DJ Herz Stats: Statcast, Visuals & Advanced Metrics

P | Washington Nationals

Bats/Throws: R/L | 6' 2" 197 lbs | Age: 25

Draft: 2019 | Rd. 8, No. 252, Chicago Cubs | Terry Sanford HS

	W	L	ERA	G	GS	IP	SO	WHIP
2024	4	9	4.16	19	19	88.2	106	1.26
2026	0	1	10.29	2	2	7	6	2.00
2 Seasons	4	10	4.61	21	21	95.2	112	1.32

	G	W-L	ERA	IP	SO	WHIP
2024	19	4-9	4.16	88.2	106	1.26
2026	2	0-1	10.29	7	6	2.00
2 Seasons	21	4-10	4.61	95.2	112	1.32

Player Apps

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Pitch Usage

Statcast Standard Splits Game Logs

Standard MLB Batting Statistics

No MLB Hitting Statistics.

Standard MLB Pitching Statistics

Season	Tm	LG	BF	W	L	ERA	G	GS	IP	H	R	ER	HR	BB	SO	WHIP
2024	WSH	NL	382	4	9	4.16	19	19	88.2	76	45	41	11	36	106	1.26
2026	WSH	NL	35	0	1	10.29	2	2	7.0	11	8	8	3	3	6	2.00
2 Seasons	WSH	NL	417	4	10	4.61	21	21	95.2	87	53	49	14	39	112	1.32

*: All Star Season, Rankings AL/NL: Top 5 10 15 20, Click for Chart.

Standard MLB Fielding Statistics

Season	Tm	LG	POS	G	GS	INN	TC	A	FPCT%
2024	WSH	NL	P	19	19	88.2	5	5	1.000
2026	WSH	NL	P	2	2	7.0	1	1	1.000
2 Seasons	WSH	NL	P	21	21	95.2	6	6	1.000

Standard Minor League Batting Statistics

No Minor League Hitting Statistics.

Standard Minor League Pitching Statistics

Season	Tm	LG	L	W	L	ERA	G	GS	IP	H	R	ER	HR	BB	SO	WHIP
2019	AZL Cubs 2	AZL	ROK	0	1	2.61	6	6	10.1	10	8	3	0	8	8	1.74
2021	2 Teams		Minors	4	4	3.31	20	20	81.2	42	31	30	7	44	131	1.05
2021	Myrtle Beach Pelicans	A E	A	3	4	3.43	17	17	65.2	32	25	25	6	38	105	1.07
2021	South Bend Cubs	A+ C	A+	1	0	2.81	3	3	16.0	10	6	5	1	6	26	1.00
2022	2 Teams		Minors	3	6	4.25	26	26	95.1	57	51	45	8	70	141	1.33
2022	South Bend Cubs	MID	A+	2	2	2.26	17	17	63.2	33	18	16	3	37	99	1.10
2022	Tennessee Smokies	SOU	AA	1	4	8.24	9	9	31.2	24	33	29	5	33	42	1.80
2023	2 Teams		Minors	3	3	3.43	22	22	94.1	67	42	36	5	57	133	1.31
2023	Tennessee Smokies	SOU	AA	1	1	3.97	14	14	59.0	47	31	26	4	37	80	1.42
2023	Harrisburg Senators	EAS	AA	2	2	2.55	8	8	35.1	20	11	10	1	20	53	1.13
2023	2 Teams		AA	3	3	3.43	22	22	94.1	67	42	36	5	57	133	1.31
2024	Rochester Red Wings	INT	AAA	3	3	3.89	10	10	39.1	24	21	17	3	32	44	1.42
2026	4 Teams		Minors	0	1	3.16	10	10	25.2	19	10	9	4	7	30	1.01
2026	FCL Nationals	FCL	ROK	0	0	0.00	2	2	5.0	0	0	0	0	0	8	0.00
2026	Fredericksburg Nationals	CAR	A	0	0	2.45	2	2	3.2	6	1	1	0	1	6	1.91
2026	Harrisburg Senators	EAS	AA	0	0	0.00	2	2	4.0	1	0	0	0	2	4	0.75
2026	Rochester Red Wings	INT	AAA	0	1	5.54	4	4	13.0	12	9	8	4	4	12	1.23
	2 Teams		ROK	0	1	1.76	8	8	15.1	10	8	3	0	8	16	1.17
	Rochester Red Wings	INT	AAA	3	4	4.30	14	14	52.1	36	30	25	7	36	56	1.38
	2 Teams		AA	4	7	4.50	33	33	130.0	92	75	65	10	92	179	1.42
	South Bend Cubs	MID	A+	3	2	2.37	20	20	79.2	43	24	21	4	43	125	1.08
	2 Teams		A	3	4	3.38	19	19	69.1	38	26	26	6	39	111	1.11
Career Minors	8 Teams			13	18	3.63	94	94	346.2	219	163	140	27	218	487	1.26

