Michael Bruce Fiers (/ˈfaɪərs/; born June 15, 1985) is an American professional baseball pitcher for the Leones de Yucatán of the Mexican League. He has played in Major League Baseball (MLB) for the Milwaukee Brewers, Houston Astros, Detroit Tigers and Oakland Athletics. Fiers has pitched two no-hitters (one in 2015 and the other in 2019), the latter being the 300th no-hitter in MLB history.
Fiers made his MLB debut September 14, 2011, for the Milwaukee Brewers.

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Former Youth Teams 
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| SO/BB | MLB | 2021 | 1.25 |
| SO9 | MLB | 2021 | 4.8 |
| BB9 | MLB | 2021 | 3.9 |
| HR9 | MLB | 2021 | 3.9 |
| H9 | MLB | 2021 | 14.5 |
| WHIP | MLB | 2021 | 2.036 |
| Fielding Independent Pitching | MLB | 2021 | 8.96 |
| ERA+ | MLB | 2021 | 55 |
| Batters Faced | MLB | 2021 | 45 |
| Wild Pitches | MLB | 2021 | 0 |
| Balks | MLB | 2021 | 0 |
| Times Hit by a Pitch | MLB | 2021 | 0 |
| Strikeouts | MLB | 2021 | 5 |
| Intentional Bases on Balls | MLB | 2021 | 0 |
| Bases on Balls/Walks | MLB | 2021 | 4 |
| Home Runs Allowed | MLB | 2021 | 4 |
| Earned Runs Allowed | MLB | 2021 | 8 |
| Runs Allowed | MLB | 2021 | 8 |
| Hits Allowed | MLB | 2021 | 15 |
| Innings Pitched | MLB | 2021 | 9.1 |
| Saves | MLB | 2021 | 0 |
| Shutouts | MLB | 2021 | 0 |
| Complete Games | MLB | 2021 | 0 |
| Games Finished | MLB | 2021 | 0 |
| Games Started | MLB | 2021 | 2 |
| Games Pitched | MLB | 2021 | 2 |
| ERA | MLB | 2021 | 7.71 |
| Win-Loss Percentage | MLB | 2021 | .000 |
| Loss | MLB | 2021 | 2 |
| Wins | MLB | 2021 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2021 | -0.2 |
|
|
| SO/BB | MLB | 2020 | 2.31 |
| SO9 | MLB | 2020 | 5.6 |
| BB9 | MLB | 2020 | 2.4 |
| HR9 | MLB | 2020 | 1.4 |
| H9 | MLB | 2020 | 9.9 |
| WHIP | MLB | 2020 | 1.373 |
| Fielding Independent Pitching | MLB | 2020 | 4.94 |
| ERA+ | MLB | 2020 | 91 |
| Batters Faced | MLB | 2020 | 257 |
| Wild Pitches | MLB | 2020 | 1 |
| Balks | MLB | 2020 | 0 |
| Times Hit by a Pitch | MLB | 2020 | 4 |
| Strikeouts | MLB | 2020 | 37 |
| Intentional Bases on Balls | MLB | 2020 | 0 |
| Bases on Balls/Walks | MLB | 2020 | 16 |
| Home Runs Allowed | MLB | 2020 | 9 |
| Earned Runs Allowed | MLB | 2020 | 30 |
| Runs Allowed | MLB | 2020 | 31 |
| Hits Allowed | MLB | 2020 | 65 |
| Innings Pitched | MLB | 2020 | 59.0 |
| Saves | MLB | 2020 | 0 |
| Shutouts | MLB | 2020 | 0 |
| Complete Games | MLB | 2020 | 0 |
| Games Finished | MLB | 2020 | 0 |
