Erik Donald Swanson (born September 4, 1993) is an American professional baseball pitcher for the Toronto Blue Jays of Major League Baseball (MLB). He made his MLB debut in 2019 with the Seattle Mariners.

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Milestones
Former Youth Teams 
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| SO/BB | MLB | 2025 | 0.60 |
| SO9 | MLB | 2025 | 5.1 |
| BB9 | MLB | 2025 | 8.4 |
| HR9 | MLB | 2025 | 3.4 |
| H9 | MLB | 2025 | 13.5 |
| WHIP | MLB | 2025 | 2.438 |
| Fielding Independent Pitching | MLB | 2025 | 10.26 |
| ERA+ | MLB | 2025 | 30 |
| Batters Faced | MLB | 2025 | 30 |
| Wild Pitches | MLB | 2025 | 1 |
| Balks | MLB | 2025 | 0 |
| Times Hit by a Pitch | MLB | 2025 | 1 |
| Strikeouts | MLB | 2025 | 3 |
| Intentional Bases on Balls | MLB | 2025 | 0 |
| Bases on Balls/Walks | MLB | 2025 | 5 |
| Home Runs Allowed | MLB | 2025 | 2 |
| Earned Runs Allowed | MLB | 2025 | 9 |
| Runs Allowed | MLB | 2025 | 9 |
| Hits Allowed | MLB | 2025 | 8 |
| Innings Pitched | MLB | 2025 | 5.1 |
| Saves | MLB | 2025 | 0 |
| Shutouts | MLB | 2025 | 0 |
| Complete Games | MLB | 2025 | 0 |
| Games Finished | MLB | 2025 | 2 |
| Games Started | MLB | 2025 | 0 |
| Games Pitched | MLB | 2025 | 6 |
| ERA | MLB | 2025 | 15.19 |
| Win-Loss Percentage | MLB | 2025 | 1.000 |
| Loss | MLB | 2025 | 0 |
| Wins | MLB | 2025 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2025 | -0.4 |
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| SO/BB | MLB | 2024 | 2.64 |
| SO9 | MLB | 2024 | 8.5 |
| BB9 | MLB | 2024 | 3.2 |
| HR9 | MLB | 2024 | 2.5 |
| H9 | MLB | 2024 | 8.2 |
| WHIP | MLB | 2024 | 1.271 |
| Fielding Independent Pitching | MLB | 2024 | 6.06 |
| ERA+ | MLB | 2024 | 82 |
| Batters Faced | MLB | 2024 | 168 |
| Wild Pitches | MLB | 2024 | 0 |
| Balks | MLB | 2024 | 1 |
| Times Hit by a Pitch | MLB | 2024 | 1 |
| Strikeouts | MLB | 2024 | 37 |
| Intentional Bases on Balls | MLB | 2024 | 0 |
| Bases on Balls/Walks | MLB | 2024 | 14 |
| Home Runs Allowed | MLB | 2024 | 11 |
| Earned Runs Allowed | MLB | 2024 | 22 |
| Runs Allowed | MLB | 2024 | 22 |
| Hits Allowed | MLB | 2024 | 36 |
| Innings Pitched | MLB | 2024 | 39.1 |
| Saves | MLB | 2024 | 0 |
| Shutouts | MLB | 2024 | 0 |
| Complete Games | MLB | 2024 | 0 |
| Games Finished | MLB | 2024 | 15 |
| Games Started | MLB | 2024 | 0 |
| Games Pitched | MLB | 2024 | 45 |
| ERA | MLB | 2024 | 5.03 |
| Win-Loss Percentage | MLB | 2024 | .500 |
| Loss | MLB | 2024 | 2 |
| Wins | MLB | 2024 | 2 |
| Wins Above Replacement for Pitchers | MLB | 2024 | -0.3 |
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| SO/BB | MLB | 2023 | 3.57 |
| SO9 | MLB | 2023 | 10.1 |
| BB9 | MLB | 2023 | 2.8 |
| HR9 | MLB | 2023 | 1.1 |
| H9 | MLB | 2023 | 7.0 |
| WHIP | MLB | 2023 | 1.095 |
| Fielding Independent Pitching | MLB | 2023 | 3.51 |
| ERA+ | MLB | 2023 | 145 |
| Batters Faced | MLB | 2023 | 262 |
| Wild Pitches | MLB | 2023 | 0 |
| Balks | MLB | 2023 | 0 |
| Times Hit by a Pitch | MLB | 2023 | 0 |
| Strikeouts | MLB | 2023 | 75 |
| Intentional Bases on Balls | MLB | 2023 | 0 |
| Bases on Balls/Walks | MLB | 2023 | 21 |
| Home Runs Allowed | MLB | 2023 | 8 |
| Earned Runs Allowed | MLB | 2023 | 22 |
| Runs Allowed | MLB | 2023 | 22 |
