Michael Joseph Wacha (born July 1, 1991) is an American professional baseball pitcher for the Kansas City Royals of Major League Baseball (MLB). He has previously played in MLB for the St. Louis Cardinals, New York Mets, Tampa Bay Rays, Boston Red Sox, and San Diego Padres. He played college baseball for the Texas A&M Aggies.
The Cardinals selected Wacha in the first round of the 2012 Major League Baseball Draft from Texas A&M. With just one year in the minor leagues, he made his MLB debut on May 30, 2013. Following a strong regular season, Wacha earned the 2013 National League Championship Series Most Valuable Player Award, after yielding one run and eight hits in his first 21 postseason innings pitched.
Wacha made his MLB debut May 30, 2013, for the St. Louis Cardinals.
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| SO/BB | MLB | 2025 | 2.80 |
| SO9 | MLB | 2025 | 6.6 |
| BB9 | MLB | 2025 | 2.3 |
| HR9 | MLB | 2025 | 0.8 |
| H9 | MLB | 2025 | 8.7 |
| WHIP | MLB | 2025 | 1.222 |
| Fielding Independent Pitching | MLB | 2025 | 3.66 |
| ERA+ | MLB | 2025 | 106 |
| Batters Faced | MLB | 2025 | 716 |
| Wild Pitches | MLB | 2025 | 2 |
| Balks | MLB | 2025 | 0 |
| Times Hit by a Pitch | MLB | 2025 | 4 |
| Strikeouts | MLB | 2025 | 126 |
| Intentional Bases on Balls | MLB | 2025 | 0 |
| Bases on Balls/Walks | MLB | 2025 | 45 |
| Home Runs Allowed | MLB | 2025 | 15 |
| Earned Runs Allowed | MLB | 2025 | 74 |
| Runs Allowed | MLB | 2025 | 74 |
| Hits Allowed | MLB | 2025 | 166 |
| Innings Pitched | MLB | 2025 | 172.2 |
| Saves | MLB | 2025 | 0 |
| Shutouts | MLB | 2025 | 0 |
| Complete Games | MLB | 2025 | 0 |
| Games Finished | MLB | 2025 | 0 |
| Games Started | MLB | 2025 | 31 |
| Games Pitched | MLB | 2025 | 31 |
| ERA | MLB | 2025 | 3.86 |
| Win-Loss Percentage | MLB | 2025 | .435 |
| Loss | MLB | 2025 | 13 |
| Wins | MLB | 2025 | 10 |
| Wins Above Replacement for Pitchers | MLB | 2025 | 2.8 |
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| SO/BB | MLB | 2024 | 3.22 |
| SO9 | MLB | 2024 | 7.8 |
| BB9 | MLB | 2024 | 2.4 |
| HR9 | MLB | 2024 | 0.9 |
| H9 | MLB | 2024 | 8.3 |
| WHIP | MLB | 2024 | 1.194 |
| Fielding Independent Pitching | MLB | 2024 | 3.65 |
| ERA+ | MLB | 2024 | 123 |
| Batters Faced | MLB | 2024 | 685 |
| Wild Pitches | MLB | 2024 | 3 |
| Balks | MLB | 2024 | 0 |
| Times Hit by a Pitch | MLB | 2024 | 5 |
| Strikeouts | MLB | 2024 | 145 |
| Intentional Bases on Balls | MLB | 2024 | 1 |
| Bases on Balls/Walks | MLB | 2024 | 45 |
| Home Runs Allowed | MLB | 2024 | 17 |
| Earned Runs Allowed | MLB | 2024 | 62 |
| Runs Allowed | MLB | 2024 | 65 |
| Hits Allowed | MLB | 2024 | 154 |
| Innings Pitched | MLB | 2024 | 166.2 |
| Saves | MLB | 2024 | 0 |
| Shutouts | MLB | 2024 | 0 |
| Complete Games | MLB | 2024 | 0 |
| Games Finished | MLB | 2024 | 0 |
| Games Started | MLB | 2024 | 29 |
| Games Pitched | MLB | 2024 | 29 |
| ERA | MLB | 2024 | 3.35 |
| Win-Loss Percentage | MLB | 2024 | .619 |
| Loss | MLB | 2024 | 8 |
| Wins | MLB | 2024 | 13 |
| Wins Above Replacement for Pitchers | MLB | 2024 | 3.4 |
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|
