Zach Robert Plesac (born January 21, 1995) is an American professional baseball pitcher for the Columbus Clippers, in the Cleveland Guardians organization. He made his MLB debut in 2019.
Plesac was selected in the 12th round (362nd overall) of the 2016 Major League Baseball draft by the Cleveland Indians and signed on June 29, 2016, for a $100,000 signing bonus, but did not play in 2016.
He began his professional career in 2017 with the Class A Short Season Mahoning Valley Scrappers, and after posting a 1.38 ERA in eight games (seven starts), was promoted to the Class A Lake County Captains where he finished the season, posting a 1–1 record with a 3.60 ERA in six starts.

Trophies 
Milestones
Former Youth Teams 
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| SO/BB | MLB | 2024 | 0.71 |
| SO9 | MLB | 2024 | 3.8 |
| BB9 | MLB | 2024 | 5.3 |
| HR9 | MLB | 2024 | 3.0 |
| H9 | MLB | 2024 | 9.0 |
| WHIP | MLB | 2024 | 1.583 |
| Fielding Independent Pitching | MLB | 2024 | 8.42 |
| ERA+ | MLB | 2024 | 52 |
| Batters Faced | MLB | 2024 | 54 |
| Wild Pitches | MLB | 2024 | 0 |
| Balks | MLB | 2024 | 0 |
| Times Hit by a Pitch | MLB | 2024 | 0 |
| Strikeouts | MLB | 2024 | 5 |
| Intentional Bases on Balls | MLB | 2024 | 0 |
| Bases on Balls/Walks | MLB | 2024 | 7 |
| Home Runs Allowed | MLB | 2024 | 4 |
| Earned Runs Allowed | MLB | 2024 | 11 |
| Runs Allowed | MLB | 2024 | 11 |
| Hits Allowed | MLB | 2024 | 12 |
| Innings Pitched | MLB | 2024 | 12.0 |
| Saves | MLB | 2024 | 0 |
| Shutouts | MLB | 2024 | 0 |
| Complete Games | MLB | 2024 | 0 |
| Games Finished | MLB | 2024 | 0 |
| Games Started | MLB | 2024 | 3 |
| Games Pitched | MLB | 2024 | 3 |
| ERA | MLB | 2024 | 8.25 |
| Win-Loss Percentage | MLB | 2024 | .500 |
| Loss | MLB | 2024 | 1 |
| Wins | MLB | 2024 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2024 | -0.3 |
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| SO/BB | MLB | 2023 | 2.80 |
| SO9 | MLB | 2023 | 5.9 |
| BB9 | MLB | 2023 | 2.1 |
| HR9 | MLB | 2023 | 1.3 |
| H9 | MLB | 2023 | 15.6 |
| WHIP | MLB | 2023 | 1.969 |
| Fielding Independent Pitching | MLB | 2023 | 4.47 |
| ERA+ | MLB | 2023 | 57 |
| Batters Faced | MLB | 2023 | 105 |
| Wild Pitches | MLB | 2023 | 0 |
| Balks | MLB | 2023 | 0 |
| Times Hit by a Pitch | MLB | 2023 | 0 |
| Strikeouts | MLB | 2023 | 14 |
| Intentional Bases on Balls | MLB | 2023 | 0 |
| Bases on Balls/Walks | MLB | 2023 | 5 |
| Home Runs Allowed | MLB | 2023 | 3 |
| Earned Runs Allowed | MLB | 2023 | 18 |
| Runs Allowed | MLB | 2023 | 20 |
| Hits Allowed | MLB | 2023 | 37 |
| Innings Pitched | MLB | 2023 | 21.1 |
| Saves | MLB | 2023 | 0 |
