Jhonathan Díaz

Position: Starting Pitcher

Bats: Left • Throws: Left

6-0, 170lb (183cm, 77kg)

Team: Seattle Mariners (minors)

Born: September 13, 1996 in Valencia, Venezuela ve

Rookie Status: Exceeded rookie limits during 2024 season

2026 Contract Status: Pre-Arb Eligible

Service Time (01/2026): 0.128 • Arb Eligible: 2029 • Free Agent: 2032

Full Name: Jhonathan Alexander Díaz

View Player Info from the B-R Bullpen

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SUMMARY

Career

WAR

0.1

ERA

4.66

46.1

WHIP

1.705

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Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
2014	17	-1.9	Red Sox	DOSL	FRk	BOS	6	2	.750	1.63	2.04	14	14	0	0	0	0	66.1	46	15	12	1	16	0	54	3	0	8	257	0.935	6.2	0.1	2.2	7.3	3.38

2016	19	-1.6	Red Sox	GULF	Rk	BOS	4	4	.500	2.85	4.20	13	12	0	0	0	0	60.0	52	28	19	2	18	0	57	4	0	5	247	1.167	7.8	0.3	2.7	8.6	3.17
2017	20	-1.9	Greenville	SALL	A	BOS	6	6	.500	4.57	5.79	18	18	0	0	0	0	88.2	101	57	45	4	28	0	80	8	0	4	389	1.455	10.3	0.4	2.8	8.1	2.86
2018	21		2 Teams	2 Lgs	A-A+	BOS	11	9	.550	3.09	3.60	27	27	0	1	0	0	157.1	130	63	54	7	41	0	151	17	0	12	640	1.087	7.4	0.4	2.3	8.6	3.68
2018	21	-2.1	Salem	CARL	A+	BOS	0	1	.000	6.23	6.23	1	1	0	0	0	0	4.1	7	3	3	1	2	0	4	1	0	0	23	2.077	14.5	2.1	4.2	8.3	2.00
2018	21	-0.9	Greenville	SALL	A	BOS	11	8	.579	3.00	3.53	26	26	0	1	0	0	153.0	123	60	51	6	39	0	147	16	0	12	617	1.059	7.2	0.4	2.3	8.6	3.77
2019	22	-1.2	Salem	CARL	A+	BOS	9	8	.529	3.86	4.42	27	27	0	0	0	0	128.1	121	63	55	6	54	0	118	19	0	10	562	1.364	8.5	0.4	3.8	8.3	2.19
2019	22	-1.2	Peoria	AZFL	Fal		0	0		4.35	4.35	8	0	1	0	0	0	10.1	11	5	5	0	6	0	16	2	0	2	49	1.645	9.6	0.0	5.2	13.9	2.67