| SO/BB | MLB | 2022 | 3.35 |
| SO9 | MLB | 2022 | 7.4 |
| BB9 | MLB | 2022 | 2.2 |
| HR9 | MLB | 2022 | 1.3 |
| H9 | MLB | 2022 | 7.8 |
| WHIP | MLB | 2022 | 1.115 |
| Fielding Independent Pitching | MLB | 2022 | 4.14 |
| ERA+ | MLB | 2022 | 127 |
| Batters Faced | MLB | 2022 | 515 |
| Wild Pitches | MLB | 2022 | 4 |
| Balks | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 4 |
| Strikeouts | MLB | 2022 | 104 |
| Intentional Bases on Balls | MLB | 2022 | 0 |
| Bases on Balls/Walks | MLB | 2022 | 31 |
| Home Runs Allowed | MLB | 2022 | 18 |
| Earned Runs Allowed | MLB | 2022 | 47 |
| Runs Allowed | MLB | 2022 | 49 |
| Hits Allowed | MLB | 2022 | 111 |
| Innings Pitched | MLB | 2022 | 127.1 |
| Saves | MLB | 2022 | 0 |
| Shutouts | MLB | 2022 | 1 |
| Complete Games | MLB | 2022 | 1 |
| Games Finished | MLB | 2022 | 0 |
| Games Started | MLB | 2022 | 23 |
| Games Pitched | MLB | 2022 | 23 |
| ERA | MLB | 2022 | 3.32 |
| Win-Loss Percentage | MLB | 2022 | .846 |
| Loss | MLB | 2022 | 2 |
| Wins | MLB | 2022 | 11 |
| Wins Above Replacement for Pitchers | MLB | 2022 | 3.3 |
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| SO/BB | MLB | 2021 | 3.90 |
| SO9 | MLB | 2021 | 8.7 |
| BB9 | MLB | 2021 | 2.2 |
| HR9 | MLB | 2021 | 1.7 |
| H9 | MLB | 2021 | 9.5 |
| WHIP | MLB | 2021 | 1.307 |
| Fielding Independent Pitching | MLB | 2021 | 4.47 |
| ERA+ | MLB | 2021 | 80 |
| Batters Faced | MLB | 2021 | 528 |
| Wild Pitches | MLB | 2021 | 5 |
| Balks | MLB | 2021 | 0 |
| Home Runs Allowed | MLB | 2021 | 23 |
| Earned Runs Allowed | MLB | 2021 | 70 |
| Runs Allowed | MLB | 2021 | 73 |
| Hits Allowed | MLB | 2021 | 132 |
| Innings Pitched | MLB | 2021 | 124.2 |
| Saves | MLB | 2021 | 0 |
| Shutouts | MLB | 2021 | 0 |
| Complete Games | MLB | 2021 | 0 |
| Games Finished | MLB | 2021 | 1 |
| Games Started | MLB | 2021 | 23 |
| Games Pitched | MLB | 2021 | 29 |
| ERA | MLB | 2021 | 5.05 |
| Win-Loss Percentage | MLB | 2021 | .375 |
| Loss | MLB | 2021 | 5 |
| Wins | MLB | 2021 | 3 |
| Wins Above Replacement for Pitchers | MLB | 2021 | -0.5 |
| Positions Played | MLB | 2021 | 1/H |
| 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 |
| Rbat+ | MLB | 2021 | -119 |
| rOBA | MLB | 2021 | .000 |
| OPS+ | MLB | 2021 | -100 |
| OPS | MLB | 2021 | .000 |
| SLG | MLB | 2021 | .000 |
| OBP | MLB | 2021 | .000 |
| Hits/At Bats | MLB | 2021 | .000 |
| Strikeouts | MLB | 2021 | 3 |
| 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 | 3 |
| Plate Appearances | MLB | 2021 | 3 |
| Games Played | MLB | 2021 | 3 |
| Wins Above Replacement for position players | MLB | 2021 | 0.0 |
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|
| Positions Played | MLB | 2019 | 1 |
| Intentional Bases on Balls | MLB | 2019 | 0 |
| Sacrifice Flies | MLB | 2019 | 0 |
| Sacrifice Hits | MLB | 2019 | 3 |
| Times Hit by a Pitch | MLB | 2019 | 0 |
| GIDP | MLB | 2019 | 0 |
| Total Bases | MLB | 2019 | 7 |
| Rbat+ | MLB | 2019 | -38 |
| rOBA | MLB | 2019 | .152 |
| OPS+ | MLB | 2019 | -4 |
| OPS | MLB | 2019 | .361 |
| SLG | MLB | 2019 | .194 |
| OBP | MLB | 2019 | .167 |
| Hits/At Bats | MLB | 2019 | .167 |
| Strikeouts | MLB | 2019 | 21 |