| Shutouts | MLB | 2023 | 0 |
| Complete Games | MLB | 2023 | 0 |
| Games Finished | MLB | 2023 | 0 |
| Games Started | MLB | 2023 | 5 |
| Games Pitched | MLB | 2023 | 5 |
| ERA | MLB | 2023 | 7.59 |
| Win-Loss Percentage | MLB | 2023 | .500 |
| Loss | MLB | 2023 | 1 |
| Wins | MLB | 2023 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2023 | -0.6 |
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|
| SO/BB | MLB | 2022 | 2.63 |
| SO9 | MLB | 2022 | 6.8 |
| BB9 | MLB | 2022 | 2.6 |
| HR9 | MLB | 2022 | 1.3 |
| H9 | MLB | 2022 | 9.3 |
| WHIP | MLB | 2022 | 1.322 |
| Fielding Independent Pitching | MLB | 2022 | 4.45 |
| ERA+ | MLB | 2022 | 88 |
| Batters Faced | MLB | 2022 | 568 |
| Wild Pitches | MLB | 2022 | 4 |
| Balks | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 5 |
| Strikeouts | MLB | 2022 | 100 |
| Intentional Bases on Balls | MLB | 2022 | 0 |
| Bases on Balls/Walks | MLB | 2022 | 38 |
| Home Runs Allowed | MLB | 2022 | 19 |
| Earned Runs Allowed | MLB | 2022 | 63 |
| Runs Allowed | MLB | 2022 | 74 |
| Hits Allowed | MLB | 2022 | 136 |
| Innings Pitched | MLB | 2022 | 131.2 |
| Saves | MLB | 2022 | 0 |
| Shutouts | MLB | 2022 | 0 |
| Complete Games | MLB | 2022 | 0 |
| Games Finished | MLB | 2022 | 0 |
| Games Started | MLB | 2022 | 24 |
| Games Pitched | MLB | 2022 | 25 |
| ERA | MLB | 2022 | 4.31 |
| Win-Loss Percentage | MLB | 2022 | .200 |
| Loss | MLB | 2022 | 12 |
| Wins | MLB | 2022 | 3 |
| Wins Above Replacement for Pitchers | MLB | 2022 | -0.8 |
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| SO/BB | MLB | 2021 | 2.94 |
| SO9 | MLB | 2021 | 6.3 |
| BB9 | MLB | 2021 | 2.1 |
| HR9 | MLB | 2021 | 1.5 |
| H9 | MLB | 2021 | 8.6 |
| WHIP | MLB | 2021 | 1.199 |
| Fielding Independent Pitching | MLB | 2021 | 4.73 |
| ERA+ | MLB | 2021 | 92 |
| Batters Faced | MLB | 2021 | 598 |
| Wild Pitches | MLB | 2021 | 5 |
| Balks | MLB | 2021 | 1 |
| Times Hit by a Pitch | MLB | 2021 | 7 |
| Strikeouts | MLB | 2021 | 100 |
| Intentional Bases on Balls | MLB | 2021 | 1 |
| Bases on Balls/Walks | MLB | 2021 | 34 |
| Home Runs Allowed | MLB | 2021 | 23 |
| Earned Runs Allowed | MLB | 2021 | 74 |
| Runs Allowed | MLB | 2021 | 79 |
| Hits Allowed | MLB | 2021 | 137 |
| Innings Pitched | MLB | 2021 | 142.2 |
| Saves | MLB | 2021 | 0 |
| Shutouts | MLB | 2021 | 0 |
| Complete Games | MLB | 2021 | 0 |
| Games Finished | MLB | 2021 | 0 |
| Games Started | MLB | 2021 | 25 |
| Games Pitched | MLB | 2021 | 25 |
| ERA | MLB | 2021 | 4.67 |
| Win-Loss Percentage | MLB | 2021 | .625 |
| Loss | MLB | 2021 | 6 |
| Wins | MLB | 2021 | 10 |
| Wins Above Replacement for Pitchers | MLB | 2021 | 1.1 |
