BIGLEAGUE

Seattle Mariners · Pitcher · #31 · Minors

Jhonathan Díaz

Age 306' 0" · 170lbBats L · Throws LDebut 2021From Valencia

ERA

6.75

W-L

0-0

K

1

WHIP

1.50

WAR

-0.1

FIP

11.35

League Percentile

2026 season · percentile vs 46 qualified pitchers
ERA
0
6.75
WHIP
0
1.50
Strikeouts
0
1
K/9
11
6.75
Wins
0
0
Bottom of leagueAverage (50)Top of league

⚠ Below the qualified innings threshold. Percentiles are for reference only.

the entire league · by ERA

Top 100%

Jhonathan Díaz's ERA (6.75) ranks below average among 46 qualified pitchers. The number on each bar is a percentile (higher is better); use the tabs to change the comparison pool.

PITCHING

Season · Career
CategoryGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2026 Season16.750001.1101.50
Career184.7222047.234271.70

Hover over a stat for its definition.

ARSENAL

Pitch arsenal · 2026 usage and average velocity
Sinker60.0%avg 143 km/h
Sweeper28.0%avg 128 km/h
Changeup8.0%avg 130 km/h
Curveball4.0%avg 119 km/h

ADVANCED

Advanced metrics · 2026 season

BABIP

.250

K/9

6.75

BB/9

0.00

HR/9

6.75

Quality starts

0

Whiff%

0.0%

GAME LOG

Last 1 game · includes team result
DateOppInningsHitsERWalksStrikeoutsTeam
08.20@ MIL1.12101L

SPLITS

Situational splits (2026)

Away

Opp AVG.333
IP1.1
K1
WHIP1.50

vs LHP

Opp AVG.500
IP0.2
K0
WHIP3.00

vs RHP

Opp AVG.000
IP0.2
K1
WHIP0.00

YEAR BY YEAR

Year-by-year · Career trends

ERALower is better

▲ Trending down year over year
ERA by yearFrom 4.15 in 2021 to 6.75 in 2026. Lower is better for this stat.2021 ERA: 4.154.1520212022 ERA: 2.9320222023 ERA: 10.2910.2920232024 ERA: 4.6620242025 ERA: 0.000.0020252026 ERA: 6.756.752026
Show yearly figures
ERA year-by-year details
YearERA
20214.15
20222.93
202310.29
20244.66
20250.00
20266.75

WHIPLower is better

▲ Trending down year over year
WHIP by yearFrom 1.38 in 2021 to 1.50 in 2026. Lower is better for this stat.2021 WHIP: 1.381.3820212022 WHIP: 1.5020222023 WHIP: 2.862.8620232024 WHIP: 1.7620242025 WHIP: 0.750.7520252026 WHIP: 1.501.502026
Show yearly figures
WHIP year-by-year details
YearWHIP
20211.38
20221.50
20232.86
20241.76
20250.75
20261.50

Strikeouts

Strikeouts by yearFrom 9 in 2021 to 1 in 2026.2021 Strikeouts: 9920212022 Strikeouts: 111120222023 Strikeouts: 420232024 Strikeouts: 820242025 Strikeouts: 1120252026 Strikeouts: 112026
Show yearly figures
Strikeouts year-by-year details
YearStrikeouts
20219
202211
20234
20248
20251
20261
YearTeamGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2021LAA34.1510013.0971.38
2022LAA42.9311015.111101.50
2023LAA410.290007.0472.86
2024SEA54.660109.2831.76
2025SEA10.000001.1100.75
2026SEA16.750001.1101.50