Standard Minor League Fielding Statistics

Season	Tm	LG	L	POS	G	GS	INN	TC	PO	A	E	DP	FPCT%
2019	AZL Cubs 2	AZL	ROK	P	6	6	10.1	3	1	0	2	0	.333
2021	2 Teams		Minors	P	20	20	81.2	15	5	10	0	1	1.000
2021	Myrtle Beach Pelicans	A E	A	P	17	17	65.2	14	5	9	0	1	1.000
2021	South Bend Cubs	A+ C	A+	P	3	3	16.0	1	0	1	0	0	1.000
2022	2 Teams		Minors	P	26	26	95.1	17	4	8	5	1	.706
2022	South Bend Cubs	MID	A+	P	17	17	63.2	11	4	6	1	1	.909
2022	Tennessee Smokies	SOU	AA	P	9	9	31.2	6	0	2	4	0	.333
2023	2 Teams		Minors	P	22	22	94.1	13	2	8	3	0	.769
2023	Tennessee Smokies	SOU	AA	P	14	14	59.0	11	2	6	3	0	.727
2023	Harrisburg Senators	EAS	AA	P	8	8	35.1	2	0	2	0	0	1.000
2023	2 Teams		AA	P	22	22	94.1	13	2	8	3	0	.769
2024	Rochester Red Wings	INT	AAA	P	10	10	39.1	5	1	1	3	0	.400
2026	4 Teams		Minors	P	10	10	25.2	5	2	3	0	0	1.000
2026	FCL Nationals	FCL	ROK	P	2	2	5.0	0	0	0	0	0	.000
2026	Fredericksburg Nationals	CAR	A	P	2	2	3.2	1	0	1	0	0	1.000
2026	Harrisburg Senators	EAS	AA	P	2	2	4.0	0	0	0	0	0	.000
2026	Rochester Red Wings	INT	AAA	P	4	4	13.0	4	2	2	0	0	1.000
	2 Teams		ROK	P	8	8	15.1	3	1	0	2	0	.333
	Rochester Red Wings	INT	AAA	P	14	14	52.1	9	3	3	3	0	.667
	2 Teams		AA	P	33	33	130.0	19	2	10	7	0	.632
	South Bend Cubs	MID	A+	P	20	20	79.2	12	4	7	1	1	.917
	2 Teams		A	P	19	19	69.1	15	5	10	0	1	1.000
Career Minors	8 Teams			P	94	94	346.2	58	15	30	13	2	.776

