Jonathan Hernández

Relief Pitcher

Seattle Mariners

Bats / Throws	Right / Right
Date of Birth	7/6/1996 (28)
Height, Weight	6'3", 190 lb
Hometown	Memphis, TN

2024 Season Stats

MLB Rank MLB Average

	Sv	IP	ERA	WHIP	K%	BB%
	0	41.0	4.61	1.54	21.8%	15.1%

	197^th 3 Sv	200^th 45 IP	251^st 4.00 ERA	296^th 1.28 WHIP	211^th 23.7% K%	335^th 9.1% BB%

	FB MPH	SwStr%	CSW%	Str-ICR	MTK%	PLV	PLA
	96.8	14.6%	29.1%	-	5.4%	5.02	3.82

	32^nd 94.6 FB MPH	80^th 12.7% SwStr%	180^th 29.2% CSW%	- Str-ICR	153^rd - MTK%	251^st 5.13 PLV	271^st - PLA

Articles

7/29/2024Fantasy Baseball SP Roundup: A River of HopeNick Pollack

7/6/2024Fantasy Baseball Relief Pitcher Rankings - 7/6/24 Depth ChartJustin Havelock

7/5/2024Fantasy Baseball Relief Pitcher Rankings - 7/5/24 Depth ChartJosh Mockensturm

7/4/2024Fantasy Baseball Relief Pitcher Rankings - 7/4/24 Depth ChartJustin Perri

7/3/2024Fantasy Baseball Relief Pitcher Rankings - 7/3/24 Depth ChartPatrick Fitzgerald

See More Articles

Stats Glossary

Overview

Hide 2024 MLB Percentile | Hide 2024 MLB Average

Year	Team	G	GS	IP	W-L	Sv	Hld	ERA	WHIP	xERA	FIP	xFIP	PLA	K%	BB%	H/9	HR/9	BABIP	HR/FB%	LOB%	ICR	GB%	SwStr%	CSW%	IPR	PLV
2019	TEX	9	2	16.2	2-1	0	1	4.32	1.62	-	5.68	-	-	24.4%	16.7%	7.6	1.62	.256	-	74.6%	-	-	13.0%	28.6%	0.39	-
2020	TEX	27	0	31.0	5-1	0	5	2.90	1.03	3.06	3.19	4.34	3.50	24.8%	6.4%	7.0	0.58	.278	6.7%	78.3%	29.3%	50.0%	14.9%	32.2%	0.55	5.15
2022	TEX	29	0	30.1	2-3	4	3	2.97	1.42	3.65	3.98	3.88	3.68	20.6%	13.0%	7.7	0.59	.289	14.3%	72.8%	34.9%	64.0%	13.5%	28.4%	0.42	4.98
2023	TEX	33	0	31.2	1-2	0	10	5.40	1.58	4.61	4.57	4.32	4.48	23.1%	10.2%	9.9	1.14	.348	16.7%	70.2%	37.2%	54.3%	13.2%	30.7%	0.51	4.89
2024	SEA/TEX	29	1	43.1	3-1	0	0	5.40	1.59	5.25	5.19	4.67	3.82	20.3%	14.6%	8.5	1.25	.299	18.2%	68.2%	35.5%	50.8%	14.0%	28.1%	0.45	5.01
RP MLB Percentile		33	0	42	52-82	0	0	27	14	16	25	30	21	38	3	49	58	42	28	38	64	82	77	47	-	25
RP MLB AVG		41	0	45.0	3-2	3	7	4.00	1.28	4.11	4.05	4.01	3.18	23.7%	9.1%	8.0	1.07	.288	12.5%	72.5%	36.8%	44.8%	12.7%	29.2%	0.53	5.13
Career		127	3	153.0	13-8	4	19	4.29	1.44	-	-	-	3.45	22.3%	12.0%	8.2	1.00	.299	16.8%	71.9%	30.8%	54.4%	13.8%	29.5%	0.47	5.00

Repertoire

Slider | 49%
Sinker | 39%
Changeup | 12%
Cutter | 0%
Four-Seamer | 0%
All

2019 2020 2022 2023 2024 All

Hide 2024 MLB Percentile | Hide 2024 MLB Average

Year	Usage%	MPH	Zone%	O-Sw%	Str%	SwStr%	CS%	CSW%	Str-ICR	GB%	FB%	ICR	HR/FB%	AVG	BABIP	HL	HP	MTK%	PLV
2019	31.9%	88.4	-	-	50.0%	19.8%	8.5%	28.3%	-	-	-	-	-	.125	.222	-	-	-	-
2020	41.5%	89.2	32.0%	35.0%	56.3%	21.4%	11.2%	32.5%	49.5%	40.7%	40.7%	25.9%	0.0%	.167	.296	0	-1.9	7.8%	5.11
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	38.9%	87.5	30.2%	28.8%	56.3%	19.6%	15.6%	35.2%	51.3%	59.1%	22.7%	22.7%	0.0%	.086	.136	-3	-3.7	5.5%	4.93
2023	43.8%	87.3	37.2%	32.2%	61.2%	19.8%	15.3%	35.1%	50.4%	48.6%	25.7%	37.1%	11.1%	.218	.324	+0	-0.8	6.2%	5.07
2024	49.2%	87.7	37.3%	34.0%	61.1%	18.4%	14.4%	32.8%	51.5%	44.4%	37.0%	33.3%	10.0%	.205	.255	+0	3.3	5.3%	5.26
RP MLB Percentile	89	78	25	58	35	72	49	65	39	68	36	73	64	62	49	71	39	63	55
RP MLB AVG	30.0%	85.5	41.6%	32.1%	62.1%	15.5%	14.8%	30.3%	50.0%	41.6%	36.9%	38.0%	13.3%	.236	.295	+1	1.1	6.8%	5.20