| Hits Allowed | MLB | 2023 | 52 |
| Innings Pitched | MLB | 2023 | 66.2 |
| Saves | MLB | 2023 | 4 |
| Shutouts | MLB | 2023 | 0 |
| Complete Games | MLB | 2023 | 0 |
| Games Finished | MLB | 2023 | 13 |
| Games Started | MLB | 2023 | 0 |
| Games Pitched | MLB | 2023 | 69 |
| ERA | MLB | 2023 | 2.97 |
| Win-Loss Percentage | MLB | 2023 | .667 |
| Loss | MLB | 2023 | 2 |
| Wins | MLB | 2023 | 4 |
| Wins Above Replacement for Pitchers | MLB | 2023 | 1.5 |
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| SO/BB | MLB | 2022 | 7.00 |
| SO9 | MLB | 2022 | 11.7 |
| BB9 | MLB | 2022 | 1.7 |
| HR9 | MLB | 2022 | 0.5 |
| H9 | MLB | 2022 | 6.5 |
| WHIP | MLB | 2022 | 0.913 |
| Fielding Independent Pitching | MLB | 2022 | 1.84 |
| ERA+ | MLB | 2022 | 222 |
| Batters Faced | MLB | 2022 | 206 |
| Wild Pitches | MLB | 2022 | 1 |
| Balks | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 1 |
| Strikeouts | MLB | 2022 | 70 |
| Intentional Bases on Balls | MLB | 2022 | 1 |
| Bases on Balls/Walks | MLB | 2022 | 10 |
| Home Runs Allowed | MLB | 2022 | 3 |
| Earned Runs Allowed | MLB | 2022 | 10 |
| Runs Allowed | MLB | 2022 | 11 |
| Hits Allowed | MLB | 2022 | 39 |
| Innings Pitched | MLB | 2022 | 53.2 |
| Saves | MLB | 2022 | 3 |
| Shutouts | MLB | 2022 | 0 |
| Complete Games | MLB | 2022 | 0 |
| Games Finished | MLB | 2022 | 9 |
| Games Started | MLB | 2022 | 1 |
| Games Pitched | MLB | 2022 | 57 |
| ERA | MLB | 2022 | 1.68 |
| Win-Loss Percentage | MLB | 2022 | .600 |
| Loss | MLB | 2022 | 2 |
| Wins | MLB | 2022 | 3 |
| Wins Above Replacement for Pitchers | MLB | 2022 | 1.7 |
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| SO/BB | MLB | 2021 | 3.50 |
| SO9 | MLB | 2021 | 8.9 |
| BB9 | MLB | 2021 | 2.5 |
| HR9 | MLB | 2021 | 1.3 |
| H9 | MLB | 2021 | 7.1 |
| WHIP | MLB | 2021 | 1.075 |
| Fielding Independent Pitching | MLB | 2021 | 3.96 |
| ERA+ | MLB | 2021 | 125 |
| Batters Faced | MLB | 2021 | 144 |
| Wild Pitches | MLB | 2021 | 0 |
| Balks | MLB | 2021 | 0 |
| Home Runs Allowed | MLB | 2021 | 5 |
| Earned Runs Allowed | MLB | 2021 | 13 |
| Runs Allowed | MLB | 2021 | 18 |
| Hits Allowed | MLB | 2021 | 28 |
| Innings Pitched | MLB | 2021 | 35.1 |
| Saves | MLB | 2021 | 1 |
| Shutouts | MLB | 2021 | 0 |
| Complete Games | MLB | 2021 | 0 |
| Games Finished | MLB | 2021 | 5 |
| Games Started | MLB | 2021 | 2 |
| Games Pitched | MLB | 2021 | 33 |
| ERA | MLB | 2021 | 3.31 |
| Win-Loss Percentage | MLB | 2021 | .000 |
| Loss | MLB | 2021 | 3 |
| Wins | MLB | 2021 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2021 | 0.3 |
| Positions Played | MLB | 2021 | 1 |
| Intentional Bases on Balls | MLB | 2021 | 0 |
| Sacrifice Flies | MLB | 2021 | 0 |
| Sacrifice Hits | MLB | 2021 | 0 |
| Times Hit by a Pitch | MLB | 2021 | 0 |
| GIDP | MLB | 2021 | 0 |
| Total Bases | MLB | 2021 | 0 |
| Strikeouts | MLB | 2021 | 0 |
| Bases on Balls/Walks | MLB | 2021 | 0 |
| Caught Stealing | MLB | 2021 | 0 |
| Stolen Bases | MLB | 2021 | 0 |
| Runs Batted In | MLB | 2021 | 0 |
| Home Runs | MLB | 2021 | 0 |
| Triples | MLB | 2021 | 0 |
| Doubles | MLB | 2021 | 0 |
| Hits | MLB | 2021 | 0 |
| Runs Scored | MLB | 2021 | 0 |
| At Bats | MLB | 2021 | 0 |
| Plate Appearances | MLB | 2021 | 0 |