Rankings

Losses

Season	Losses	Rank
2024	9	21st in NL

Awards

AFL Rising Stars

Season	Team
2023

EAS Pitcher of the Week

Week	Team
08/20/2023

MID Post-Season All-Star

Season	Team
2022

MiLB.com Organization All-Star

Season	Team
2022
2021

Baseball America High Class A All-Star

Season	Team
2022

MID Pitcher of the Week

Week	Team
06/05/2022

CAR Post-Season All-Star

Season	Team
2021

Transactions

Team	Date	Transaction
	09/21/2026	Washington Nationals activated LHP DJ Herz from the 60-day injured list.
	08/26/2026	Washington Nationals sent LHP DJ Herz on a rehab assignment to Rochester Red Wings.
	08/14/2026	Washington Nationals sent LHP DJ Herz on a rehab assignment to Harrisburg Senators.
	08/14/2026	Washington Nationals sent LHP DJ Herz on a rehab assignment to Harrisburg Senators.
	08/08/2026	Washington Nationals sent LHP DJ Herz on a rehab assignment to Fredericksburg Nationals.
	06/16/2026	Washington Nationals sent LHP DJ Herz on a rehab assignment to Fredericksburg Nationals.
	06/05/2026	Washington Nationals sent LHP DJ Herz on a rehab assignment to FCL Nationals.
	06/05/2026	Washington Nationals sent LHP DJ Herz on a rehab assignment to FCL Nationals.
	02/11/2026	Washington Nationals placed LHP DJ Herz on the 60-day injured list.
	11/06/2025	Washington Nationals activated LHP DJ Herz from the 60-day injured list.
	03/26/2025	Washington Nationals transferred LHP DJ Herz from the 15-day injured list to the 60-day injured list.
	03/24/2025	Washington Nationals placed LHP DJ Herz on the 15-day injured list.
	12/19/2024	LHP DJ Herz changed number to 77.
	10/01/2024	Washington Nationals recalled LHP DJ Herz from FCL Nationals.
	09/27/2024	Washington Nationals optioned LHP DJ Herz to FCL Nationals.
	07/23/2024	Washington Nationals recalled LHP DJ Herz from Rochester Red Wings.
	07/08/2024	Washington Nationals optioned LHP DJ Herz to Rochester Red Wings.
	06/04/2024	Washington Nationals recalled LHP DJ Herz from Rochester Red Wings.
	03/11/2024	Washington Nationals optioned LHP DJ Herz to Rochester Red Wings.
	03/07/2024	Washington Nationals Prospects activated LHP DJ Herz.
	11/14/2023	Washington Nationals selected the contract of LHP DJ Herz from Harrisburg Senators.
	11/03/2023	LHP DJ Herz assigned to National League Fall Stars.
	09/22/2023	Scottsdale Scorpions activated LHP DJ Herz.
	07/31/2023	Washington Nationals traded 3B Jeimer Candelario and cash to Chicago Cubs for LHP DJ Herz and SS Kevin Made.
	07/31/2023	LHP DJ Herz assigned to Harrisburg Senators.
	07/31/2023	Harrisburg Senators activated LHP DJ Herz.
	05/09/2023	Tennessee Smokies activated LHP DJ Herz from the 7-day injured list.
	04/06/2023	Tennessee Smokies placed LHP DJ Herz on the 7-day injured list.
	09/11/2022	Tennessee Smokies activated LHP DJ Herz.
	09/11/2022	Tennessee Smokies activated LHP DJ Herz.
	09/02/2022	Tennessee Smokies transferred LHP DJ Herz to the Development List.
	07/15/2022	LHP DJ Herz assigned to Tennessee Smokies from South Bend Cubs.
	09/02/2021	LHP DJ Herz assigned to South Bend Cubs from Myrtle Beach Pelicans.
	05/02/2021	LHP Davidjohn Herz assigned to Myrtle Beach Pelicans from AZL Cubs Red.
	07/23/2019	LHP Davidjohn Herz assigned to AZL Cubs 2.
	06/19/2019	Chicago Cubs signed LHP Davidjohn Herz.

Platoon Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Washington Nationals	MLB	vs Left				2			2.1	9	2			0	0	0	0.86	.222	.222	.222	.444
Washington Nationals	MLB	vs Right				2			4.2	26	9			3	3	6	2.57	.391	.462	.957	1.419

Monthly Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Washington Nationals	MLB	September	0	1	10.29	2	2	0	7.0	35	11	8	8	3	3	6	2.00	.344	.400	.750	1.150
Washington Nationals	MLB	Post All-Star	0	1	10.29	2	2	0	7.0	35	11	8	8	3	3	6	2.00	.344	.400	.750	1.150

Baserunner Splits

Team	L	Type	G	IP	BF	H	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Washington Nationals	MLB	Bases Empty	2	3.1	17	4	1	3	1	2.10	.286	.412	.571	.983
Washington Nationals	MLB	Runner at 1st	2	1.0	7	4	2	0	2	4.00	.571	.571	1.714	2.285
Washington Nationals	MLB	Runner at 2nd	2	1.0	5	2	0	0	0	2.00	.400	.400	.600	1.000
Washington Nationals	MLB	Runners at 2nd & 3rd	2	1.1	4	0	0	0	2	0.00	.000	.000	.000	.000
Washington Nationals	MLB	Runner at 3rd	1	0.1	2	1	0	0	1	3.00	.500	.500	.500	1.000
Washington Nationals	MLB	Scoring Position	2	2.2	11	3	0	0	3	1.13	.273	.273	.364	.637

