Zachary Adams Eflin (born April 8, 1994) is an American professional baseball pitcher. He has previously played in MLB for the Philadelphia Phillies.
The San Diego Padres selected him in the first round (33rd overall) of the 2012 MLB draft, and he spent three seasons in the Padres' minor league system. In December 2014, Eflin was traded twice in the course of 24 hours, first to the Los Angeles Dodgers as part of a package for all-star outfielder Matt Kemp, and then to the Phillies as part of a package for franchise star Jimmy Rollins. Eflin made his MLB debut with the Phillies in 2016 and bounced between the major league and minor league levels for several seasons. Beginning in 2019, he landed permanently in the major leagues and became an anchor of the Phillies' starting rotation.
On July 26, 2024 the Tampa Bay Rays traded RHP Zach Eflin to Baltimore Orioles for RHP Jackson Baumeister, OF Matthew Etzel and OF Mac Horvath.
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Milestones
Former Youth Teams
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| SO/BB | MLB | 2025 | 3.85 |
| SO9 | MLB | 2025 | 6.3 |
| BB9 | MLB | 2025 | 1.6 |
| HR9 | MLB | 2025 | 2.3 |
| H9 | MLB | 2025 | 11.1 |
| WHIP | MLB | 2025 | 1.416 |
| Fielding Independent Pitching | MLB | 2025 | 5.65 |
| ERA+ | MLB | 2025 | 68 |
| Batters Faced | MLB | 2025 | 309 |
| Wild Pitches | MLB | 2025 | 1 |
| Balks | MLB | 2025 | 0 |
| Times Hit by a Pitch | MLB | 2025 | 2 |
| Strikeouts | MLB | 2025 | 50 |
| Intentional Bases on Balls | MLB | 2025 | 0 |
| Bases on Balls/Walks | MLB | 2025 | 13 |
| Home Runs Allowed | MLB | 2025 | 18 |
| Earned Runs Allowed | MLB | 2025 | 47 |
| Runs Allowed | MLB | 2025 | 48 |
| Hits Allowed | MLB | 2025 | 88 |
| Innings Pitched | MLB | 2025 | 71.1 |
| Saves | MLB | 2025 | 0 |
| Shutouts | MLB | 2025 | 0 |
| Complete Games | MLB | 2025 | 0 |
| Games Finished | MLB | 2025 | 0 |
| Games Started | MLB | 2025 | 14 |
| Games Pitched | MLB | 2025 | 14 |
| ERA | MLB | 2025 | 5.93 |
| Win-Loss Percentage | MLB | 2025 | .545 |
| Loss | MLB | 2025 | 5 |
| Wins | MLB | 2025 | 6 |
| Wins Above Replacement for Pitchers | MLB | 2025 | -0.4 |
|
|
| SO/BB | MLB | 2024 | 6.69 |
| SO9 | MLB | 2024 | 7.1 |
| BB9 | MLB | 2024 | 1.1 |
| HR9 | MLB | 2024 | 1.1 |
| H9 | MLB | 2024 | 9.4 |
| WHIP | MLB | 2024 | 1.164 |
| Fielding Independent Pitching | MLB | 2024 | 3.68 |
| ERA+ | MLB | 2024 | 98 |
| Batters Faced | MLB | 2024 | 460 |
| Wild Pitches | MLB | 2024 | 1 |
| Balks | MLB | 2024 | 0 |
| Times Hit by a Pitch | MLB | 2024 | 3 |
| Strikeouts | MLB | 2024 | 87 |
| Intentional Bases on Balls | MLB | 2024 | 0 |
| Bases on Balls/Walks | MLB | 2024 | 13 |
| Home Runs Allowed | MLB | 2024 | 14 |
| Earned Runs Allowed | MLB | 2024 | 50 |
| Runs Allowed | MLB | 2024 | 55 |
| Hits Allowed | MLB | 2024 | 115 |
| Innings Pitched | MLB | 2024 | 110.0 |
| Saves | MLB | 2024 | 0 |
| Shutouts | MLB | 2024 | 0 |
| Complete Games | MLB | 2024 | 0 |
| Games Finished | MLB | 2024 | 0 |
| Games Started | MLB | 2024 | 19 |
| Games Pitched | MLB | 2024 | 19 |
| ERA | MLB | 2024 | 4.09 |