| Games Played | MLB | 2021 | 4 |
| Wins Above Replacement for position players | MLB | 2021 | 0.0 |
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| SO/BB | MLB | 2020 | 4.50 |
| SO9 | MLB | 2020 | 10.6 |
| BB9 | MLB | 2020 | 2.3 |
| HR9 | MLB | 2020 | 3.5 |
| H9 | MLB | 2020 | 12.9 |
| WHIP | MLB | 2020 | 1.696 |
| Fielding Independent Pitching | MLB | 2020 | 7.50 |
| ERA+ | MLB | 2020 | 34 |
| Batters Faced | MLB | 2020 | 37 |
| Wild Pitches | MLB | 2020 | 1 |
| Balks | MLB | 2020 | 0 |
| Times Hit by a Pitch | MLB | 2020 | 2 |
| Strikeouts | MLB | 2020 | 9 |
| Intentional Bases on Balls | MLB | 2020 | 0 |
| Bases on Balls/Walks | MLB | 2020 | 2 |
| Home Runs Allowed | MLB | 2020 | 3 |
| Earned Runs Allowed | MLB | 2020 | 11 |
| Runs Allowed | MLB | 2020 | 12 |
| Hits Allowed | MLB | 2020 | 11 |
| Innings Pitched | MLB | 2020 | 7.2 |
| Saves | MLB | 2020 | 0 |
| Shutouts | MLB | 2020 | 0 |
| Complete Games | MLB | 2020 | 0 |
| Games Finished | MLB | 2020 | 2 |
| Games Started | MLB | 2020 | 0 |
| Games Pitched | MLB | 2020 | 9 |
| ERA | MLB | 2020 | 12.91 |
| Win-Loss Percentage | MLB | 2020 | .000 |
| Loss | MLB | 2020 | 2 |
| Wins | MLB | 2020 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2020 | -0.8 |
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| SO/BB | MLB | 2019 | 4.33 |
| SO9 | MLB | 2019 | 8.1 |
| BB9 | MLB | 2019 | 1.9 |
| HR9 | MLB | 2019 | 2.6 |
| H9 | MLB | 2019 | 8.7 |
| WHIP | MLB | 2019 | 1.172 |
| Fielding Independent Pitching | MLB | 2019 | 5.96 |
| ERA+ | MLB | 2019 | 76 |
| Batters Faced | MLB | 2019 | 245 |
| Wild Pitches | MLB | 2019 | 2 |
| Balks | MLB | 2019 | 0 |
| Home Runs Allowed | MLB | 2019 | 17 |
| Earned Runs Allowed | MLB | 2019 | 37 |
| Runs Allowed | MLB | 2019 | 41 |
| Hits Allowed | MLB | 2019 | 56 |
| Innings Pitched | MLB | 2019 | 58.0 |
| Saves | MLB | 2019 | 2 |
| Shutouts | MLB | 2019 | 0 |
| Complete Games | MLB | 2019 | 0 |
| Games Finished | MLB | 2019 | 7 |
| Games Started | MLB | 2019 | 8 |
| Games Pitched | MLB | 2019 | 27 |
| ERA | MLB | 2019 | 5.74 |
| Win-Loss Percentage | MLB | 2019 | .167 |
| Loss | MLB | 2019 | 5 |
| Wins | MLB | 2019 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2019 | -0.3 |
| Positions Played | MLB | 2019 | 1 |
| Intentional Bases on Balls | MLB | 2019 | 0 |
| Sacrifice Flies | MLB | 2019 | 0 |
| Sacrifice Hits | MLB | 2019 | 0 |
| Times Hit by a Pitch | MLB | 2019 | 0 |
| GIDP | MLB | 2019 | 0 |
| Total Bases | MLB | 2019 | 0 |
| Rbat+ | MLB | 2019 | -128 |
| rOBA | MLB | 2019 | .000 |
| OPS+ | MLB | 2019 | -100 |
| OPS | MLB | 2019 | .000 |
| SLG | MLB | 2019 | .000 |
| OBP | MLB | 2019 | .000 |
| Hits/At Bats | MLB | 2019 | .000 |
| Strikeouts | MLB | 2019 | 1 |
| Bases on Balls/Walks | MLB | 2019 | 0 |
| Caught Stealing | MLB | 2019 | 0 |
| Stolen Bases | MLB | 2019 | 0 |
| Runs Batted In | MLB | 2019 | 0 |
| Home Runs | MLB | 2019 | 0 |
| Triples | MLB | 2019 | 0 |
| Doubles | MLB | 2019 | 0 |
| Hits | MLB | 2019 | 0 |
| Runs Scored | MLB | 2019 | 0 |
| At Bats | MLB | 2019 | 2 |
| Plate Appearances | MLB | 2019 | 2 |
| Games Played | MLB | 2019 | 3 |
| Wins Above Replacement for position players | MLB | 2019 | 0.0 |
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