Game Type Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Washington Nationals	MLB	Home Games	0	0	12.00	1	1	0	3.0	16	6	4	4	2	1	2	2.33	.400	.438	.867	1.305
Washington Nationals	MLB	Away Games	0	1	9.00	1	1	0	4.0	19	5	4	4	1	2	4	1.75	.294	.368	.647	1.015
Washington Nationals	MLB	Day Games	0	0	12.00	1	1	0	3.0	16	6	4	4	2	1	2	2.33	.400	.438	.867	1.305
Washington Nationals	MLB	Night Games	0	1	9.00	1	1	0	4.0	19	5	4	4	1	2	4	1.75	.294	.368	.647	1.015
Washington Nationals	MLB	Leading Off Inning				2			1.1	7	1			0	2	1	2.25	.200	.429	.200	.629

Outs Splits

Team	L	Type	G	IP	BF	H	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Washington Nationals	MLB	No Outs	2	2.1	11	2	0	2	2	1.71	.222	.364	.333	.697
Washington Nationals	MLB	One Out	2	2.1	13	5	1	1	2	2.57	.417	.462	.833	1.295
Washington Nationals	MLB	Two Outs	2	2.1	11	4	2	0	2	1.71	.364	.364	1.000	1.364

Inning Splits

Team	L	Type	ERA	G	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
Washington Nationals	MLB	First Inning	13.50	2	2.0	12	5	3	3	0	1	4	3.00	.455	.500	.636	1.136
Washington Nationals	MLB	Second Inning	13.50	2	2.0	9	2	3	3	2	1	1	1.50	.250	.333	1.000	1.333
Washington Nationals	MLB	Third Inning	0.00	2	2.0	9	3	0	0	0	0	0	1.50	.333	.333	.556	.889
Washington Nationals	MLB	Fourth Inning	18.00	1	1.0	5	1	2	2	1	1	1	2.00	.250	.400	1.000	1.400

Platoon Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
4 Teams	Minors	vs Left				10			8.2	34	5			0	2	10	0.81	.156	.206	.219	.425
4 Teams	Minors	vs Right				10			16.2	69	14			4	5	20	1.14	.219	.275	.469	.744

Monthly Splits

Team	L	Type	L	ERA	G	GS	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
2 Teams	Minors	June	0	1.17	3	3	7.2	28	4	1	1	0	0	11	0.52	.143	.143	.179	.322
3 Teams	Minors	August	0	0.00	4	4	7.0	30	4	1	0	0	5	9	1.29	.160	.300	.200	.500
Rochester Red Wings	Triple-A	September	1	6.55	3	3	11.0	45	11	8	8	4	2	10	1.18	.256	.289	.628	.917
Fredericksburg Nationals	Single-A	First Half	0	3.38	1	1	2.2	12	4	1	1	0	0	3	1.50	.333	.333	.417	.750
3 Teams	Minors	Second Half	1	4.00	7	7	18.0	75	15	9	8	4	7	19	1.22	.221	.293	.471	.764

Baserunner Splits

Team	L	Type	G	IP	BF	H	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
4 Teams	Minors	Bases Empty	10	17.1	71	11	4	6	21	0.98	.169	.239	.385	.624
Fredericksburg Nationals	Single-A	Bases Loaded	1	1.0	3	0	0	0	3	0.00	.000	.000	.000	.000
4 Teams	Minors	Runner at 1st	7	3.2	15	4	0	0	5	1.09	.267	.267	.467	.734
Fredericksburg Nationals	Single-A	Runners at 1st & 2nd	2	0.1	2	1	0	0	0	3.00	.500	.500	.500	1.000
3 Teams	Minors	Runner at 2nd	6	2.2	9	1	0	1	1	0.75	.125	.222	.125	.347
Rochester Red Wings	Triple-A	Runners at 2nd & 3rd	1	0.0	1	1	0	0	0	-.--	1.000	1.000	2.000	3.000
Rochester Red Wings	Triple-A	Runner at 3rd	2	0.1	2	1	0	0	0	3.00	.500	.500	.500	1.000
3 Teams	Minors	Scoring Position	7	4.1	17	4	0	1	4	1.15	.250	.294	.313	.607

