Marco Elias Gonzales (born February 16, 1992) is an American professional baseball pitcher who is a free agent. He has previously played in Major League Baseball (MLB) for the St. Louis Cardinals, Seattle Mariners and Pittsburgh Pirates. He attended Gonzaga University, where he played college baseball for the Gonzaga Bulldogs as a pitcher and first baseman.
At Gonzaga, Gonzales won the West Coast Conference Player of the Year, Pitcher of the Year, and Freshman of the Year awards. Gonzales also was chosen as an All-American and named the John Olerud Award winner for 2013. The Cardinals selected him with the 19th overall pick in the first round of the June 2013 MLB draft. In Minor League Baseball in 2014, he was a Texas League midseason All-Star and Pitcher of the Week selection and the Cardinals' Minor League Pitcher of the Year. He made his MLB debut in 2014, and underwent Tommy John surgery in 2016 for a torn ulnar collateral ligament in his left elbow. The Cardinals traded him to the Mariners in 2017.
Gonzales made his MLB debut June 25, 2014, for the St. Louis Cardinals.

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Former Youth Teams 
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| SO/BB | MLB | 2023 | 1.89 |
| SO9 | MLB | 2023 | 6.1 |
| BB9 | MLB | 2023 | 3.2 |
| HR9 | MLB | 2023 | 0.9 |
| H9 | MLB | 2023 | 9.9 |
| WHIP | MLB | 2023 | 1.460 |
| Fielding Independent Pitching | MLB | 2023 | 4.28 |
| ERA+ | MLB | 2023 | 76 |
| Batters Faced | MLB | 2023 | 215 |
| Wild Pitches | MLB | 2023 | 0 |
| Balks | MLB | 2023 | 0 |
| Times Hit by a Pitch | MLB | 2023 | 0 |
| Strikeouts | MLB | 2023 | 34 |
| Intentional Bases on Balls | MLB | 2023 | 0 |
| Bases on Balls/Walks | MLB | 2023 | 18 |
| Home Runs Allowed | MLB | 2023 | 5 |
| Earned Runs Allowed | MLB | 2023 | 29 |
| Runs Allowed | MLB | 2023 | 32 |
| Hits Allowed | MLB | 2023 | 55 |
| Innings Pitched | MLB | 2023 | 50.0 |
| Saves | MLB | 2023 | 0 |
| Shutouts | MLB | 2023 | 0 |
| Complete Games | MLB | 2023 | 0 |
| Games Finished | MLB | 2023 | 0 |
| Games Started | MLB | 2023 | 10 |
| Games Pitched | MLB | 2023 | 10 |
| ERA | MLB | 2023 | 5.22 |
| Win-Loss Percentage | MLB | 2023 | .800 |
| Loss | MLB | 2023 | 1 |
| Wins | MLB | 2023 | 4 |
| Wins Above Replacement for Pitchers | MLB | 2023 | -0.5 |
|
|
| SO/BB | MLB | 2022 | 2.06 |
| SO9 | MLB | 2022 | 5.1 |
| BB9 | MLB | 2022 | 2.5 |
| HR9 | MLB | 2022 | 1.5 |
| H9 | MLB | 2022 | 9.5 |
| WHIP | MLB | 2022 | 1.333 |
| Fielding Independent Pitching | MLB | 2022 | 5.05 |
| ERA+ | MLB | 2022 | 90 |
| Batters Faced | MLB | 2022 | 783 |
| Wild Pitches | MLB | 2022 | 1 |
| Balks | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 7 |
| Strikeouts | MLB | 2022 | 103 |
| Intentional Bases on Balls | MLB | 2022 | 1 |
| Bases on Balls/Walks | MLB | 2022 | 50 |
| Home Runs Allowed | MLB | 2022 | 30 |
| Earned Runs Allowed | MLB | 2022 | 84 |
| Runs Allowed | MLB | 2022 | 97 |
| Hits Allowed | MLB | 2022 | 194 |
| Innings Pitched | MLB | 2022 | 183.0 |
