Players · M · Pitcher · 2026

Juan Morillo

Arizona Diamondbacks National League West

Age: 27
B/T: R/R
Height: 6' 1"
Weight: 215 lb
Number: #62

Born: March 19, 1999 in Maracaibo, Venezuela
MLB debut: April 19, 2025

dbWAR: 1.9
IP: 63.1
ERA: 2.13
FIP: 2.74
K/9: 10.4
FIP−: 66

Juan Morillo is a relief pitcher for the Arizona Diamondbacks. In 2026 he struck out 73 batters over 63.1 innings across 68 appearances, going 5-4. His ERA of 2.13 is 49.0% lower than the league average of 4.18 — the second best on his team, and 30th of 538 among MLB pitchers with 20+ innings. Stripping out defence, his 2.74 FIP suggests that his ERA had some help behind him. He missed bats on 29.6% of swings (14.6% of every pitch he threw), walked 8.9% of the batters he faced and struck out 28.3%. His 1.4 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, 2026.

FIP2.74

K/910.4

WHIP1.03

WAR1.4

WAR by season

Pitching

Standard and advanced, by season.

																				Trend
2026	AZ	68	0	63.1	5	4	3	42	15	73	23	2.13	2.74	1.03	10.4	3.3	51	66	1.4
2025	AZ	42	0	34.1	0	3	1	38	16	36	20	4.19	3.63	1.69	9.4	5.2	101	87	0.4

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2026. 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	140	123	21	1	14	42	.171	.259	.244	.234	30.0%
vs RHB	118	103	21	2	9	31	.204	.288	.311	.274	26.3%

Pitch sequencing

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

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Four-seamChangeupSinkerSlider

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Pitch arsenal

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

Season


Four-Seam Fastball	47.7%	486	98.6	2,253	53.9%	30.9%	108	.148	.458
Changeup	21.2%	216	92.5	2,272	38.4%	32.5%	59	.203	.571
Sinker	19.2%	196	98.6	2,189	57.1%	17.0%	38	.158	.489
Slider	11.9%	121	84.8	2,743	39.7%	43.2%	21	.381	1.010

Juan Morillo'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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Similar players

Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.

Abner UribeMIL

ERA: 1.97
FIP: 2.68
SO: 62
WAR: 1.4

Very close

Tayler SaucedoLAA

ERA: 2.53
FIP: 2.68
SO: 26
WAR: 0.5

Very close

Anthony BenderMIA

ERA: 2.62
FIP: 2.40
SO: 41
WAR: 0.9

Very close

David BednarNYY

ERA: 2.47
FIP: 2.61
SO: 76
WAR: 1.7

Very close

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.