Game Type Splits

Team	L	Type	W	L	ERA	G	GS	SV	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
4 Teams	Minors	Home Games	0	0	1.29	6	6	0	14.0	55	9	3	2	0	5	19	1.00	.180	.255	.240	.495
3 Teams	Minors	Away Games	0	1	5.40	4	4	0	11.2	48	10	7	7	4	2	11	1.03	.217	.250	.543	.793
2 Teams	Minors	Day Games	0	0	0.00	3	3	0	7.0	25	1	1	0	0	2	10	0.43	.043	.120	.043	.163
3 Teams	Minors	Night Games	0	1	4.34	7	7	0	18.2	78	18	9	9	4	5	20	1.23	.247	.295	.493	.788
4 Teams	Minors	Leading Off Inning				10			7.0	30	6			2	2	9	1.14	.214	.267	.500	.767

Outs Splits

Team	L	Type	G	IP	BF	H	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
4 Teams	Minors	No Outs	10	9.1	43	11	3	3	13	1.50	.275	.326	.600	.926
4 Teams	Minors	One Out	10	8.1	31	3	0	3	10	0.72	.107	.194	.179	.373
4 Teams	Minors	Two Outs	10	7.2	29	5	1	1	7	0.78	.179	.207	.286	.493

Inning Splits

Team	L	Type	ERA	G	IP	BF	H	R	ER	HR	BB	SO	WHIP	AVG	OBP	SLG	OPS
4 Teams	Minors	First Inning	0.90	10	10.0	39	6	2	1	1	3	13	0.90	.167	.231	.278	.509
4 Teams	Minors	Second Inning	5.00	9	9.0	35	7	5	5	2	2	12	1.00	.212	.257	.485	.742
4 Teams	Minors	Third Inning	4.50	7	4.0	18	4	2	2	0	1	3	1.25	.235	.278	.353	.631
Rochester Red Wings	Triple-A	Fourth Inning	4.50	2	2.0	9	2	1	1	1	1	2	1.50	.250	.333	.625	.958
Rochester Red Wings	Triple-A	Fifth Inning	0.00	2	0.2	2	0	0	0	0	0	0	0.00	.000	.000	.000	.000

Date	Home Tm	Away Tm	L	ERA	G	GS	IP	H	R	ER	HR	BB	SO	WHIP
2026-09-21	Detroit Tigers	Washington Nationals	1	9.00	1	1	4.0	5	4	4	1	2	4	1.75
2026-09-27	Washington Nationals	New York Mets	0	10.29	1	1	3.0	6	4	4	2	1	2	2.00
September	Washington Nationals		1	10.29	2	2	7.0	11	8	8	3	3	6	2.00

Date	Home Tm	Away Tm	L	ERA	G	GS	IP	H	R	ER	HR	BB	SO	WHIP
2026-06-05	FCL Nationals	FCL Cardinals	0	0.00	1	1	2.0	0	0	0	0	0	4	0.00
2026-06-11	FCL Cardinals	FCL Nationals	0	0.00	1	1	3.0	0	0	0	0	0	4	0.00
2026-06-16	Fredericksburg Nationals	Salem RidgeYaks	0	3.38	1	1	2.2	4	1	1	0	0	3	1.50
June	FCL Nationals		0	0.00	2	2	5.0	0	0	0	0	0	8	0.00
June	Fredericksburg Nationals		0	3.38	1	1	2.2	4	1	1	0	0	3	1.50
2026-08-08	Fredericksburg Nationals	Delmarva Shorebirds	0	2.45	1	1	1.0	2	0	0	0	1	3	1.91
2026-08-14	Harrisburg Senators	Richmond Flying Squirrels	0	0.00	1	1	2.0	0	0	0	0	0	2	0.00
2026-08-20	Akron RubberDucks	Harrisburg Senators	0	0.00	1	1	2.0	1	0	0	0	2	2	0.75
2026-08-26	Rochester Red Wings	Buffalo Bisons	0	0.00	1	1	2.0	1	1	0	0	2	2	1.50
August	Rochester Red Wings		0	0.00	1	1	2.0	1	1	0	0	2	2	1.50
August	Harrisburg Senators		0	0.00	2	2	4.0	1	0	0	0	2	4	0.75
August	Fredericksburg Nationals		0	0.00	1	1	1.0	2	0	0	0	1	3	3.00
2026-09-01	Syracuse Mets	Rochester Red Wings	1	12.46	1	1	2.1	7	6	6	3	0	1	2.31
2026-09-06	Syracuse Mets	Rochester Red Wings	0	7.27	1	1	4.1	2	1	1	1	0	4	1.38
2026-09-11	Rochester Red Wings	Scranton/Wilkes-Barre RailRiders	0	5.54	1	1	4.1	2	1	1	0	2	5	1.23
September	Rochester Red Wings		1	6.55	3	3	11.0	11	8	8	4	2	10	1.18