Year	xAVG	xwOBA	xBABIP	xwoBACON	HH%	Brl%	ICR	EV	FB EV	LA	xMov	yMov	xRP	yRP	Ext	Spin
2019	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	.133	.176	.236	.253	-	0.0%	25.9%	85.8	83.9	13.3	-1.4	3.1	-1.3	5.4	6.3	2,357
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	.142	.182	.226	.219	-	0.0%	22.7%	87.4	88.2	2.8	-1.0	0.8	-1.4	5.4	6.3	2,460
2023	.173	.242	.256	.295	-	5.7%	37.1%	85.8	82.3	12.4	-2.0	0.9	-1.3	5.3	6.5	2,443
2024	.211	.256	.269	.315	-	5.6%	33.3%	86.2	89.8	9.9	-2.1	1.7	-1.5	5.4	6.3	2,475
RP MLB Percentile	58	69	41	72	-	68	73	61	41	76	48	61	50	20	33	58
RP MLB AVG	.226	.298	.276	.373	-	7.3%	38.0%	86.7	86.6	14.7	-2.5	1.1	-0.9	5.6	6.4	2,429

Year	P	TBF	Strikes	Balls	1B	2B	3B	HR	H	TB	TIC	K	BB	HBP
2019	106	18	53	53	2	0	0	0	2	2	0	7	2	0
2020	206	51	116	90	6	1	1	0	8	9	7	21	1	2
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	199	38	112	87	2	1	0	0	3	3	5	13	2	1
2023	242	63	148	94	10	1	0	1	12	14	13	21	5	2
2024	375	81	229	146	10	2	1	2	15	20	18	22	5	0
RP MLB Percentile	88	81	86	9	13	26	1	58	20	-	-	79	15	28
RP MLB AVG	165	42	104	61	5	2	0	1	8	10	9	12	3	0

Year	GB%	LD%	FB%	PU%	Pull%	Cent%	Oppo%	Fl&B%	Solid%	Brl%	SS%	HH%	PC%	ICR
2019	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	40.7%	18.5%	40.7%	18.5%	48.1%	29.6%	22.2%	25.9%	0.0%	0.0%	25.9%	-	74.0%	25.9%
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	59.1%	18.2%	22.7%	0.0%	40.9%	40.9%	18.2%	13.6%	9.1%	0.0%	22.7%	-	77.3%	22.7%
2023	48.6%	25.7%	25.7%	14.3%	51.4%	34.3%	14.3%	25.7%	5.7%	5.7%	31.4%	-	62.8%	37.1%
2024	44.4%	18.5%	37.0%	3.7%	46.3%	42.6%	11.1%	20.4%	7.4%	5.6%	35.2%	-	66.7%	33.3%
RP MLB Percentile	68	56	36	31	45	83	19	58	33	68	61	-	-	73
RP MLB AVG	41.6%	21.7%	36.9%	9.9%	48.1%	31.7%	20.2%	23.9%	5.7%	7.3%	35.6%	-	63.2%	38.0%

Year	AVG	wOBA	BABIP	BACON	HL	xAVG	xwOBA	xBABIP	xwoBACON	EV	FB EV	LA	HR/FB%
2019	.125	.173	.222	.222	-	-	-	-	-	-	-	-	-
2020	.167	.201	.296	.296	0	.133	.176	.236	.253	85.8	83.9	13.3	0.0
2021	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	.086	.135	.136	.136	-3	.142	.182	.226	.219	87.4	88.2	2.8	0.0
2023	.218	.270	.324	.343	+0	.173	.242	.256	.295	85.8	82.3	12.4	11.1
2024	.205	.256	.255	.283	+0	.211	.256	.269	.315	86.2	89.8	9.9	10.0
RP MLB Percentile	62	73	49	63	71	58	69	41	72	61	41	76	64
RP MLB AVG	.236	.302	.295	.330	+1	.226	.298	.276	.373	86.7	86.6	14.7	13.3

