13.1	1	0	25	15	12	5	10.13	3.72	2.25	8.1	3.4	227	83	0.2
2019	SD	8	0	8.2	0	0	7	5	6	3	5.19	7.37	1.15	6.2	3.1	115	164	-0.2

Batting

Standard and advanced, by season.

																					Trend
2021	SD	1	0	0	0	0	0	0	0	—	—	—	—	—	—	—	—	—	—	0.0	—
2018	SD	11	19	2	0	1	0	3	9	.125	.263	.125	.000	.286	15.8%	47.4%	.204	-1.8	21	-0.1	—

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2023. 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	43	33	7	2	10	10	.212	.395	.455	.353	23.3%
vs RHB	54	39	10	0	12	4	.256	.444	.256	.348	7.4%

Pitch sequencing

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

ShowBatter

Four-seamSinkerSliderSweeper

Select a count to see exactly what Javy Guerra throws in it.

Pitch arsenal

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

Season


Four-Seam Fastball	35.1%	127	97.8	2,298	52.0%	28.1%	28	.179	.609
Sinker	33.1%	120	97.4	2,139	35.8%	7.1%	24	.333	1.000
Slider	16.0%	58	88.7	2,351	32.8%	27.8%	10	—	—
Sweeper	15.7%	57	83.6	2,630	24.6%	26.7%	10	—	—

Javy Guerra'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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Javy Guerra

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.