Statcast Statistics

Season	Age	Pitches	Batted Balls	Barrels	Barrel %	Barrel/PA	Exit Velocity	Max EV	Launch Angle	LA Sweet- Spot %	xBA	xSLG	wOBA	xwOBA	xwOBAcon	HardHit%	K%	BB%	ERA	xERA
2024	23	1586	236	19	8.1	5.0	89.4	113.3	18.0	30.9	.207	.352	.294	.286	.348	34.7	27.7	9.4	4.16	3.29
2026	25	128	26	7	26.9	20.0	90.9	110.8	13.1	42.3	.332	.756	.481	.478	.563	53.8	17.1	8.6	10.29	11.82
Player		1714	262	26	9.9	6.2	89.6	113.3	17.5	32.1	.218	.387	.310	.302	.369	36.6	26.9	9.4
MLB					7.6	4.9	88.6	122.9	12.6	33.3	.244	.407	.316	.316	.368	37.1	22.2	8.4

! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Herz relies on 4 pitches.

Four Seamer

(48.4%) ,

Changeup

(29.7%) ,

Slider

(19.5%) ,

Knuckle Curve

(2.3%) ,

+ If Available Pitches Click to Video.

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+ Similar Pitchers to DJ Herz Based on Velocity and Movement:

2024 - James Paxton

2024 - Reid Detmers

2024 - Jesús Luzardo

2024 - Andrew Heaney

2024 - Cole Ragans

--- Compare All Similar Pitchers

Batted Ball Profile

Season	GB %	AIR %	FB %	LD %	PU %	Pull %	Straight %	Oppo %	Pull GB %	Straight GB %	Oppo GB %	Pull AIR %	Straight AIR %	Oppo AIR %
		AIR: Fly Balls + Line Drives + Popups				All Batted Balls			Batted Ball Breakdown
2024	36.9	63.1	31.4	24.2	7.6	39.8	33.9	26.3	19.5	11.9	5.5	20.3	22.0	20.8
2026	34.6	65.4	30.8	26.9	7.7	34.6	30.8	34.6	7.7	19.2	7.7	26.9	11.5	26.9
Player	36.6	63.4	31.3	24.4	7.6	39.3	33.6	27.1	18.3	12.6	5.7	21.0	21.0	21.4
MLB	44.1	55.9	24.3	24.6	7.1	37.5	37.3	25.0	20.7	17.5	5.8	16.9	19.8	19.2

! Note: All figures in this table cover the period 2015-present.

Quality of Contact

Season	Weak %	Topped %	Under %	Flare/Burner %	Solid %	Barrel %	Barrel/PA
2024	5.1	24.2	31.8	25.0	5.9	8.1	5.0
2026	7.7	19.2	19.2	23.1	3.8	26.9	20.0
Player	5.3	23.7	30.5	24.8	5.7	9.9	6.2
MLB	4.1	32.2	25.0	24.4	5.9	7.6	4.9

! Note: All figures in this table cover the period 2015-present.

Similar Pitchers to DJ Herz:

2024 - Freddy Peralta

2024 - Spencer Arrighetti

2024 - Yuki Matsui

2024 - Ryan Pepiot

2024 - Sean Manaea

--- Compare All Similar Pitchers

How this works: This section shows two different ways to evaluate pitch movement. On the left, “Total Movement” shows the real-world movement of a pitch, including the forces of gravity, which affects every pitch thrown. Since gravity requires time, and slower pitches aren't 'better' just because they have more time to move, a pitch's movement is compared to other pitches of the same pitch type, within +/- 2 MPH and +/- 0.5 feet of extension/release. On the right, Induced Movement (or IVB) is reported without gravity, and attempts to isolate movement created by the pitcher's ability to spin and manipulate the ball.

