Triston Andrew McKenzie (born August 2, 1997) is an American professional baseball pitcher for the Cleveland Guardians of Major League Baseball (MLB).
McKenzie spent 2015, his first professional season, with the Arizona League Indians where he posted a 0.75 ERA in 12 innings pitched. In 2016, McKenzie began the season with the Mahoning Valley Scrappers before being promoted to the Lake County Captains; he posted a combined 1.62 ERA with 104 strikeouts in 83+1⁄3 innings pitched between the two teams.
On June 30, 2024 he was optioned to AAA Columbus Clippers.

Trophies 
Milestones
Former Youth Teams 
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| SO/BB | MLB | 2025 | 0.57 |
| SO9 | MLB | 2025 | 6.4 |
| BB9 | MLB | 2025 | 11.1 |
| HR9 | MLB | 2025 | 1.6 |
| H9 | MLB | 2025 | 11.1 |
| WHIP | MLB | 2025 | 2.471 |
| Fielding Independent Pitching | MLB | 2025 | 7.72 |
| ERA+ | MLB | 2025 | 40 |
| Batters Faced | MLB | 2025 | 30 |
| Wild Pitches | MLB | 2025 | 3 |
| Balks | MLB | 2025 | 0 |
| Times Hit by a Pitch | MLB | 2025 | 0 |
| Strikeouts | MLB | 2025 | 4 |
| Intentional Bases on Balls | MLB | 2025 | 0 |
| Bases on Balls/Walks | MLB | 2025 | 7 |
| Home Runs Allowed | MLB | 2025 | 1 |
| Earned Runs Allowed | MLB | 2025 | 7 |
| Runs Allowed | MLB | 2025 | 7 |
| Hits Allowed | MLB | 2025 | 7 |
| Innings Pitched | MLB | 2025 | 5.2 |
| Saves | MLB | 2025 | 0 |
| Shutouts | MLB | 2025 | 0 |
| Complete Games | MLB | 2025 | 0 |
| Games Finished | MLB | 2025 | 3 |
| Games Started | MLB | 2025 | 0 |
| Games Pitched | MLB | 2025 | 4 |
| ERA | MLB | 2025 | 11.12 |
| Loss | MLB | 2025 | 0 |
| Wins | MLB | 2025 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2025 | -0.2 |
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| SO/BB | MLB | 2024 | 1.51 |
| SO9 | MLB | 2024 | 8.8 |
| BB9 | MLB | 2024 | 5.8 |
| HR9 | MLB | 2024 | 2.3 |
| H9 | MLB | 2024 | 8.2 |
| WHIP | MLB | 2024 | 1.559 |
| Fielding Independent Pitching | MLB | 2024 | 6.46 |
| ERA+ | MLB | 2024 | 79 |
| Batters Faced | MLB | 2024 | 340 |
| Wild Pitches | MLB | 2024 | 5 |
| Balks | MLB | 2024 | 0 |
| Times Hit by a Pitch | MLB | 2024 | 1 |
| Strikeouts | MLB | 2024 | 74 |
| Intentional Bases on Balls | MLB | 2024 | 1 |
| Bases on Balls/Walks | MLB | 2024 | 49 |
| Home Runs Allowed | MLB | 2024 | 19 |
| Earned Runs Allowed | MLB | 2024 | 43 |
| Runs Allowed | MLB | 2024 | 46 |
| Hits Allowed | MLB | 2024 | 69 |
| Innings Pitched | MLB | 2024 | 75.2 |
| Saves | MLB | 2024 | 0 |
| Shutouts | MLB | 2024 | 0 |
| Complete Games | MLB | 2024 | 0 |
| Games Finished | MLB | 2024 | 0 |
| Games Started | MLB | 2024 | 16 |
| Games Pitched | MLB | 2024 | 16 |
| ERA | MLB | 2024 | 5.11 |
| Win-Loss Percentage | MLB | 2024 | .375 |
| Loss | MLB | 2024 | 5 |
| Wins | MLB | 2024 | 3 |
| Wins Above Replacement for Pitchers | MLB | 2024 | -0.5 |
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|
| SO/BB | MLB | 2023 | 1.23 |
| SO9 | MLB | 2023 | 9.0 |
| BB9 | MLB | 2023 | 7.3 |
| HR9 | MLB | 2023 | 0.6 |
| H9 | MLB | 2023 | 6.8 |
| WHIP | MLB | 2023 | 1.563 |
| Fielding Independent Pitching | MLB | 2023 | 4.51 |
| ERA+ | MLB | 2023 | 86 |
| Batters Faced | MLB | 2023 | 73 |
| Wild Pitches | MLB | 2023 | 1 |
| Balks | MLB | 2023 | 0 |
| Times Hit by a Pitch | MLB | 2023 | 0 |
| Strikeouts | MLB | 2023 | 16 |
| Intentional Bases on Balls | MLB | 2023 | 0 |
| Bases on Balls/Walks | MLB | 2023 | 13 |
| Home Runs Allowed | MLB | 2023 | 1 |
| Earned Runs Allowed | MLB | 2023 | 9 |
| Runs Allowed | MLB | 2023 | 9 |
| Hits Allowed | MLB | 2023 | 12 |
| Innings Pitched | MLB | 2023 | 16.0 |
| Saves | MLB | 2023 | 0 |
| Shutouts | MLB | 2023 | 0 |
| Complete Games | MLB | 2023 | 0 |
| Games Finished | MLB | 2023 | 0 |
| Games Started | MLB | 2023 | 4 |
| Games Pitched | MLB | 2023 | 4 |
| ERA | MLB | 2023 | 5.06 |
| Win-Loss Percentage | MLB | 2023 | .000 |
| Loss | MLB | 2023 | 3 |