| Saves | MLB | 2022 | 0 |
| Shutouts | MLB | 2022 | 0 |
| Complete Games | MLB | 2022 | 0 |
| Games Finished | MLB | 2022 | 0 |
| Games Started | MLB | 2022 | 32 |
| Games Pitched | MLB | 2022 | 32 |
| ERA | MLB | 2022 | 4.13 |
| Win-Loss Percentage | MLB | 2022 | .400 |
| Loss | MLB | 2022 | 15 |
| Wins | MLB | 2022 | 10 |
| Wins Above Replacement for Pitchers | MLB | 2022 | -0.1 |
|
|
| SO/BB | MLB | 2021 | 2.57 |
| SO9 | MLB | 2021 | 6.8 |
| BB9 | MLB | 2021 | 2.6 |
| HR9 | MLB | 2021 | 1.8 |
| H9 | MLB | 2021 | 7.8 |
| WHIP | MLB | 2021 | 1.165 |
| Fielding Independent Pitching | MLB | 2021 | 5.28 |
| ERA+ | MLB | 2021 | 104 |
| Batters Faced | MLB | 2021 | 585 |
| Wild Pitches | MLB | 2021 | 1 |
| Balks | MLB | 2021 | 0 |
| Home Runs Allowed | MLB | 2021 | 29 |
| Earned Runs Allowed | MLB | 2021 | 63 |
| Runs Allowed | MLB | 2021 | 64 |
| Hits Allowed | MLB | 2021 | 125 |
| Innings Pitched | MLB | 2021 | 143.1 |
| Saves | MLB | 2021 | 0 |
| Shutouts | MLB | 2021 | 0 |
| Complete Games | MLB | 2021 | 1 |
| Games Finished | MLB | 2021 | 0 |
| Games Started | MLB | 2021 | 25 |
| Games Pitched | MLB | 2021 | 25 |
| ERA | MLB | 2021 | 3.96 |
| Win-Loss Percentage | MLB | 2021 | .625 |
| Loss | MLB | 2021 | 6 |
| Wins | MLB | 2021 | 10 |
| Wins Above Replacement for Pitchers | MLB | 2021 | 2.1 |
| 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 | 0 |
| Rbat+ | MLB | 2021 | -121 |
| 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 | 2 |
| 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 | 4 |
| Plate Appearances | MLB | 2021 | 4 |
| Games Played | MLB | 2021 | 2 |
| Wins Above Replacement for position players | MLB | 2021 | 0.0 |
|
|
| SO/BB | MLB | 2020 | 9.14 |
| SO9 | MLB | 2020 | 8.3 |
| BB9 | MLB | 2020 | 0.9 |
| HR9 | MLB | 2020 | 1.0 |
| H9 | MLB | 2020 | 7.6 |
| WHIP | MLB | 2020 | 0.947 |
| Fielding Independent Pitching | MLB | 2020 | 3.32 |
| ERA+ | MLB | 2020 | 138 |
| Batters Faced | MLB | 2020 | 277 |
| Wild Pitches | MLB | 2020 | 0 |
| Balks | MLB | 2020 | 0 |
| Times Hit by a Pitch | MLB | 2020 | 4 |
| Strikeouts | MLB | 2020 | 64 |
| Intentional Bases on Balls | MLB | 2020 | 0 |
| Bases on Balls/Walks | MLB | 2020 | 7 |
| Home Runs Allowed | MLB | 2020 | 8 |
| Earned Runs Allowed | MLB | 2020 | 24 |
| Runs Allowed | MLB | 2020 | 27 |
| Hits Allowed | MLB | 2020 | 59 |
| Innings Pitched | MLB | 2020 | 69.2 |
| Saves | MLB | 2020 | 0 |
| Shutouts | MLB | 2020 | 0 |
| Complete Games | MLB | 2020 | 1 |
| Games Finished | MLB | 2020 | 0 |
| Games Started | MLB | 2020 | 11 |
| Games Pitched | MLB | 2020 | 11 |
| ERA | MLB | 2020 | 3.10 |
| Win-Loss Percentage | MLB | 2020 | .778 |
| Loss | MLB | 2020 | 2 |
| Wins | MLB | 2020 | 7 |
| Wins Above Replacement for Pitchers | MLB | 2020 | 1.5 |
|
|
| SO/BB | MLB | 2019 | 2.63 |
| SO9 | MLB | 2019 | 6.5 |
| BB9 | MLB | 2019 | 2.5 |
| HR9 | MLB | 2019 | 1.0 |
| H9 | MLB | 2019 | 9.3 |
| WHIP | MLB | 2019 | 1.310 |
| Fielding Independent Pitching | MLB | 2019 | 4.15 |
| ERA+ | MLB | 2019 | 109 |
