Jhonathan Alexander Díaz (born September 13, 1996) is a Venezuelan professional baseball pitcher for the Seattle Mariners of Major League Baseball (MLB). He has previously played in MLB for the Los Angeles Angels. Díaz signed with the Boston Red Sox as an international free agent in 2013.
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| SO9 | MLB | 2025 | 6.8 |
| BB9 | MLB | 2025 | 0.0 |
| HR9 | MLB | 2025 | 0.0 |
| H9 | MLB | 2025 | 6.8 |
| WHIP | MLB | 2025 | 0.750 |
| Fielding Independent Pitching | MLB | 2025 | 1.64 |
| Batters Faced | MLB | 2025 | 5 |
| Wild Pitches | MLB | 2025 | 0 |
| Balks | MLB | 2025 | 0 |
| Times Hit by a Pitch | MLB | 2025 | 0 |
| Strikeouts | MLB | 2025 | 1 |
| Intentional Bases on Balls | MLB | 2025 | 0 |
| Bases on Balls/Walks | MLB | 2025 | 0 |
| Home Runs Allowed | MLB | 2025 | 0 |
| Earned Runs Allowed | MLB | 2025 | 0 |
| Runs Allowed | MLB | 2025 | 0 |
| Hits Allowed | MLB | 2025 | 1 |
| Innings Pitched | MLB | 2025 | 1.1 |
| Saves | MLB | 2025 | 0 |
| Shutouts | MLB | 2025 | 0 |
| Complete Games | MLB | 2025 | 0 |
| Games Finished | MLB | 2025 | 1 |
| Games Started | MLB | 2025 | 0 |
| Games Pitched | MLB | 2025 | 1 |
| ERA | MLB | 2025 | 0.00 |
| Loss | MLB | 2025 | 0 |
| Wins | MLB | 2025 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2025 | 0.0 |
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| SO/BB | MLB | 2024 | 2.67 |
| SO9 | MLB | 2024 | 7.4 |
| BB9 | MLB | 2024 | 2.8 |
| HR9 | MLB | 2024 | 1.9 |
| H9 | MLB | 2024 | 13.0 |
| WHIP | MLB | 2024 | 1.759 |
| Fielding Independent Pitching | MLB | 2024 | 5.13 |
| ERA+ | MLB | 2024 | 83 |
| Batters Faced | MLB | 2024 | 47 |
| Wild Pitches | MLB | 2024 | 0 |
| Balks | MLB | 2024 | 0 |
| Times Hit by a Pitch | MLB | 2024 | 0 |
| Strikeouts | MLB | 2024 | 8 |
| Intentional Bases on Balls | MLB | 2024 | 0 |
| Bases on Balls/Walks | MLB | 2024 | 3 |
| Home Runs Allowed | MLB | 2024 | 2 |
| Earned Runs Allowed | MLB | 2024 | 5 |
| Runs Allowed | MLB | 2024 | 6 |
| Hits Allowed | MLB | 2024 | 14 |
| Innings Pitched | MLB | 2024 | 9.2 |
| Saves | MLB | 2024 | 0 |
| Shutouts | MLB | 2024 | 0 |
| Complete Games | MLB | 2024 | 0 |
| Games Finished | MLB | 2024 | 3 |
| Games Started | MLB | 2024 | 1 |
| Games Pitched | MLB | 2024 | 5 |
| ERA | MLB | 2024 | 4.66 |
| Win-Loss Percentage | MLB | 2024 | .000 |
| Loss | MLB | 2024 | 1 |
| Wins | MLB | 2024 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2024 | -0.1 |
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| SO/BB | MLB | 2023 | 0.57 |
| SO9 | MLB | 2023 | 5.1 |
| BB9 | MLB | 2023 | 9.0 |
| HR9 | MLB | 2023 | 0.0 |
| H9 | MLB | 2023 | 16.7 |
| WHIP | MLB | 2023 | 2.857 |
| Fielding Independent Pitching | MLB | 2023 | 5.97 |
| ERA+ | MLB | 2023 | 45 |
| Batters Faced | MLB | 2023 | 42 |
| Wild Pitches | MLB | 2023 | 0 |
| Balks | MLB | 2023 | 0 |
| Times Hit by a Pitch | MLB | 2023 | 2 |
| Strikeouts | MLB | 2023 | 4 |
