Seattle Mariners · LHP

#: 74
Team: SEA · P
Debut: 2021 · 6 MLB seasons

Jhonathan Díaz

Age 29

Size 6' 0" · 170

Throws LHP

Bats Left

From Valencia, Venezuela

Team profile →Rotation →

6.75

ERA

1.50

WHIP

6.8

K/9

0.0

BB/9

1.1

Innings

Starts

Jhonathan Díaz season snapshot

ERA

6.75

WHIP

1.50

K/9

6.8

BB/9

0.0

HR/9

6.75

1.1

ERA in last 10 starts

No start data available.

Game log (last 10 starts)

Date	Opp	Result	IP	H	R	ER	BB	K	HR	Pitches	ERA

2026 season · last 10 starts

Pitch arsenal (2026)

Usage %Velocity

Sinker

60.0%

88.7 mph

Sweeper

28.0%

79.8 mph

Changeup

8.0%

80.9 mph

Curveball

4.0%

73.9 mph

Hot / cold zones (vs RHB)

.000

.667

.000

Better than
MLB avg

Similar to
MLB avg

Worse than
MLB avg

Performance vs teams (2026)

TeamGSERA

Brewers1

6.75

Monthly ERA (2026)

No monthly data for ERA.

Minimum 1 GS

More pitchers

Browse more MLB starting pitcher profiles with season stats, ERA, and matchup history.

Scott Barlow6.48 ERA · Athletics Cristian Javier6.44 ERA · Houston Astros Michael Lorenzen7.08 ERA · Colorado Rockies Andrew Painter6.43 ERA · Philadelphia Phillies Mason Barnett7.08 ERA · Athletics Zac Gallen6.34 ERA · Arizona Diamondbacks