| Bases on Balls/Walks | MLB | 2019 | 0 |
| Caught Stealing | MLB | 2019 | 0 |
| Stolen Bases | MLB | 2019 | 0 |
| Runs Batted In | MLB | 2019 | 3 |
| Home Runs | MLB | 2019 | 0 |
| Triples | MLB | 2019 | 0 |
| Doubles | MLB | 2019 | 1 |
| Hits | MLB | 2019 | 6 |
| Runs Scored | MLB | 2019 | 3 |
| At Bats | MLB | 2019 | 36 |
| Plate Appearances | MLB | 2019 | 39 |
| Games Played | MLB | 2019 | 28 |
| Wins Above Replacement for position players | MLB | 2019 | 0.0 |
|
|
| Positions Played | MLB | 2018 | 1 |
| 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 | 2 |
| Rbat+ | MLB | 2018 | -52 |
| rOBA | MLB | 2018 | .158 |
| OPS+ | MLB | 2018 | -45 |
| OPS | MLB | 2018 | .195 |
| SLG | MLB | 2018 | .080 |
| OBP | MLB | 2018 | .115 |
| Hits/At Bats | MLB | 2018 | .080 |
| Strikeouts | MLB | 2018 | 9 |
| Bases on Balls/Walks | MLB | 2018 | 1 |
| Caught Stealing | MLB | 2018 | 0 |
| Stolen Bases | MLB | 2018 | 0 |
| Runs Batted In | MLB | 2018 | 1 |
| Home Runs | MLB | 2018 | 0 |
| Triples | MLB | 2018 | 0 |
| Doubles | MLB | 2018 | 0 |
| Hits | MLB | 2018 | 2 |
| Runs Scored | MLB | 2018 | 3 |
| At Bats | MLB | 2018 | 25 |
| Plate Appearances | MLB | 2018 | 32 |
| Games Played | MLB | 2018 | 15 |
| Wins Above Replacement for position players | MLB | 2018 | 0.0 |
|
|
| Positions Played | MLB | 2017 | 1 |
| Intentional Bases on Balls | MLB | 2017 | 0 |
| Sacrifice Flies | MLB | 2017 | 1 |
| Sacrifice Hits | MLB | 2017 | 7 |
| Times Hit by a Pitch | MLB | 2017 | 0 |
| GIDP | MLB | 2017 | 2 |
| Total Bases | MLB | 2017 | 2 |
| Rbat+ | MLB | 2017 | -101 |
| rOBA | MLB | 2017 | .089 |
| OPS+ | MLB | 2017 | -71 |
| OPS | MLB | 2017 | .106 |
| SLG | MLB | 2017 | .043 |
| OBP | MLB | 2017 | .063 |
| Hits/At Bats | MLB | 2017 | .043 |
| Strikeouts | MLB | 2017 | 22 |
| Bases on Balls/Walks | MLB | 2017 | 1 |
| Caught Stealing | MLB | 2017 | 0 |
| Stolen Bases | MLB | 2017 | 0 |
| Runs Batted In | MLB | 2017 | 3 |
| Home Runs | MLB | 2017 | 0 |
| Triples | MLB | 2017 | 0 |
| Doubles | MLB | 2017 | 0 |
| Hits | MLB | 2017 | 2 |
| Runs Scored | MLB | 2017 | 3 |
| At Bats | MLB | 2017 | 46 |
| Plate Appearances | MLB | 2017 | 55 |
| Games Played | MLB | 2017 | 28 |
| Wins Above Replacement for position players | MLB | 2017 | -0.3 |
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|
| Positions Played | MLB | 2016 | 1 |
| Intentional Bases on Balls | MLB | 2016 | 0 |
| Sacrifice Flies | MLB | 2016 | 0 |
| Sacrifice Hits | MLB | 2016 | 3 |
| Times Hit by a Pitch | MLB | 2016 | 0 |
| GIDP | MLB | 2016 | 1 |
| Total Bases | MLB | 2016 | 1 |
| Rbat+ | MLB | 2016 | -86 |
| rOBA | MLB | 2016 | .090 |
| OPS+ | MLB | 2016 | -65 |
| OPS | MLB | 2016 | .121 |
| SLG | MLB | 2016 | .026 |
| OBP | MLB | 2016 | .095 |
| Hits/At Bats | MLB | 2016 | .026 |
| Strikeouts | MLB | 2016 | 22 |
| Bases on Balls/Walks | MLB | 2016 | 3 |
| 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 | 0 |
| Hits | MLB | 2016 | 1 |
| Runs Scored | MLB | 2016 | 1 |
| At Bats | MLB | 2016 | 39 |
| Plate Appearances | MLB | 2016 | 45 |
| Games Played | MLB | 2016 | 26 |
| Wins Above Replacement for position players | MLB | 2016 | -0.3 |