| Win-Loss Percentage | MLB | 2024 | .417 |
| Loss | MLB | 2024 | 7 |
| Wins | MLB | 2024 | 5 |
| Wins Above Replacement for Pitchers | MLB | 2024 | 0.9 |
|
|
| SO/BB | MLB | 2023 | 7.75 |
| SO9 | MLB | 2023 | 9.4 |
| BB9 | MLB | 2023 | 1.2 |
| HR9 | MLB | 2023 | 1.0 |
| H9 | MLB | 2023 | 8.0 |
| WHIP | MLB | 2023 | 1.024 |
| Fielding Independent Pitching | MLB | 2023 | 3.01 |
| ERA+ | MLB | 2023 | 120 |
| Batters Faced | MLB | 2023 | 703 |
| Wild Pitches | MLB | 2023 | 0 |
| Balks | MLB | 2023 | 0 |
| Times Hit by a Pitch | MLB | 2023 | 3 |
| Strikeouts | MLB | 2023 | 186 |
| Intentional Bases on Balls | MLB | 2023 | 1 |
| Bases on Balls/Walks | MLB | 2023 | 24 |
| Home Runs Allowed | MLB | 2023 | 19 |
| Earned Runs Allowed | MLB | 2023 | 69 |
| Runs Allowed | MLB | 2023 | 69 |
| Hits Allowed | MLB | 2023 | 158 |
| Innings Pitched | MLB | 2023 | 177.2 |
| Saves | MLB | 2023 | 0 |
| Shutouts | MLB | 2023 | 0 |
| Complete Games | MLB | 2023 | 0 |
| Games Finished | MLB | 2023 | 0 |
| Games Started | MLB | 2023 | 31 |
| Games Pitched | MLB | 2023 | 31 |
| ERA | MLB | 2023 | 3.50 |
| Win-Loss Percentage | MLB | 2023 | .667 |
| Loss | MLB | 2023 | 8 |
| Wins | MLB | 2023 | 16 |
| Wins Above Replacement for Pitchers | MLB | 2023 | 3.6 |
|
|
| Positions Played | MLB | 2021 | 1 |
| Intentional Bases on Balls | MLB | 2021 | 0 |
| Sacrifice Flies | MLB | 2021 | 0 |
| Sacrifice Hits | MLB | 2021 | 6 |
| Times Hit by a Pitch | MLB | 2021 | 1 |
| GIDP | MLB | 2021 | 0 |
| Total Bases | MLB | 2021 | 0 |
| Rbat+ | MLB | 2021 | -138 |
| rOBA | MLB | 2021 | .046 |
| OPS+ | MLB | 2021 | -80 |
| OPS | MLB | 2021 | .065 |
| SLG | MLB | 2021 | .000 |
| OBP | MLB | 2021 | .065 |
| Hits/At Bats | MLB | 2021 | .000 |
| Strikeouts | MLB | 2021 | 15 |
| Bases on Balls/Walks | MLB | 2021 | 1 |
| Caught Stealing | MLB | 2021 | 0 |
| Stolen Bases | MLB | 2021 | 0 |
| Runs Batted In | MLB | 2021 | 1 |
| Home Runs | MLB | 2021 | 0 |
| Triples | MLB | 2021 | 0 |
| Doubles | MLB | 2021 | 0 |
| Hits | MLB | 2021 | 0 |
| Runs Scored | MLB | 2021 | 1 |
| At Bats | MLB | 2021 | 29 |
| Plate Appearances | MLB | 2021 | 37 |
| Games Played | MLB | 2021 | 17 |
| Wins Above Replacement for position players | MLB | 2021 | -0.3 |
|
|
| Positions Played | MLB | 2019 | 1 |
| Intentional Bases on Balls | MLB | 2019 | 0 |
| Sacrifice Flies | MLB | 2019 | 0 |
| Sacrifice Hits | MLB | 2019 | 2 |
| Times Hit by a Pitch | MLB | 2019 | 0 |
| GIDP | MLB | 2019 | 0 |
| Total Bases | MLB | 2019 | 9 |
| Rbat+ | MLB | 2019 | -30 |
| rOBA | MLB | 2019 | .163 |
| OPS+ | MLB | 2019 | -12 |
| OPS | MLB | 2019 | .340 |
| SLG | MLB | 2019 | .180 |
| OBP | MLB | 2019 | .160 |
| Hits/At Bats | MLB | 2019 | .160 |
| Strikeouts | MLB | 2019 | 27 |
| Bases on Balls/Walks | MLB | 2019 | 0 |
| Caught Stealing | MLB | 2019 | 0 |
| Stolen Bases | MLB | 2019 | 0 |
| Runs Batted In | MLB | 2019 | 2 |
| Home Runs | MLB | 2019 | 0 |
| Triples | MLB | 2019 | 0 |
| Doubles | MLB | 2019 | 1 |
| Hits | MLB | 2019 | 8 |
| Runs Scored | MLB | 2019 | 3 |
| At Bats | MLB | 2019 | 50 |
| Plate Appearances | MLB | 2019 | 52 |
