Jhonathan Diaz

Bats L Throws L6'0" 170 lbBorn 1996 Valencia, VenezuelaDebut 2021Team SEAContract 1 y (26) 2026: $166,845

Projections

Season	BF	K%	BB%	HR%	1B%	XBH%	PITCH+
2026	123	17.3	6.9	2.89	21.8	6.70	97.2
2027							98.1
2028							97.7

Projected rates are per plate appearance or batter faced; counting stats scale with projected playing time. Statcast measurements inform these projections as inputs and are reported as measurements, not projected.

Most similar through age 28

His ten closest age-28 comparables averaged 99 PITCH+ the next season; 3 of 10 played. Averages cover only the players who got a next season, which is why the played count matters.

#	Player	Through	PITCH+ then	Next season	Next PA / BF
1	Evan Marshall	2018	81.9	108.8	209
2	Matt Maloney	2012	81.4	did not play
3	Janson Junk	2024	71.9	105.6	447
4	Fernando Cabrera	2010	91.4	did not play
5	Thomas Hatch	2023	89.5	did not play
6	Stephen Tarpley	2021	79.1	did not play
7	Yhency Brazoban	2008	90.5	did not play
8	Anthony Banda	2022	83.9	82.0	35
9	Josh Rupe	2011	89.9	did not play
10	Enrique Gonzalez	2011	97.3	did not play

Pitching

Year	Team	W	L	ERA	G	GS	SV	IP	BF	HR	BB	SO	PITCH+
2027 proj									123				98.1
2026*									0
2025	SEA	0	0	0.00	1	0	0	1.3	5	0	0	1	140.3	88.8	129.2
2024	SEA	0	1	4.66	5	1	0	9.7	47	2	3	8	67.2	100.5	67.7
2023	LAA	0	0	10.29	4	1	0	7.0	42	0	7	4	51.1	97.6	48.7
2022	LAA	1	1	2.93	4	3	0	15.3	66	1	10	11	94.5	98.8	93.3
2021	LAA	1	0	4.15	3	2	0	13.0	59	1	7	9	103.3	103.4	106.7
Career		2	2	4.66	17	7	0	46.3	219	4	27	33	83.7		83.7

Fielding

Year	Team	Pos	G	Inn	PO	A	DP	Fld%	Runs saved
2025	SEA	P	1	1	0	0	0		-0.1
2024	SEA	P	5	10	1	2	0	1.000	+0.0
2023	LAA	P	4	7	2	1	0	1.000	-0.1
2022	LAA	P	4	15	0	0	0		-0.1
2021	LAA	P	3	13	1	2	1	1.000	+0.2

Runs saved covers the Statcast era; for catchers it includes framing.

Minor leagues

Year	Level	Team	Side	PA / BF	Line	AVG / ERA
2026	AAA	Tacoma Rainiers	Pit	504	111.1 IP, 16% K	6.24
2025	AAA	Tacoma Rainiers	Pit	586	138.2 IP, 20% K	4.17
2024	AAA	Tacoma Rainiers	Pit	524	117.2 IP, 23% K	4.38
2023	AAA	Salt Lake Bees	Pit	375	87.0 IP, 21% K	4.55
2022	AAA	Salt Lake Bees	Pit	207	47.0 IP, 22% K	4.98
2021	AAA	Salt Lake Bees	Pit	72	15.1 IP, 19% K	4.17
2021	AA	Rocket City Trash Pandas	Pit	251	61.0 IP, 31% K	3.98
2019	A+	Salem Red Sox	Pit	562	128.1 IP, 21% K	3.86
2018	A+	Salem Red Sox	Pit	23	4.1 IP, 17% K	6.59
2018	A	Greenville Drive	Pit	617	153.0 IP, 24% K	3.00
2017	A	Greenville Drive	Pit	389	88.2 IP, 21% K	4.59
2016	Rk	GCL Red Sox	Pit	247	60.0 IP, 23% K	2.85
2014	Rk	DSL Red Sox	Pit	257	66.1 IP, 21% K	1.63

Splits

Year	vs LHP	vs RHP	Home	Away
2025	0.450	0.000	0.180
2024	0.310	0.487	0.426	0.312
2023	0.407	0.534	0.682	0.362
2022	0.192	0.356	0.400	0.257
2021	0.225	0.401	0.269	0.448

wOBA by split, from pitch level data, 2015 on. For pitchers the split is the batter side faced.