| Games Started | MLB | 2020 | 11 |
| Games Pitched | MLB | 2020 | 11 |
| ERA | MLB | 2020 | 4.58 |
| Win-Loss Percentage | MLB | 2020 | .667 |
| Loss | MLB | 2020 | 3 |
| Wins | MLB | 2020 | 6 |
| Wins Above Replacement for Pitchers | MLB | 2020 | 0.7 |
|
|
| SO/BB | MLB | 2019 | 2.38 |
| SO9 | MLB | 2019 | 6.1 |
| BB9 | MLB | 2019 | 2.6 |
| HR9 | MLB | 2019 | 1.5 |
| H9 | MLB | 2019 | 8.1 |
| WHIP | MLB | 2019 | 1.186 |
| Fielding Independent Pitching | MLB | 2019 | 4.97 |
| ERA+ | MLB | 2019 | 110 |
| Batters Faced | MLB | 2019 | 754 |
| Wild Pitches | MLB | 2019 | 13 |
| Balks | MLB | 2019 | 1 |
| Times Hit by a Pitch | MLB | 2019 | 9 |
| Strikeouts | MLB | 2019 | 126 |
| Intentional Bases on Balls | MLB | 2019 | 0 |
| Bases on Balls/Walks | MLB | 2019 | 53 |
| Home Runs Allowed | MLB | 2019 | 30 |
| Earned Runs Allowed | MLB | 2019 | 80 |
| Runs Allowed | MLB | 2019 | 82 |
| Hits Allowed | MLB | 2019 | 166 |
| Innings Pitched | MLB | 2019 | 184.2 |
| Saves | MLB | 2019 | 0 |
| Shutouts | MLB | 2019 | 1 |
| Complete Games | MLB | 2019 | 1 |
| Games Finished | MLB | 2019 | 0 |
| Games Started | MLB | 2019 | 33 |
| Games Pitched | MLB | 2019 | 33 |
| ERA | MLB | 2019 | 3.90 |
| Win-Loss Percentage | MLB | 2019 | .789 |
| Loss | MLB | 2019 | 4 |
| Wins | MLB | 2019 | 15 |
| Wins Above Replacement for Pitchers | MLB | 2019 | 3.4 |
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|
| SO/BB | MLB | 2018 | 3.35 |
| SO9 | MLB | 2018 | 6.6 |
| BB9 | MLB | 2018 | 2.0 |
| HR9 | MLB | 2018 | 1.5 |
| H9 | MLB | 2018 | 9.2 |
| WHIP | MLB | 2018 | 1.235 |
| Fielding Independent Pitching | MLB | 2018 | 4.66 |
| ERA+ | MLB | 2018 | 129 |
| Batters Faced | MLB | 2018 | 502 |
| Wild Pitches | MLB | 2018 | 2 |
| Balks | MLB | 2018 | 0 |
| Times Hit by a Pitch | MLB | 2018 | 5 |
| Strikeouts | MLB | 2018 | 87 |
| Intentional Bases on Balls | MLB | 2018 | 1 |
| Bases on Balls/Walks | MLB | 2018 | 26 |
| Home Runs Allowed | MLB | 2018 | 20 |
| Earned Runs Allowed | MLB | 2018 | 46 |
| Runs Allowed | MLB | 2018 | 49 |
| Hits Allowed | MLB | 2018 | 121 |
| Innings Pitched | MLB | 2018 | 119.0 |
| Saves | MLB | 2018 | 0 |
| Shutouts | MLB | 2018 | 0 |
| Complete Games | MLB | 2018 | 0 |
| Games Finished | MLB | 2018 | 0 |
| Games Started | MLB | 2018 | 21 |
| Games Pitched | MLB | 2018 | 21 |
| ERA | MLB | 2018 | 3.48 |
| Win-Loss Percentage | MLB | 2018 | .538 |
| Loss | MLB | 2018 | 6 |
| Wins | MLB | 2018 | 7 |
| Wins Above Replacement for Pitchers | MLB | 2018 | 3.4 |