						Total Movement (in inches, w/ gravity)				Induced Movement (in inches, w/o gravity)
Season	Pitch	Team	Hand	#	MPH	Vertical Drop	vs. Comparable	Horizontal Break	vs. Comparable	Vertical Break	vs. Avg	Horizontal Break	vs. Avg
2026	Curveball		L	3	79.6	37.0	-16.8	0.1GLV	-9.1	6.0	-16.1	0.1GLV	-8.0
2026	4-Seam Fastball		L	62	92.9	15.7	-0.2	12.4ARM	5.1	16.1	0.6	12.4ARM	4.5
2026	Changeup		L	38	82.4	34.1	0.1	15.9ARM	2.1	6.3	-1.5	15.9ARM	2.0
2026	Slider		L	25	87.8	25.1	-8.7	1.7ARM	-5.6	10.1	-8.5	1.7ARM	-6.1
2024	4-Seam Fastball		L	860	93.5	15.4	-0.1	12.4ARM	5.2	15.9	0.2	12.4ARM	4.3
2024	Slider		L	284	86.1	34.0	-1.0	0.2GLV	-4.2	3.0	-1.5	0.2GLV	-4.3
2024	Changeup		L	389	83.5	33.1	0.3	15.5ARM	1.8	6.1	-0.2	15.5ARM	1.4
2024	Curveball		L	53	81.2	43.7	-7.3	0.2GLV	-8.1	-2.3	-6.4	0.2GLV	-6.7

! Note: Seasons are in reverse order.

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Run Values by Pitch Type

Season	Pitch Type	RV/100	Run Value	Pitches	%	PA	BA	SLG	wOBA	Whiff%	K%	PutAway %	xBA	xSLG	xwOBA	Hard Hit %
2026	4-Seam Fastball	-5.9	-4	62	48.4	14	.286	.786	.439	30.3	28.6	25.0	.288	.784	.446	70.0
2026	Changeup	-5.6	-2	38	29.7	12	.400	.800	.538	20.0	8.3	7.7	.327	.698	.480	33.3
2026	Slider	-1.6	0	25	19.5	8	.286	.429	.356	7.7	12.5	16.7	.415	.829	.547	66.7
2026	Curveball	-21.2	-1	3	2.3	1	1.000	2.000	1.250	0.0	0.0	--	.409	.445	.369	0.0
2024	4-Seam Fastball	1.0	9	860	54.2	193	.222	.317	.302	30.5	32.1	22.7	.193	.335	.286	41.5
2024	Changeup	-0.9	-3	389	24.5	106	.224	.388	.299	26.0	21.7	15.6	.224	.369	.284	23.7
2024	Slider	-1.4	-4	284	17.9	78	.229	.429	.322	27.5	25.6	17.5	.203	.355	.289	34.0
2024	Curveball	1.5	1	53	3.3	5	.200	.200	.180	53.3	20.0	16.7	.420	.558	.421	75.0

! Note: Years are in reverse order.

! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.

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Spin Direction

Season	Pitch Type	Pitches	MPH	Active Spin %	Total Movement (In.)	Spin-Based	Observed	Deviation
2026	Changeup	38	82.4	88	17.5	9:15	9:30	-15
2026	4-Seam Fastball	62	92.9	99	20.2	10:45	10:45	0
2026	Slider	25	87.8	60	9.5	10:45	11:45	-60
2024	Changeup	386	83.6	92	17.1	9:30	9:30	0
2024	4-Seam Fastball	852	93.5	99	20.0	10:45	10:45	0
2024	Knuckle Curve	53	81.2	22	4.6	4:30	6:00	-90
2024	Slider	280	86.1	15	2.8	12:15	12:15	0

! Note: Years are in reverse order.

! Note: This table is showing data from the PITCHER perspective.

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Pitcher Arm Angle

! Note: Data is available from 2020 through the present.

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Statcast Pitching Run Value

				Runs
Season	Team	PA	Pitches	Heart	Shadow	Chase	Waste	All
2024		382	1,586	-1	21	-9	-8	2
2026		35	128	-1	-4	-1	-1	-7
Player		417	1,714	-2	16	-9	-2	-5

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Statcast Pitching Run Value (Leveraged)

These run values are leveraged, meaning the base/out situation at the time of the event does impact the run value (thus introducing context outside the batter's own contribution).