2021	24		2 Teams	2 Lgs	AA-AAA	LAA	5	6	.455	4.01	4.01	16	12	1	1	0	0	76.1	65	34	34	5	20	0	92	17	0	3	323	1.114	7.7	0.6	2.4	10.8	4.60
2021	24	-3.4	Salt Lake	AAAW	AAA	LAA	0	3	.000	4.11	4.11	3	3	0	0	0	0	15.1	15	7	7	0	8	0	14	4	0	0	72	1.500	8.8	0.0	4.7	8.2	1.75
2021	24	-0.6	Rocket City	AASO	AA	LAA	5	3	.625	3.98	3.98	13	9	1	1	0	0	61.0	50	27	27	5	12	0	78	13	0	3	251	1.016	7.4	0.7	1.8	11.5	6.50
2021	24	-4.5	LAA	AL	Maj	LAA	1	0	1.000	4.15	4.15	3	2	1	0	0	0	13.0	11	6	6	1	7	0	9	1	0	0	59	1.385	7.6	0.7	4.8	6.2	1.29
2021-22	24	-4.5	Caracas	VEWL	FgW		1	0	1.000	7.45	7.91	7	5	0	0	0	0	19.1	22	17	16	0	15	0	7	1	0	1	91	1.914	10.2	0.0	7.0	3.3	0.47
2022	25	-2.2	Salt Lake	PCL	AAA	LAA	3	1	.750	4.98	5.36	10	10	0	0	0	0	47.0	44	28	26	4	20	0	46	6	0	0	207	1.362	8.4	0.8	3.8	8.8	2.30
2022	25	-3.4	LAA	AL	Maj	LAA	1	1	.500	2.93	2.93	4	3	1	0	0	0	15.1	13	5	5	1	10	0	11	0	0	0	66	1.500	7.6	0.6	5.9	6.5	1.10
2023	26	-1.3	Salt Lake	PCL	AAA	LAA	9	2	.818	4.55	5.17	38	8	7	0	0	1	87.0	82	50	44	10	43	0	79	4	0	1	375	1.437	8.5	1.0	4.4	8.2	1.84
2023	26	-2.7	LAA	AL	Maj	LAA	0	0		10.29	14.14	4	1	2	0	0	0	7.0	13	11	8	0	7	0	4	2	0	0	42	2.857	16.7	0.0	9.0	5.1	0.57
2024	27	-0.5	Tacoma	PCL	AAA	SEA	9	3	.750	4.36	4.74	23	22	0	0	0	0	117.2	121	62	57	9	52	0	120	13	0	3	524	1.470	9.3	0.7	4.0	9.2	2.31
2024	27	-2.0	SEA	AL	Maj	SEA	0	1	.000	4.66	5.59	5	1	3	0	0	0	9.2	14	6	5	2	3	0	8	0	0	0	47	1.759	13.0	1.9	2.8	7.4	2.67
2024-25	27	-1.6	Santurce	PRWL	FgW		4	0	1.000	0.49	0.74	6	6	0	0	0	0	36.2	16	3	2	0	7	0	26	2	0	0	130	0.627	3.9	0.0	1.7	6.4	3.71
2025	28	0.9	Tacoma	PCL	AAA	SEA	11	6	.647	4.15	4.41	27	26	0	0	0	0	138.2	159	68	64	18	24	0	116	7	1	3	586	1.320	10.3	1.2	1.6	7.5	4.83
2025	28	-1.2	SEA	AL	Maj	SEA	0	0		0.00	0.00	1	0	1	0	0	0	1.1	1	0	0	0	0	0	1	0	0	0	5	0.750	6.8	0.0	0.0	6.8
2026	29	1.3	Tacoma	PCL	AAA	SEA	6	6	.500	5.82	6.56	19	18	0	0	0	0	85.0	98	62	55	13	32	0	67	4	1	2	384	1.529	10.4	1.4	3.4	7.1	2.09
Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
Majors (5 seasons)					Majors		2	2	.500	4.66	5.44	17	7	8	0	0	0	46.1	52	28	24	4	27	0	33	3	0	0	219	1.705	10.1	0.8	5.2	6.4	1.22
Minors (11 seasons)					Minors		79	53	.598	3.98	4.53	232	194	8	2	0	1	1052.1	1019	530	465	79	348	0	980	102	2	51	4494	1.299	8.7	0.7	3.0	8.4	2.82
Foreign (2 seasons)					Foreign		5	0	1.000	2.89	3.21	13	11	0	0	0	0	56.0	38	20	18	0	22	0	33	3	0	1	221	1.071	6.1	0.0	3.5	5.3	1.50
Other (1 season)					Other		0	0		4.35	4.35	8	0	1	0	0	0	10.1	11	5	5	0	6	0	16	2	0	2	49	1.645	9.6	0.0	5.2	13.9	2.67
All Levels (11 Seasons)							86	55	.610	3.96	4.50	270	212	17	2	0	1	1165.0	1120	583	512	83	403	0	1062	110	2	54	4983	1.307	8.7	0.6	3.1	8.2	2.64

AAA (6 seasons)					Minors		38	21	.644	4.64	5.08	120	87	7	0	0	1	490.2	519	277	253	54	179	0	442	38	2	9	2148	1.423	9.5	1.0	3.3	8.1	2.47
AA (1 season)					Minors		5	3	.625	3.98	3.98	13	9	1	1	0	0	61.0	50	27	27	5	12	0	78	13	0	3	251	1.016	7.4	0.7	1.8	11.5	6.50
A+ (2 seasons)					Minors		9	9	.500	3.93	4.48	28	28	0	0	0	0	132.2	128	66	58	7	56	0	122	20	0	10	585	1.387	8.7	0.5	3.8	8.3	2.18
A (2 seasons)					Minors		17	14	.548	3.58	4.36	44	44	0	1	0	0	241.2	224	117	96	10	67	0	227	24	0	16	1006	1.204	8.3	0.4	2.5	8.5	3.39
Rk (1 season)					Minors		4	4	.500	2.85	4.20	13	12	0	0	0	0	60.0	52	28	19	2	18	0	57	4	0	5	247	1.167	7.8	0.3	2.7	8.6	3.17
FRk (1 season)					Minors		6	2	.750	1.63	2.04	14	14	0	0	0	0	66.1	46	15	12	1	16	0	54	3	0	8	257	0.935	6.2	0.1	2.2	7.3	3.38