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|
| SO/BB | MLB | 2017 | 2.35 |
| SO9 | MLB | 2017 | 8.6 |
| BB9 | MLB | 2017 | 3.6 |
| HR9 | MLB | 2017 | 1.9 |
| H9 | MLB | 2017 | 9.2 |
| WHIP | MLB | 2017 | 1.428 |
| Fielding Independent Pitching | MLB | 2017 | 5.43 |
| ERA+ | MLB | 2017 | 78 |
| Batters Faced | MLB | 2017 | 671 |
| Wild Pitches | MLB | 2017 | 11 |
| Balks | MLB | 2017 | 1 |
| Home Runs Allowed | MLB | 2017 | 32 |
| Earned Runs Allowed | MLB | 2017 | 89 |
| Runs Allowed | MLB | 2017 | 95 |
| Hits Allowed | MLB | 2017 | 157 |
| Innings Pitched | MLB | 2017 | 153.1 |
| Saves | MLB | 2017 | 0 |
| Shutouts | MLB | 2017 | 0 |
| Complete Games | MLB | 2017 | 0 |
| Games Finished | MLB | 2017 | 0 |
| Games Started | MLB | 2017 | 28 |
| Games Pitched | MLB | 2017 | 29 |
| ERA | MLB | 2017 | 5.22 |
| Win-Loss Percentage | MLB | 2017 | .444 |
| Loss | MLB | 2017 | 10 |
| Wins | MLB | 2017 | 8 |
| Wins Above Replacement for Pitchers | MLB | 2017 | -0.5 |
| Positions Played | MLB | 2017 | 1/H |
| Intentional Bases on Balls | MLB | 2017 | 0 |
| Sacrifice Flies | MLB | 2017 | 0 |
| Sacrifice Hits | MLB | 2017 | 0 |
| Times Hit by a Pitch | MLB | 2017 | 0 |
| GIDP | MLB | 2017 | 0 |
| Total Bases | MLB | 2017 | 0 |
| Rbat+ | MLB | 2017 | -133 |
| rOBA | MLB | 2017 | .000 |
| OPS+ | MLB | 2017 | -100 |
| OPS | MLB | 2017 | .000 |
| SLG | MLB | 2017 | .000 |
| OBP | MLB | 2017 | .000 |
| Hits/At Bats | MLB | 2017 | .000 |
| Strikeouts | MLB | 2017 | 1 |
| Bases on Balls/Walks | MLB | 2017 | 0 |
| Caught Stealing | MLB | 2017 | 0 |
| Stolen Bases | MLB | 2017 | 0 |
| Runs Batted In | MLB | 2017 | 0 |
| Home Runs | MLB | 2017 | 0 |
| Triples | MLB | 2017 | 0 |
| Doubles | MLB | 2017 | 0 |
| Hits | MLB | 2017 | 0 |
| Runs Scored | MLB | 2017 | 1 |
| At Bats | MLB | 2017 | 1 |
| Plate Appearances | MLB | 2017 | 1 |
| Games Played | MLB | 2017 | 2 |
| Wins Above Replacement for position players | MLB | 2017 | 0.0 |
|
|
| SO/BB | MLB | 2016 | 3.19 |
| SO9 | MLB | 2016 | 7.2 |
| BB9 | MLB | 2016 | 2.2 |
| HR9 | MLB | 2016 | 1.4 |
| H9 | MLB | 2016 | 10.0 |
| WHIP | MLB | 2016 | 1.358 |
| Fielding Independent Pitching | MLB | 2016 | 4.43 |
| ERA+ | MLB | 2016 | 88 |
| Batters Faced | MLB | 2016 | 724 |
| Wild Pitches | MLB | 2016 | 17 |
| Balks | MLB | 2016 | 0 |
| Times Hit by a Pitch | MLB | 2016 | 7 |
| Strikeouts | MLB | 2016 | 134 |
| Intentional Bases on Balls | MLB | 2016 | 0 |
| Bases on Balls/Walks | MLB | 2016 | 42 |
| Home Runs Allowed | MLB | 2016 | 26 |