| Batters Faced | MLB | 2019 | 866 |
| Wild Pitches | MLB | 2019 | 2 |
| Balks | MLB | 2019 | 1 |
| Home Runs Allowed | MLB | 2019 | 23 |
| Earned Runs Allowed | MLB | 2019 | 90 |
| Runs Allowed | MLB | 2019 | 106 |
| Hits Allowed | MLB | 2019 | 210 |
| Innings Pitched | MLB | 2019 | 203.0 |
| Saves | MLB | 2019 | 0 |
| Shutouts | MLB | 2019 | 0 |
| Complete Games | MLB | 2019 | 0 |
| Games Finished | MLB | 2019 | 0 |
| Games Started | MLB | 2019 | 34 |
| Games Pitched | MLB | 2019 | 34 |
| ERA | MLB | 2019 | 3.99 |
| Win-Loss Percentage | MLB | 2019 | .552 |
| Loss | MLB | 2019 | 13 |
| Wins | MLB | 2019 | 16 |
| Wins Above Replacement for Pitchers | MLB | 2019 | 3.0 |
| 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 | 2 |
| Rbat+ | MLB | 2019 | 184 |
| rOBA | MLB | 2019 | .420 |
| OPS+ | MLB | 2019 | 57 |
| OPS | MLB | 2019 | .600 |
| SLG | MLB | 2019 | .400 |
| OBP | MLB | 2019 | .200 |
| Hits/At Bats | MLB | 2019 | .200 |
| Strikeouts | MLB | 2019 | 4 |
| 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 | 1 |
| Hits | MLB | 2019 | 1 |
| Runs Scored | MLB | 2019 | 1 |
| At Bats | MLB | 2019 | 5 |
| Plate Appearances | MLB | 2019 | 6 |
| Games Played | MLB | 2019 | 2 |
| Wins Above Replacement for position players | MLB | 2019 | 0.1 |
|
|
| SO/BB | MLB | 2018 | 4.53 |
| SO9 | MLB | 2018 | 7.8 |
| BB9 | MLB | 2018 | 1.7 |
| HR9 | MLB | 2018 | 0.9 |
| H9 | MLB | 2018 | 9.3 |
| WHIP | MLB | 2018 | 1.224 |
| Fielding Independent Pitching | MLB | 2018 | 3.43 |
| ERA+ | MLB | 2018 | 102 |
| Batters Faced | MLB | 2018 | 686 |
| Wild Pitches | MLB | 2018 | 2 |
| Balks | MLB | 2018 | 0 |
| Home Runs Allowed | MLB | 2018 | 17 |
| Earned Runs Allowed | MLB | 2018 | 74 |
| Runs Allowed | MLB | 2018 | 76 |
| Hits Allowed | MLB | 2018 | 172 |
| Innings Pitched | MLB | 2018 | 166.2 |
| Saves | MLB | 2018 | 0 |
| Shutouts | MLB | 2018 | 0 |
| Complete Games | MLB | 2018 | 1 |
| Games Finished | MLB | 2018 | 0 |
| Games Started | MLB | 2018 | 29 |
| Games Pitched | MLB | 2018 | 29 |
| ERA | MLB | 2018 | 4.00 |
| Win-Loss Percentage | MLB | 2018 | .591 |
| Loss | MLB | 2018 | 9 |
| Wins | MLB | 2018 | 13 |
| Wins Above Replacement for Pitchers | MLB | 2018 | 2.3 |
| Positions Played | MLB | 2018 | 1 |
| Intentional Bases on Balls | MLB | 2018 | 0 |
| Sacrifice Flies | MLB | 2018 | 0 |
| Sacrifice Hits | MLB | 2018 | 1 |
| Times Hit by a Pitch | MLB | 2018 | 0 |
| GIDP | MLB | 2018 | 0 |
| Total Bases | MLB | 2018 | 0 |
| Rbat+ | MLB | 2018 | -243 |
| rOBA | MLB | 2018 | .000 |
| OPS+ | MLB | 2018 | -100 |
| OPS | MLB | 2018 | .000 |
| SLG | MLB | 2018 | .000 |
| OBP | MLB | 2018 | .000 |
| Hits/At Bats | MLB | 2018 | .000 |
| Strikeouts | MLB | 2018 | 2 |
| Bases on Balls/Walks | MLB | 2018 | 0 |
| Caught Stealing | MLB | 2018 | 0 |
| Stolen Bases | MLB | 2018 | 0 |
| Runs Batted In | MLB | 2018 | 0 |
| Home Runs | MLB | 2018 | 0 |
| Triples | MLB | 2018 | 0 |
| Doubles | MLB | 2018 | 0 |
| Hits | MLB | 2018 | 0 |
| Runs Scored | MLB | 2018 | 0 |
| At Bats | MLB | 2018 | 2 |