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|
| Positions Played | MLB | 2015 | 1 |
| Intentional Bases on Balls | MLB | 2015 | 0 |
| Sacrifice Flies | MLB | 2015 | 0 |
| Sacrifice Hits | MLB | 2015 | 6 |
| Times Hit by a Pitch | MLB | 2015 | 0 |
| GIDP | MLB | 2015 | 0 |
| Total Bases | MLB | 2015 | 9 |
| Rbat+ | MLB | 2015 | -7 |
| rOBA | MLB | 2015 | .202 |
| OPS+ | MLB | 2015 | 8 |
| OPS | MLB | 2015 | .387 |
| SLG | MLB | 2015 | .173 |
| OBP | MLB | 2015 | .214 |
| Hits/At Bats | MLB | 2015 | .154 |
| Strikeouts | MLB | 2015 | 20 |
| Bases on Balls/Walks | MLB | 2015 | 4 |
| Caught Stealing | MLB | 2015 | 0 |
| Stolen Bases | MLB | 2015 | 1 |
| Runs Batted In | MLB | 2015 | 4 |
| Home Runs | MLB | 2015 | 0 |
| Triples | MLB | 2015 | 0 |
| Doubles | MLB | 2015 | 1 |
| Hits | MLB | 2015 | 8 |
| Runs Scored | MLB | 2015 | 5 |
| At Bats | MLB | 2015 | 52 |
| Plate Appearances | MLB | 2015 | 62 |
| Games Played | MLB | 2015 | 27 |
| Wins Above Replacement for position players | MLB | 2015 | 0.2 |
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|
| Positions Played | MLB | 2014 | 1 |
| Intentional Bases on Balls | MLB | 2014 | 0 |
| Sacrifice Flies | MLB | 2014 | 0 |
| Sacrifice Hits | MLB | 2014 | 3 |
| Times Hit by a Pitch | MLB | 2014 | 0 |
| GIDP | MLB | 2014 | 0 |
| Total Bases | MLB | 2014 | 1 |
| Rbat+ | MLB | 2014 | -141 |
| rOBA | MLB | 2014 | .031 |
| OPS+ | MLB | 2014 | -81 |
| OPS | MLB | 2014 | .069 |
| SLG | MLB | 2014 | .034 |
| OBP | MLB | 2014 | .034 |
| Hits/At Bats | MLB | 2014 | .034 |
| Strikeouts | MLB | 2014 | 18 |
| Bases on Balls/Walks | MLB | 2014 | 0 |
| Caught Stealing | MLB | 2014 | 0 |
| Stolen Bases | MLB | 2014 | 0 |
| Runs Batted In | MLB | 2014 | 2 |
| Home Runs | MLB | 2014 | 0 |
| Triples | MLB | 2014 | 0 |
| Doubles | MLB | 2014 | 0 |
| Hits | MLB | 2014 | 1 |
| Runs Scored | MLB | 2014 | 1 |
| At Bats | MLB | 2014 | 29 |
| Plate Appearances | MLB | 2014 | 32 |
| Games Played | MLB | 2014 | 17 |
| Wins Above Replacement for position players | MLB | 2014 | -0.3 |
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| Positions Played | MLB | 2013 | 1 |
| Intentional Bases on Balls | MLB | 2013 | 0 |
| Sacrifice Flies | MLB | 2013 | 0 |
| Sacrifice Hits | MLB | 2013 | 1 |
| Times Hit by a Pitch | MLB | 2013 | 0 |
| GIDP | MLB | 2013 | 0 |
| Total Bases | MLB | 2013 | 3 |
| Rbat+ | MLB | 2013 | -59 |
| rOBA | MLB | 2013 | .125 |
| OPS+ | MLB | 2013 | -20 |
| OPS | MLB | 2013 | .286 |
| SLG | MLB | 2013 | .143 |
| OBP | MLB | 2013 | .143 |
| Hits/At Bats | MLB | 2013 | .143 |
| Strikeouts | MLB | 2013 | 10 |
| Bases on Balls/Walks | MLB | 2013 | 0 |
| Caught Stealing | MLB | 2013 | 0 |
| Stolen Bases | MLB | 2013 | 0 |
| Runs Batted In | MLB | 2013 | 3 |
| Home Runs | MLB | 2013 | 0 |
| Triples | MLB | 2013 | 0 |
| Doubles | MLB | 2013 | 0 |
| Hits | MLB | 2013 | 3 |
| Runs Scored | MLB | 2013 | 0 |
| At Bats | MLB | 2013 | 21 |
| Plate Appearances | MLB | 2013 | 22 |
| Games Played | MLB | 2013 | 15 |
| Wins Above Replacement for position players | MLB | 2013 | -0.1 |
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