| Wins | MLB | 2023 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2023 | 0.1 |
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| SO/BB | MLB | 2022 | 4.32 |
| SO9 | MLB | 2022 | 8.9 |
| BB9 | MLB | 2022 | 2.1 |
| HR9 | MLB | 2022 | 1.2 |
| H9 | MLB | 2022 | 6.5 |
| WHIP | MLB | 2022 | 0.951 |
| Fielding Independent Pitching | MLB | 2022 | 3.59 |
| ERA+ | MLB | 2022 | 127 |
| Batters Faced | MLB | 2022 | 741 |
| Wild Pitches | MLB | 2022 | 8 |
| Balks | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 5 |
| Strikeouts | MLB | 2022 | 190 |
| Intentional Bases on Balls | MLB | 2022 | 0 |
| Bases on Balls/Walks | MLB | 2022 | 44 |
| Home Runs Allowed | MLB | 2022 | 25 |
| Earned Runs Allowed | MLB | 2022 | 63 |
| Runs Allowed | MLB | 2022 | 65 |
| Hits Allowed | MLB | 2022 | 138 |
| Innings Pitched | MLB | 2022 | 191.1 |
| Saves | MLB | 2022 | 0 |
| Shutouts | MLB | 2022 | 0 |
| Complete Games | MLB | 2022 | 0 |
| Games Finished | MLB | 2022 | 1 |
| Games Started | MLB | 2022 | 30 |
| Games Pitched | MLB | 2022 | 31 |
| ERA | MLB | 2022 | 2.96 |
| Win-Loss Percentage | MLB | 2022 | .500 |
| Loss | MLB | 2022 | 11 |
| Wins | MLB | 2022 | 11 |
| Wins Above Replacement for Pitchers | MLB | 2022 | 3.9 |
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| SO/BB | MLB | 2021 | 2.34 |
| SO9 | MLB | 2021 | 10.2 |
| BB9 | MLB | 2021 | 4.4 |
| HR9 | MLB | 2021 | 1.6 |
| H9 | MLB | 2021 | 6.3 |
| WHIP | MLB | 2021 | 1.183 |
| Fielding Independent Pitching | MLB | 2021 | 4.70 |
| ERA+ | MLB | 2021 | 87 |
| Batters Faced | MLB | 2021 | 495 |
| Wild Pitches | MLB | 2021 | 2 |
| Balks | MLB | 2021 | 2 |
| Home Runs Allowed | MLB | 2021 | 21 |
| Earned Runs Allowed | MLB | 2021 | 66 |
| Runs Allowed | MLB | 2021 | 66 |
| Hits Allowed | MLB | 2021 | 84 |
| Innings Pitched | MLB | 2021 | 120.0 |
| Saves | MLB | 2021 | 0 |
| Shutouts | MLB | 2021 | 0 |
| Complete Games | MLB | 2021 | 0 |
| Games Finished | MLB | 2021 | 0 |
| Games Started | MLB | 2021 | 24 |
| Games Pitched | MLB | 2021 | 25 |
| ERA | MLB | 2021 | 4.95 |
| Win-Loss Percentage | MLB | 2021 | .357 |
| Loss | MLB | 2021 | 9 |
| Wins | MLB | 2021 | 5 |
| Wins Above Replacement for Pitchers | MLB | 2021 | 1.0 |
| 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 | 1 |
| Rbat+ | MLB | 2021 | 188 |
| rOBA | MLB | 2021 | .446 |
| OPS+ | MLB | 2021 | 178 |
| OPS | MLB | 2021 | 1.000 |
| SLG | MLB | 2021 | .500 |
| OBP | MLB | 2021 | .500 |
| Hits/At Bats | MLB | 2021 | .500 |
| 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 | 1 |
| Runs Scored | MLB | 2021 | 0 |
| At Bats | MLB | 2021 | 2 |
| Plate Appearances | MLB | 2021 | 2 |
| Games Played | MLB | 2021 | 1 |
| Wins Above Replacement for position players | MLB | 2021 | 0.1 |
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| SO/BB | MLB | 2020 | 4.67 |
| SO9 | MLB | 2020 | 11.3 |
| BB9 | MLB | 2020 | 2.4 |
| HR9 | MLB | 2020 | 1.6 |
| H9 | MLB | 2020 | 5.7 |
| WHIP | MLB | 2020 | 0.900 |
| Fielding Independent Pitching | MLB | 2020 | 3.91 |
| ERA+ | MLB | 2020 | 138 |
| Batters Faced | MLB | 2020 | 127 |
| Wild Pitches | MLB | 2020 | 0 |
| Balks | MLB | 2020 | 0 |
| Times Hit by a Pitch | MLB | 2020 | 1 |
| Strikeouts | MLB | 2020 | 42 |
| Intentional Bases on Balls | MLB | 2020 | 0 |
| Bases on Balls/Walks | MLB | 2020 | 9 |
| Home Runs Allowed | MLB | 2020 | 6 |
| Earned Runs Allowed | MLB | 2020 | 12 |
| Runs Allowed | MLB | 2020 | 12 |
| Hits Allowed | MLB | 2020 | 21 |
| Innings Pitched | MLB | 2020 | 33.1 |
| Saves | MLB | 2020 | 0 |
| Shutouts | MLB | 2020 | 0 |
| Complete Games | MLB | 2020 | 0 |
| Games Finished | MLB | 2020 | 0 |
| Games Started | MLB | 2020 | 6 |
| Games Pitched | MLB | 2020 | 8 |
| ERA | MLB | 2020 | 3.24 |
| Win-Loss Percentage | MLB | 2020 | .667 |
| Loss | MLB | 2020 | 1 |
| Wins | MLB | 2020 | 2 |
| Wins Above Replacement for Pitchers | MLB | 2020 | 0.6 |
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