| Plate Appearances | MLB | 2018 | 3 |
| Games Played | MLB | 2018 | 1 |
| Wins Above Replacement for position players | MLB | 2018 | 0.0 |
|
|
| SO/BB | MLB | 2017 | 2.73 |
| SO9 | MLB | 2017 | 7.4 |
| BB9 | MLB | 2017 | 2.7 |
| HR9 | MLB | 2017 | 1.2 |
| H9 | MLB | 2017 | 13.0 |
| WHIP | MLB | 2017 | 1.745 |
| Fielding Independent Pitching | MLB | 2017 | 4.28 |
| ERA+ | MLB | 2017 | 78 |
| Batters Faced | MLB | 2017 | 169 |
| Wild Pitches | MLB | 2017 | 2 |
| Balks | MLB | 2017 | 0 |
| Home Runs Allowed | MLB | 2017 | 5 |
| Earned Runs Allowed | MLB | 2017 | 22 |
| Runs Allowed | MLB | 2017 | 22 |
| Hits Allowed | MLB | 2017 | 53 |
| Innings Pitched | MLB | 2017 | 36.2 |
| Saves | MLB | 2017 | 0 |
| Shutouts | MLB | 2017 | 0 |
| Complete Games | MLB | 2017 | 0 |
| Games Finished | MLB | 2017 | 1 |
| Games Started | MLB | 2017 | 7 |
| Games Pitched | MLB | 2017 | 10 |
| ERA | MLB | 2017 | 5.40 |
| Win-Loss Percentage | MLB | 2017 | .500 |
| Loss | MLB | 2017 | 1 |
| Wins | MLB | 2017 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2017 | 0.0 |
| Positions Played | MLB | 2017 | /1 |
| 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 | 1 |
| Rbat+ | MLB | 2017 | 500 |
| rOBA | MLB | 2017 | .896 |
| OPS+ | MLB | 2017 | 433 |
| OPS | MLB | 2017 | 2.000 |
| SLG | MLB | 2017 | 1.000 |
| OBP | MLB | 2017 | 1.000 |
| Hits/At Bats | MLB | 2017 | 1.000 |
| Strikeouts | MLB | 2017 | 0 |
| 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 | 1 |
| Runs Scored | MLB | 2017 | 0 |
| At Bats | MLB | 2017 | 1 |
| Plate Appearances | MLB | 2017 | 1 |
| Games Played | MLB | 2017 | 1 |
| Wins Above Replacement for position players | MLB | 2017 | 0.1 |
|
|
| Positions Played | MLB | 2015 | /1 |
| Intentional Bases on Balls | MLB | 2015 | 0 |
| Sacrifice Flies | MLB | 2015 | 0 |
| Sacrifice Hits | MLB | 2015 | 0 |
| Times Hit by a Pitch | MLB | 2015 | 0 |
| GIDP | MLB | 2015 | 0 |
| Total Bases | MLB | 2015 | 0 |
| Strikeouts | MLB | 2015 | 0 |
| 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 | 0 |
| Runs Scored | MLB | 2015 | 0 |
| At Bats | MLB | 2015 | 0 |
| Plate Appearances | MLB | 2015 | 0 |
| Games Played | MLB | 2015 | 1 |
| Wins Above Replacement for position players | MLB | 2015 | 0.0 |
|
|
| Positions Played | MLB | 2014 | 1 |
| Intentional Bases on Balls | MLB | 2014 | 0 |
| Sacrifice Flies | MLB | 2014 | 0 |
| Sacrifice Hits | MLB | 2014 | 2 |
| Times Hit by a Pitch | MLB | 2014 | 0 |
| GIDP | MLB | 2014 | 0 |
| Total Bases | MLB | 2014 | 5 |
| Rbat+ | MLB | 2014 | 121 |
| rOBA | MLB | 2014 | .347 |
| OPS+ | MLB | 2014 | 120 |
| OPS | MLB | 2014 | .800 |
| SLG | MLB | 2014 | .500 |
| OBP | MLB | 2014 | .300 |
| Hits/At Bats | MLB | 2014 | .300 |
| Strikeouts | MLB | 2014 | 2 |
| 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 | 2 |
| Hits | MLB | 2014 | 3 |
| Runs Scored | MLB | 2014 | 1 |
| At Bats | MLB | 2014 | 10 |
| Plate Appearances | MLB | 2014 | 12 |
| Games Played | MLB | 2014 | 10 |
| Wins Above Replacement for position players | MLB | 2014 | 0.2 |
|