| Intentional Bases on Balls | MLB | 2023 | 0 |
| Bases on Balls/Walks | MLB | 2023 | 7 |
| Home Runs Allowed | MLB | 2023 | 0 |
| Earned Runs Allowed | MLB | 2023 | 8 |
| Runs Allowed | MLB | 2023 | 11 |
| Hits Allowed | MLB | 2023 | 13 |
| Innings Pitched | MLB | 2023 | 7.0 |
| Saves | MLB | 2023 | 0 |
| Shutouts | MLB | 2023 | 0 |
| Complete Games | MLB | 2023 | 0 |
| Games Finished | MLB | 2023 | 2 |
| Games Started | MLB | 2023 | 1 |
| Games Pitched | MLB | 2023 | 4 |
| ERA | MLB | 2023 | 10.29 |
| Loss | MLB | 2023 | 0 |
| Wins | MLB | 2023 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2023 | -0.4 |
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| SO/BB | MLB | 2022 | 1.10 |
| SO9 | MLB | 2022 | 6.5 |
| BB9 | MLB | 2022 | 5.9 |
| HR9 | MLB | 2022 | 0.6 |
| H9 | MLB | 2022 | 7.6 |
| WHIP | MLB | 2022 | 1.500 |
| Fielding Independent Pitching | MLB | 2022 | 4.48 |
| ERA+ | MLB | 2022 | 140 |
| Batters Faced | MLB | 2022 | 66 |
| Wild Pitches | MLB | 2022 | 0 |
| Balks | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 0 |
| Strikeouts | MLB | 2022 | 11 |
| Intentional Bases on Balls | MLB | 2022 | 0 |
| Bases on Balls/Walks | MLB | 2022 | 10 |
| Home Runs Allowed | MLB | 2022 | 1 |
| Earned Runs Allowed | MLB | 2022 | 5 |
| Runs Allowed | MLB | 2022 | 5 |
| Hits Allowed | MLB | 2022 | 13 |
| Innings Pitched | MLB | 2022 | 15.1 |
| Saves | MLB | 2022 | 0 |
| Shutouts | MLB | 2022 | 0 |
| Complete Games | MLB | 2022 | 0 |
| Games Finished | MLB | 2022 | 1 |
| Games Started | MLB | 2022 | 3 |
| Games Pitched | MLB | 2022 | 4 |
| ERA | MLB | 2022 | 2.93 |
| Win-Loss Percentage | MLB | 2022 | .500 |
| Loss | MLB | 2022 | 1 |
| Wins | MLB | 2022 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2022 | 0.4 |
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| SO/BB | MLB | 2021 | 1.29 |
| SO9 | MLB | 2021 | 6.2 |
| BB9 | MLB | 2021 | 4.8 |
| HR9 | MLB | 2021 | 0.7 |
| H9 | MLB | 2021 | 7.6 |
| WHIP | MLB | 2021 | 1.385 |
| Fielding Independent Pitching | MLB | 2021 | 4.63 |
| ERA+ | MLB | 2021 | 110 |
| Batters Faced | MLB | 2021 | 59 |
| Wild Pitches | MLB | 2021 | 0 |
| Balks | MLB | 2021 | 0 |
| Times Hit by a Pitch | MLB | 2021 | 1 |
| Strikeouts | MLB | 2021 | 9 |
| Intentional Bases on Balls | MLB | 2021 | 0 |
| Bases on Balls/Walks | MLB | 2021 | 7 |
| Home Runs Allowed | MLB | 2021 | 1 |
| Earned Runs Allowed | MLB | 2021 | 6 |
| Runs Allowed | MLB | 2021 | 6 |
| Hits Allowed | MLB | 2021 | 11 |
| Innings Pitched | MLB | 2021 | 13.0 |
| Saves | MLB | 2021 | 0 |
| Shutouts | MLB | 2021 | 0 |
| Complete Games | MLB | 2021 | 0 |
| Games Finished | MLB | 2021 | 1 |
| Games Started | MLB | 2021 | 2 |
| Games Pitched | MLB | 2021 | 3 |
| ERA | MLB | 2021 | 4.15 |
| Win-Loss Percentage | MLB | 2021 | 1.000 |
| Loss | MLB | 2021 | 0 |
| Wins | MLB | 2021 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2021 | 0.3 |
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Valencia, Venezuela
Baseball