				Runs
Season	Team	PA	Pitches	Heart	Shadow	Chase	Waste	All	+/- Due To Leverage
2024		382	1,586	3	18	-8	-8	5	3
2026		35	128	-1	-3	0	-1	-5	2
Player		417	1,714	2	15	-8	2	1	5

Plate Discipline

Season	Pitches	Zone %	Zone Swing %	Zone Contact %	Chase %	Chase Contact %	Edge %	1st Pitch Strike %	Swing %	Whiff %	Meatball %	Meatball Swing %
2024	1,586	50.3	69.6	76.4	27.9	56.4	41.4	60.7	48.9	29.3	8.7	79.7
2026	128	50.0	75.0	83.3	29.7	63.2	38.3	60.0	52.3	22.4	8.6	81.8
Player	1,714	50.2	70.0	76.9	28.0	56.9	41.2	60.7	49.1	28.7	8.7	79.9
MLB		48.7	67.0	82.7	28.6	57.9	42.6	61.2	47.3	25.0	7.3	76.2

! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Season	Pitching	Fastball	Breaking	Off Speed	xERA	Fastball MPH	Fastball Spin	Curve Spin	Avg EV	Chase%	Whiff%	K%	BB%	Barrel%	Hard- Hit%	GB%	Extension
	Run Value				Pitching
2024	54	86	20	16	79	39	70	8	32	39	78	81	29	42	81	18	74
2026						25	55										82

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+ Compare To Other Players

Expected Home Runs

Adjusted

Season	Avg HR Trot	Actual HR	xHR	HR-xHR	Doubters	Mostly Gone	No Doubters	No Doubter %
2024	23.99	11	9.9	1	4	7	5	45.5
2026	24.98	3	2.9	0	1	1	2	66.7
Player	24.20	14	12.8	1	5	8	7	50.0

Note: xHR tells how many of this pitcher's batted balls allowed would have been out of other stadiums. The "Adjusted" view here accounts for different wall heights, distances and environmental effects using Statcast Park Factor data.

Standard

Season	Avg HR Trot	Actual HR	xHR	HR-xHR	Doubters	Mostly Gone	No Doubters	No Doubter %
2024	23.99	11	12.2	-1	2	8	7	63.6
2026	24.98	3	2.9	0	3	1	2	66.7
Player	24.20	14	15.1	-1	5	9	9	64.3

Note: xHR tells how many of this pitcher's batted balls allowed would have been out of other stadiums. The "Standard" view here accounts for different wall heights and distances but excludes environmental effects. It is based purely on the observed trajectory of the hit.

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Expected Home Runs by Park

Adjusted

Season	HR
2024	11	9	10	9	9	11	11	11	9	6	10	13	11	8	9	11	9	7	11	12	10	10	13	11	6	8	10	10	11	12	9
2026	3	3	2	4	3	3	3	3	2	3	2	2	3	4	3	4	3	3	3	3	3	3	3	3	3	3	3	2	3	3	3
Player	14	12	12	13	12	14	14	14	11	9	12	15	14	12	12	15	12	10	14	15	13	13	16	14	9	11	13	12	14	15	12

Standard

Season	HR
2024	11	11	12	12	11	13	14	14	11	8	11	14	14	13	14	12	11	10	15	14	13	15	15	14	9	9	11	8	14	12	11
2026	3	3	2	6	3	3	3	3	2	2	2	2	4	3	3	2	3	3	3	3	3	3	4	3	3	3	2	2	3	3	3
Player	14	14	14	18	14	16	17	17	13	10	13	16	18	16	17	14	14	13	18	17	16	18	19	17	12	12	13	10	17	15	14

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Statcast Fielder Positioning

				vs RHH			vs LHH
Season	Alignment Type	PA	wOBA	PA	Total	%	PA	Total	%
2024	Shades	382	.294	290	1	0.3	92	18	19.6
2026	Shades	35	.481	26	6	23.1	9	3	33.3

! Note: Shifts are through the 2022 season, Shaded starting from the 2023 season, Shift: three or more infielders are on the same side of second base, Shade: positioned outside of their typical responsible slices of the field.
Learn more about how positioning is defined here

Pitch Tempo

		Bases Empty				Runners On Base
Season	Team	Pitches	Tempo	Fast %	Slow %	Pitches	Tempo	Fast %	Slow %
2024		459	14.0	69.1%	0.0%	231	17.2	11.3%	1.3%
2026		28	13.8	67.9%	3.6%	25	16.7	24.0%	0.0%

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Pitch Distribution

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Statcast Fielding Breakdown

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Losses

AFL Rising Stars

EAS Pitcher of the Week

MID Post-Season All-Star

MiLB.com Organization All-Star

Baseball America High Class A All-Star

MID Pitcher of the Week

CAR Post-Season All-Star