| Earned Runs Allowed | MLB | 2016 | 84 |
| Runs Allowed | MLB | 2016 | 89 |
| Hits Allowed | MLB | 2016 | 187 |
| Innings Pitched | MLB | 2016 | 168.2 |
| Saves | MLB | 2016 | 0 |
| Shutouts | MLB | 2016 | 0 |
| Complete Games | MLB | 2016 | 0 |
| Games Finished | MLB | 2016 | 0 |
| Games Started | MLB | 2016 | 30 |
| Games Pitched | MLB | 2016 | 31 |
| ERA | MLB | 2016 | 4.48 |
| Win-Loss Percentage | MLB | 2016 | .579 |
| Loss | MLB | 2016 | 8 |
| Wins | MLB | 2016 | 11 |
| Wins Above Replacement for Pitchers | MLB | 2016 | 0.1 |
|
|
| SO/BB | MLB | 2015 | 2.81 |
| SO9 | MLB | 2015 | 8.5 |
| BB9 | MLB | 2015 | 3.0 |
| HR9 | MLB | 2015 | 1.4 |
| H9 | MLB | 2015 | 6.5 |
| WHIP | MLB | 2015 | 1.059 |
| Fielding Independent Pitching | MLB | 2015 | 4.39 |
| ERA+ | MLB | 2015 | 118 |
| Batters Faced | MLB | 2015 | 252 |
| Wild Pitches | MLB | 2015 | 2 |
| Balks | MLB | 2015 | 0 |
| Home Runs Allowed | MLB | 2015 | 10 |
| Earned Runs Allowed | MLB | 2015 | 23 |
| Runs Allowed | MLB | 2015 | 26 |
| Hits Allowed | MLB | 2015 | 45 |
| Innings Pitched | MLB | 2015 | 62.1 |
| Saves | MLB | 2015 | 0 |
| Shutouts | MLB | 2015 | 1 |
| Complete Games | MLB | 2015 | 1 |
| Games Finished | MLB | 2015 | 0 |
| Games Started | MLB | 2015 | 9 |
| Games Pitched | MLB | 2015 | 10 |
| ERA | MLB | 2015 | 3.32 |
| Win-Loss Percentage | MLB | 2015 | .667 |
| Loss | MLB | 2015 | 1 |
| Wins | MLB | 2015 | 2 |
| Wins Above Replacement for Pitchers | MLB | 2015 | 0.8 |
| Positions Played | MLB | 2015 | 1 |
| Intentional Bases on Balls | MLB | 2015 | 0 |
| Sacrifice Flies | MLB | 2015 | 0 |
| Sacrifice Hits | MLB | 2015 | 4 |
| Times Hit by a Pitch | MLB | 2015 | 0 |
| GIDP | MLB | 2015 | 0 |
| Total Bases | MLB | 2015 | 3 |
| Rbat+ | MLB | 2015 | -104 |
| rOBA | MLB | 2015 | .084 |
| OPS+ | MLB | 2015 | -45 |
| OPS | MLB | 2015 | .200 |
| SLG | MLB | 2015 | .100 |
| OBP | MLB | 2015 | .100 |
| Hits/At Bats | MLB | 2015 | .100 |
| Strikeouts | MLB | 2015 | 12 |
| Bases on Balls/Walks | MLB | 2015 | 0 |
| Caught Stealing | MLB | 2015 | 0 |
| Stolen Bases | MLB | 2015 | 0 |
| Runs Batted In | MLB | 2015 | 0 |
| Home Runs | MLB | 2015 | 0 |
| Triples | MLB | 2015 | 0 |
| Doubles | MLB | 2015 | 0 |
| Hits | MLB | 2015 | 3 |
| Runs Scored | MLB | 2015 | 0 |
| At Bats | MLB | 2015 | 30 |
| Plate Appearances | MLB | 2015 | 34 |
| Games Played | MLB | 2015 | 18 |
| 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 | 7 |
| Times Hit by a Pitch | MLB | 2014 | 0 |
| GIDP | MLB | 2014 | 0 |