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| SO/BB | MLB | 2020 | 9.50 |
| SO9 | MLB | 2020 | 9.3 |
| BB9 | MLB | 2020 | 1.0 |
| HR9 | MLB | 2020 | 1.3 |
| H9 | MLB | 2020 | 6.2 |
| WHIP | MLB | 2020 | 0.795 |
| Fielding Independent Pitching | MLB | 2020 | 3.39 |
| ERA+ | MLB | 2020 | 196 |
| Batters Faced | MLB | 2020 | 206 |
| Wild Pitches | MLB | 2020 | 0 |
| Balks | MLB | 2020 | 0 |
| Times Hit by a Pitch | MLB | 2020 | 1 |
| Strikeouts | MLB | 2020 | 57 |
| Intentional Bases on Balls | MLB | 2020 | 0 |
| Bases on Balls/Walks | MLB | 2020 | 6 |
| Home Runs Allowed | MLB | 2020 | 8 |
| Earned Runs Allowed | MLB | 2020 | 14 |
| Runs Allowed | MLB | 2020 | 14 |
| Hits Allowed | MLB | 2020 | 38 |
| Innings Pitched | MLB | 2020 | 55.1 |
| Saves | MLB | 2020 | 0 |
| Shutouts | MLB | 2020 | 0 |
| Complete Games | MLB | 2020 | 0 |
| Games Finished | MLB | 2020 | 0 |
| Games Started | MLB | 2020 | 8 |
| Games Pitched | MLB | 2020 | 8 |
| ERA | MLB | 2020 | 2.28 |
| Win-Loss Percentage | MLB | 2020 | .667 |
| Loss | MLB | 2020 | 2 |
| Wins | MLB | 2020 | 4 |
| Wins Above Replacement for Pitchers | MLB | 2020 | 2.1 |
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| SO/BB | MLB | 2019 | 2.20 |
| SO9 | MLB | 2019 | 6.8 |
| BB9 | MLB | 2019 | 3.1 |
| HR9 | MLB | 2019 | 1.5 |
| H9 | MLB | 2019 | 7.9 |
| WHIP | MLB | 2019 | 1.228 |
| Fielding Independent Pitching | MLB | 2019 | 4.94 |
| ERA+ | MLB | 2019 | 124 |
| Batters Faced | MLB | 2019 | 475 |
| Wild Pitches | MLB | 2019 | 1 |
| Balks | MLB | 2019 | 0 |
| Home Runs Allowed | MLB | 2019 | 19 |
| Earned Runs Allowed | MLB | 2019 | 49 |
| Runs Allowed | MLB | 2019 | 52 |
| Hits Allowed | MLB | 2019 | 102 |
| Innings Pitched | MLB | 2019 | 115.2 |
| Saves | MLB | 2019 | 0 |
| Shutouts | MLB | 2019 | 1 |
| Complete Games | MLB | 2019 | 1 |
| Games Finished | MLB | 2019 | 0 |
| Games Started | MLB | 2019 | 21 |
| Games Pitched | MLB | 2019 | 21 |
| ERA | MLB | 2019 | 3.81 |
| Win-Loss Percentage | MLB | 2019 | .571 |
| Loss | MLB | 2019 | 6 |
| Wins | MLB | 2019 | 8 |
| Wins Above Replacement for Pitchers | MLB | 2019 | 1.9 |
| Positions Played | MLB | 2019 | 1 |
| Intentional Bases on Balls | MLB | 2019 | 0 |
| Sacrifice Flies | MLB | 2019 | 0 |
| Sacrifice Hits | MLB | 2019 | 1 |
| Times Hit by a Pitch | MLB | 2019 | 0 |
| GIDP | MLB | 2019 | 0 |
| Total Bases | MLB | 2019 | 0 |
| Strikeouts | MLB | 2019 | 0 |
| 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 | 0 |
| Plate Appearances | MLB | 2019 | 1 |
| Games Played | MLB | 2019 | 1 |
| Wins Above Replacement for position players | MLB | 2019 | 0.0 |
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