| Games Played | MLB | 2019 | 31 |
| Wins Above Replacement for position players | MLB | 2019 | 0.1 |
|
|
| Positions Played | MLB | 2018 | 1/H |
| Intentional Bases on Balls | MLB | 2018 | 0 |
| Sacrifice Flies | MLB | 2018 | 0 |
| Sacrifice Hits | MLB | 2018 | 6 |
| Times Hit by a Pitch | MLB | 2018 | 0 |
| GIDP | MLB | 2018 | 0 |
| Total Bases | MLB | 2018 | 7 |
| Rbat+ | MLB | 2018 | -89 |
| rOBA | MLB | 2018 | .106 |
| OPS+ | MLB | 2018 | -35 |
| OPS | MLB | 2018 | .250 |
| SLG | MLB | 2018 | .159 |
| OBP | MLB | 2018 | .091 |
| Hits/At Bats | MLB | 2018 | .091 |
| Strikeouts | MLB | 2018 | 31 |
| Bases on Balls/Walks | MLB | 2018 | 0 |
| Caught Stealing | MLB | 2018 | 0 |
| Stolen Bases | MLB | 2018 | 0 |
| Runs Batted In | MLB | 2018 | 1 |
| Home Runs | MLB | 2018 | 1 |
| Triples | MLB | 2018 | 0 |
| Doubles | MLB | 2018 | 0 |
| Hits | MLB | 2018 | 4 |
| Runs Scored | MLB | 2018 | 3 |
| At Bats | MLB | 2018 | 44 |
| Plate Appearances | MLB | 2018 | 50 |
| Games Played | MLB | 2018 | 25 |
| Wins Above Replacement for position players | MLB | 2018 | -0.2 |
|
|
| Positions Played | MLB | 2017 | 1 |
| Intentional Bases on Balls | MLB | 2017 | 0 |
| Sacrifice Flies | MLB | 2017 | 0 |
| Sacrifice Hits | MLB | 2017 | 1 |
| Times Hit by a Pitch | MLB | 2017 | 0 |
| GIDP | MLB | 2017 | 0 |
| Total Bases | MLB | 2017 | 3 |
| Rbat+ | MLB | 2017 | -55 |
| rOBA | MLB | 2017 | .128 |
| OPS+ | MLB | 2017 | -24 |
| OPS | MLB | 2017 | .286 |
| SLG | MLB | 2017 | .143 |
| OBP | MLB | 2017 | .143 |
| Hits/At Bats | MLB | 2017 | .143 |
| Strikeouts | MLB | 2017 | 13 |
| Bases on Balls/Walks | MLB | 2017 | 0 |
| Caught Stealing | MLB | 2017 | 0 |
| Stolen Bases | MLB | 2017 | 0 |
| Runs Batted In | MLB | 2017 | 2 |
| Home Runs | MLB | 2017 | 0 |
| Triples | MLB | 2017 | 0 |
| Doubles | MLB | 2017 | 0 |
| Hits | MLB | 2017 | 3 |
| Runs Scored | MLB | 2017 | 1 |
| At Bats | MLB | 2017 | 21 |
| Plate Appearances | MLB | 2017 | 22 |
| Games Played | MLB | 2017 | 10 |
| Wins Above Replacement for position players | MLB | 2017 | 0.0 |
|
|
| Positions Played | MLB | 2016 | 1 |
| Intentional Bases on Balls | MLB | 2016 | 0 |
| Sacrifice Flies | MLB | 2016 | 0 |
| Sacrifice Hits | MLB | 2016 | 0 |
| Times Hit by a Pitch | MLB | 2016 | 0 |
| GIDP | MLB | 2016 | 2 |
| Total Bases | MLB | 2016 | 8 |
| Rbat+ | MLB | 2016 | 51 |
| rOBA | MLB | 2016 | .265 |
| OPS+ | MLB | 2016 | 61 |
| OPS | MLB | 2016 | .609 |
| SLG | MLB | 2016 | .348 |
| OBP | MLB | 2016 | .261 |
| Hits/At Bats | MLB | 2016 | .261 |
| Strikeouts | MLB | 2016 | 8 |
| Bases on Balls/Walks | MLB | 2016 | 0 |
| Caught Stealing | MLB | 2016 | 0 |
| Stolen Bases | MLB | 2016 | 0 |
| Runs Batted In | MLB | 2016 | 0 |
| Home Runs | MLB | 2016 | 0 |
| Triples | MLB | 2016 | 0 |
| Doubles | MLB | 2016 | 2 |
| Hits | MLB | 2016 | 6 |
| Runs Scored | MLB | 2016 | 2 |
| At Bats | MLB | 2016 | 23 |
| Plate Appearances | MLB | 2016 | 23 |
| Games Played | MLB | 2016 | 10 |
| Wins Above Replacement for position players | MLB | 2016 | 0.1 |
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