| Total Bases | MLB | 2014 | 1 |
| Rbat+ | MLB | 2014 | -186 |
| rOBA | MLB | 2014 | .048 |
| OPS+ | MLB | 2014 | -71 |
| OPS | MLB | 2014 | .105 |
| SLG | MLB | 2014 | .053 |
| OBP | MLB | 2014 | .053 |
| Hits/At Bats | MLB | 2014 | .053 |
| Strikeouts | MLB | 2014 | 11 |
| Bases on Balls/Walks | MLB | 2014 | 0 |
| Caught Stealing | MLB | 2014 | 0 |
| Stolen Bases | MLB | 2014 | 0 |
| Runs Batted In | MLB | 2014 | 0 |
| Home Runs | MLB | 2014 | 0 |
| Triples | MLB | 2014 | 0 |
| Doubles | MLB | 2014 | 0 |
| Hits | MLB | 2014 | 1 |
| Runs Scored | MLB | 2014 | 0 |
| At Bats | MLB | 2014 | 19 |
| Plate Appearances | MLB | 2014 | 26 |
| Games Played | MLB | 2014 | 14 |
| Wins Above Replacement for position players | MLB | 2014 | -0.3 |
|
|
| 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 | 0 |
| Rbat+ | MLB | 2013 | -215 |
| rOBA | MLB | 2013 | .000 |
| OPS+ | MLB | 2013 | -100 |
| OPS | MLB | 2013 | .000 |
| SLG | MLB | 2013 | .000 |
| OBP | MLB | 2013 | .000 |
| Hits/At Bats | MLB | 2013 | .000 |
| Strikeouts | MLB | 2013 | 4 |
| Bases on Balls/Walks | MLB | 2013 | 0 |
| Caught Stealing | MLB | 2013 | 0 |
| Stolen Bases | MLB | 2013 | 0 |
| Runs Batted In | MLB | 2013 | 0 |
| Home Runs | MLB | 2013 | 0 |
| Triples | MLB | 2013 | 0 |
| Doubles | MLB | 2013 | 0 |
| Hits | MLB | 2013 | 0 |
| Runs Scored | MLB | 2013 | 0 |
| At Bats | MLB | 2013 | 4 |
| Plate Appearances | MLB | 2013 | 5 |
| Games Played | MLB | 2013 | 11 |
| Wins Above Replacement for position players | MLB | 2013 | -0.1 |
|
|
| Positions Played | MLB | 2012 | 1 |
| Intentional Bases on Balls | MLB | 2012 | 0 |
| Sacrifice Flies | MLB | 2012 | 0 |
| Sacrifice Hits | MLB | 2012 | 6 |
| Times Hit by a Pitch | MLB | 2012 | 0 |
| GIDP | MLB | 2012 | 0 |
| Total Bases | MLB | 2012 | 3 |
| Rbat+ | MLB | 2012 | -124 |
| rOBA | MLB | 2012 | .082 |
| OPS+ | MLB | 2012 | -50 |
| OPS | MLB | 2012 | .188 |
| SLG | MLB | 2012 | .094 |
| OBP | MLB | 2012 | .094 |
| Hits/At Bats | MLB | 2012 | .094 |
| Strikeouts | MLB | 2012 | 17 |
| Bases on Balls/Walks | MLB | 2012 | 0 |
| Caught Stealing | MLB | 2012 | 0 |
| Stolen Bases | MLB | 2012 | 0 |
| Runs Batted In | MLB | 2012 | 2 |
| Home Runs | MLB | 2012 | 0 |
| Triples | MLB | 2012 | 0 |
| Doubles | MLB | 2012 | 0 |
| Hits | MLB | 2012 | 3 |
| Runs Scored | MLB | 2012 | 0 |
| At Bats | MLB | 2012 | 32 |
| Plate Appearances | MLB | 2012 | 38 |
| Games Played | MLB | 2012 | 21 |
| Wins Above Replacement for position players | MLB | 2012 | -0.3 |
|