Players · D · Pitcher · 2025

Anthony DeSclafani

Arizona Diamondbacks National League West

Age: 35
B/T: R/R
Height: 6' 2"
Weight: 195 lb
Number: #21

Born: April 18, 1990 in Freehold, NJ, United States
MLB debut: May 14, 2014
Drafted: 2011, round 6
College: Florida
High school: Colts Neck

dbWAR: 10.6
IP: 38.2
ERA: 5.12
FIP: 6.29
K/9: 8.4
FIP−: 151

Anthony DeSclafani was a relief pitcher for the Arizona Diamondbacks. In 2025 he struck out 36 batters over 38.2 innings across 13 appearances, going 1-2. His ERA of 5.12 was 23.1% higher than the league average of 4.16 — 14th of 18 on his team, and 424th of 542 among MLB pitchers with 20+ innings. Stripping out defence, his 6.29 FIP suggests that his ERA had some help behind him. He missed bats on 25.9% of swings (12.1% of every pitch he threw), walked 7.1% of the batters he faced and struck out 21.3%. His -0.6 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, 2025.

FIP6.29

K/98.4

WHIP1.27

WAR-.6

WAR by season

Pitching

Standard and advanced, by season.


2025	AZ	13	4	38.2	1	2	2	37	22	36	12	5.12	6.29	1.27	8.4	2.8	123	151	-0.6
2023	SF	19	18	99.2	4	8	0	105	54	79	20	4.88	4.35	1.25	7.1	1.8	113	100	1.1
2022	SF	5	5	19.0	0	2	0	34	14	17	4	6.63	4.85	2.00	8.1	1.9	167	122	0.0
2021	SF	31	31	167.2	13	7	0	141	59	152	42	3.17	3.62	1.09	8.2	2.3	74	85	3.3
2020	CIN	9	7	33.2	1	2	0	41	27	25	16	7.22	6.10	1.69	6.7	4.3	162	137	-0.2
2019	CIN	31	31	166.2	9	9	0	151	72	167	49	3.89	4.43	1.20	9.0	2.6	86	98	2.2
2018	CIN	21	21	115.0	7	8	0	118	63	108	30	4.93	4.83	1.29	8.5	2.3	119	116	0.6
2016	CIN	20	20	123.1	9	5	0	120	45	105	30	3.28	3.96	1.22	7.7	2.2	78	94	1.8
2015	CIN	31	31	184.2	9	13	0	194	83	151	55	4.05	3.67	1.35	7.4	2.7	102	93	2.9

Batting

Standard and advanced, by season.


2021	SF	30	62	2	0	1	4	33	.039	.109	.059	.020	.111	6.5%	53.2%	.091	-11.8	-57	-0.3
2019	CIN	30	57	6	0	1	0	28	.109	.109	.109	.000	.222	0.0%	49.1%	.095	-11.1	-54	-0.2
2018	CIN	20	46	6	1	4	0	25	.143	.143	.214	.071	.313	0.0%	54.3%	.153	-6.1	-14	0.1
2016	CIN	19	43	5	0	1	1	22	.122	.143	.146	.024	.263	2.3%	51.2%	.130	-6.5	-29	-0.1
2015	CIN	30	64	9	0	3	3	33	.155	.194	.172	.017	.346	4.7%	51.6%	.169	-7.5	-4	0.1

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2025. 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	72	62	16	4	7	13	.258	.347	.484	.360	18.1%
vs RHB	97	86	21	7	5	23	.244	.302	.558	.352	23.7%

Pitch sequencing

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

ShowBatter

SliderKnuckle curveSplitterFour-seamSinker

Select a count to see exactly what Anthony DeSclafani throws in it.

Pitch arsenal

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

Season


Slider	22.1%	140	88.2	2,303	45.7%	29.4%	33	.424	1.426
Knuckle Curve	21.5%	136	83.2	2,356	44.1%	23.2%	33	.152	.453
Splitter	20.3%	129	83.6	1,289	43.4%	45.2%	28	.071	.284
Four-Seam Fastball	18.0%	114	93.9	2,348	47.4%	17.5%	19	.316	1.142
Sinker	17.8%	113	94.1	2,185	45.1%	10.3%	35	.286	.975

Anthony DeSclafani'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 2025 seasons by command, run prevention and role, on rate statistics rather than totals.

Carson SeymourSF

ERA: 4.75
FIP: 6.11
SO: 26
WAR: -0.6

Kevin KellyTB

ERA: 5.90
FIP: 5.66
SO: 35
WAR: -0.4

Chad GreenTOR

ERA: 5.56
FIP: 6.73
SO: 35
WAR: -1.0

Richard FittsBOS

ERA: 5.00
FIP: 5.80
SO: 40
WAR: -0.3

Comparable

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.