Year	Zone%	Str%	Swing%	O-Sw%	Whiff%	Foul Str%	Con%	Z-Con%	O-Con%	CS%	SwStr%	CSW%	SIP%	BIP%	PLUS%	IPR	Str-ICR
2019	-	50.0%	41.5%	-	47.7%	13.2%	52.3%	-	-	8.5%	19.8%	28.3%	17.0%	8.5%	48.1%	0.40	-
2020	32.0%	56.3%	45.1%	35.0%	47.3%	10.7%	52.7%	77.3%	30.6%	11.2%	21.4%	32.5%	23.3%	13.1%	52.4%	0.52	49.5%
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	30.2%	56.3%	40.7%	28.8%	48.1%	10.1%	51.9%	70.7%	32.5%	15.6%	19.6%	35.2%	19.6%	11.1%	54.8%	0.61	51.3%
2023	37.2%	61.2%	45.9%	32.2%	43.2%	11.6%	56.8%	77.4%	30.6%	15.3%	19.8%	35.1%	23.6%	14.5%	56.2%	0.64	50.4%
2024	37.3%	61.1%	46.7%	34.0%	39.4%	13.9%	60.6%	73.7%	45.0%	14.4%	18.4%	32.8%	23.6%	14.4%	57.1%	0.59	51.5%
RP MLB Percentile	25	35	42	58	78	38	78	88	50	49	72	65	75	76	44	36	39
RP MLB AVG	41.6%	62.1%	47.3%	32.1%	32.8%	15.6%	67.2%	82.4%	44.8%	14.8%	15.5%	30.3%	-	-	56.9%	0.52	-

Year	Zone%	aLoc%	x-mLoc%	gLoc%	hiLoc%	y-mLoc%	loLoc%	iLoc%	oLoc%	mmLoc%
2019	-	-	-	-	-	-	-	-	-	-
2020	32.0%	12.6%	20.4%	67.0%	15.0%	19.4%	65.5%	30.1%	49.5%	3.4%
2021	-	-	-	-	-	-	-	-	-	-
2022	30.2%	11.1%	18.6%	70.4%	5.0%	14.6%	80.4%	16.6%	64.8%	5.0%
2023	37.2%	16.1%	17.8%	66.1%	10.3%	23.1%	66.5%	19.8%	62.4%	4.5%
2024	37.3%	19.2%	23.7%	57.1%	6.1%	18.7%	75.2%	14.4%	61.9%	5.6%
RP MLB Percentile	25	45	56	53	9	28	88	9	84	43
RP MLB AVG	41.6%	20.0%	22.4%	57.7%	16.1%	21.5%	62.3%	25.3%	52.4%	6.2%

Year	Early%	Behind%	2-Str%	Early BIP%	F-Str%	TF-Str%	ECS%	2-Str O Sw%	PAR%
2019	61.3%	5.7%	33.0%	6.2%	37.5%	37.5%	13.8%	-	20.0%
2020	63.6%	3.9%	32.5%	6.9%	48.9%	42.6%	14.5%	34.3%	31.3%
2021	-	-	-	-	-	-	-	-	-
2022	65.8%	4.0%	30.2%	7.6%	56.1%	54.4%	20.6%	26.7%	21.7%
2023	62.4%	5.4%	32.2%	13.2%	64.8%	59.2%	20.5%	26.9%	26.9%
2024	62.7%	6.7%	30.7%	12.3%	51.9%	47.2%	20.4%	35.7%	19.1%
RP MLB Percentile	65	56	41	30	23	41	54	82	43
RP MLB AVG	59.0%	8.2%	32.8%	13.6%	59.7%	49.9%	20.2%	26.9%	20.2%

Year	MPH	Ext	iHB	iVB	Total Break	VAA	Height Adj. VAA	Spin	PLV
2019	88.4	-	-	-	-	-	-	-	-
2020	89.2	6.3	-2.7	3.2	6.7	-7.0	0.3	2,357	5.11
2021	-	-	-	-	-	-	-	-	-
2022	87.5	6.3	-2.1	-0.5	8.5	-7.7	0.0	2,460	4.93
2023	87.3	6.5	-4.7	-0.3	5.1	-7.3	0.0	2,443	5.07
2024	87.7	6.3	-5.0	1.1	5.7	-7.3	0.1	2,475	5.26
RP MLB Percentile	78	33	49	61	38	70	85	58	55
RP MLB AVG	85.5	6.4	-	-	-	-	-	2,429	5.20

Year	P	PLV	PLA	QP%	AP%	BP%	Q-BP%	HP	HL
2019	106	-	-	-	-	-	-	-	-
2020	206	5.11	3.63	43.2%	20.4%	36.4%	6.8%	-1.9	0
2021	-	-	-	-	-	-	-	-	-
2022	199	4.93	3.83	36.7%	23.6%	39.7%	-3.0%	-3.7	-3
2023	242	5.07	3.90	44.2%	20.7%	35.1%	9.1%	-0.8	+0
2024	375	5.26	2.99	46.7%	18.9%	34.4%	12.3%	3.3	+0
RP MLB Percentile	88	55	-	38	55	39	39	39	71
RP MLB AVG	165	5.20	0.63	47.4%	18.5%	34.0%	13.4%	1.1	+1

Year	Usage%	MPH	Zone%	O-Sw%	Str%	SwStr%	CS%	CSW%	Str-ICR	GB%	FB%	ICR	HR/FB%	AVG	BABIP	HL	HP	MTK%	PLV
2019	38.0%	96.8	-	-	54.8%	7.1%	17.5%	24.6%	-	-	-