Mason Jordan Williams (born August 21, 1991) is an American professional baseball outfielder who is a free agent. He has played in Major League Baseball (MLB) for the New York Yankees, Cincinnati Reds, Baltimore Orioles and New York Mets.

Trophies 
Milestones
Former Youth Teams 
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| Positions Played | MLB | 2021 | 8/H7 |
| Intentional Bases on Balls | MLB | 2021 | 1 |
| Sacrifice Flies | MLB | 2021 | 0 |
| Sacrifice Hits | MLB | 2021 | 0 |
| Times Hit by a Pitch | MLB | 2021 | 0 |
| GIDP | MLB | 2021 | 1 |
| Total Bases | MLB | 2021 | 11 |
| Rbat+ | MLB | 2021 | 60 |
| rOBA | MLB | 2021 | .254 |
| OPS+ | MLB | 2021 | 73 |
| OPS | MLB | 2021 | .631 |
| SLG | MLB | 2021 | .333 |
| OBP | MLB | 2021 | .297 |
| Hits/At Bats | MLB | 2021 | .212 |
| Strikeouts | MLB | 2021 | 9 |
| Bases on Balls/Walks | MLB | 2021 | 4 |
| Caught Stealing | MLB | 2021 | 1 |
| Stolen Bases | MLB | 2021 | 0 |
| Runs Batted In | MLB | 2021 | 1 |
| Home Runs | MLB | 2021 | 1 |
| Triples | MLB | 2021 | 0 |
| Doubles | MLB | 2021 | 1 |
| Hits | MLB | 2021 | 7 |
| Runs Scored | MLB | 2021 | 3 |
| At Bats | MLB | 2021 | 33 |
| Plate Appearances | MLB | 2021 | 37 |
| Games Played | MLB | 2021 | 17 |
| Wins Above Replacement for position players | MLB | 2021 | 0.0 |
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| Positions Played | MLB | 2020 | /78H9 |
| Intentional Bases on Balls | MLB | 2020 | 0 |
| Sacrifice Flies | MLB | 2020 | 0 |
| Sacrifice Hits | MLB | 2020 | 0 |
| Times Hit by a Pitch | MLB | 2020 | 0 |
| GIDP | MLB | 2020 | 0 |
| Total Bases | MLB | 2020 | 4 |
| Rbat+ | MLB | 2020 | -34 |
| rOBA | MLB | 2020 | .108 |
| OPS+ | MLB | 2020 | -13 |
| OPS | MLB | 2020 | .333 |
| SLG | MLB | 2020 | .222 |
| OBP | MLB | 2020 | .111 |
| Hits/At Bats | MLB | 2020 | .111 |
| Strikeouts | MLB | 2020 | 9 |
| Bases on Balls/Walks | MLB | 2020 | 0 |
| Caught Stealing | MLB | 2020 | 1 |
| Stolen Bases | MLB | 2020 | 0 |
| Runs Batted In | MLB | 2020 | 0 |
| Home Runs | MLB | 2020 | 0 |
| Triples | MLB | 2020 | 1 |
| Doubles | MLB | 2020 | 0 |
| Hits | MLB | 2020 | 2 |
| Runs Scored | MLB | 2020 | 0 |
| At Bats | MLB | 2020 | 18 |
| Plate Appearances | MLB | 2020 | 18 |
| Games Played | MLB | 2020 | 10 |
| Wins Above Replacement for position players | MLB | 2020 | -0.3 |
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| Positions Played | MLB | 2019 | /8H79D |
| Intentional Bases on Balls | MLB | 2019 | 0 |
| Sacrifice Flies | MLB | 2019 | 1 |
| Sacrifice Hits | MLB | 2019 | 0 |
| Times Hit by a Pitch | MLB | 2019 | 0 |
| GIDP | MLB | 2019 | 0 |
| Total Bases | MLB | 2019 | 9 |
| Rbat+ | MLB | 2019 | 63 |
| rOBA | MLB | 2019 | .284 |
| OPS+ | MLB | 2019 | 68 |
| OPS | MLB | 2019 | .624 |
| SLG | MLB | 2019 | .300 |
| OBP | MLB | 2019 | .324 |
| Hits/At Bats | MLB | 2019 | .267 |
| Strikeouts | MLB | 2019 | 6 |
| Bases on Balls/Walks | MLB | 2019 | 3 |
| Caught Stealing | MLB | 2019 | 0 |
| Stolen Bases | MLB | 2019 | 1 |
| 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 | 4 |
| At Bats | MLB | 2019 | 30 |
| Plate Appearances | MLB | 2019 | 34 |
| Games Played | MLB | 2019 | 11 |
| Wins Above Replacement for position players | MLB | 2019 | -0.1 |
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| Positions Played | MLB | 2018 | 9H8/7 |
| Intentional Bases on Balls | MLB | 2018 | 1 |
| Sacrifice Flies | MLB | 2018 | 0 |
| Sacrifice Hits | MLB | 2018 | 2 |
| Times Hit by a Pitch | MLB | 2018 | 0 |
| GIDP | MLB | 2018 | 5 |
| Total Bases | MLB | 2018 | 49 |
| Rbat+ | MLB | 2018 | 87 |
| rOBA | MLB | 2018 | .310 |
| OPS+ | MLB | 2018 | 95 |
| OPS | MLB | 2018 | .729 |
| SLG | MLB | 2018 | .398 |
| OBP | MLB | 2018 | .331 |
| Hits/At Bats | MLB | 2018 | .293 |
| Strikeouts | MLB | 2018 | 29 |
| Bases on Balls/Walks | MLB | 2018 | 7 |
| Caught Stealing | MLB | 2018 | 2 |
| Stolen Bases | MLB | 2018 | 1 |
| Runs Batted In | MLB | 2018 | 6 |
| Home Runs | MLB | 2018 | 2 |
| Triples | MLB | 2018 | 1 |
| Doubles | MLB | 2018 | 5 |
| Hits | MLB | 2018 | 36 |
| Runs Scored | MLB | 2018 | 10 |
| At Bats | MLB | 2018 | 123 |
| Plate Appearances | MLB | 2018 | 132 |
| Games Played | MLB | 2018 | 51 |
| Wins Above Replacement for position players | MLB | 2018 | 0.2 |
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| Positions Played | MLB | 2017 | /89 |
| 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 | 4 |
| Rbat+ | MLB | 2017 | 39 |
| rOBA | MLB | 2017 | .279 |
| OPS+ | MLB | 2017 | 46 |
| OPS | MLB | 2017 | .544 |
| SLG | MLB | 2017 | .250 |
| OBP | MLB | 2017 | .294 |
| Hits/At Bats | MLB | 2017 | .250 |
| Strikeouts | MLB | 2017 | 2 |
| Bases on Balls/Walks | MLB | 2017 | 1 |
| Caught Stealing | MLB | 2017 | 0 |
| Stolen Bases | MLB | 2017 | 2 |
| Runs Batted In | MLB | 2017 | 1 |
| Home Runs | MLB | 2017 | 0 |
| Triples | MLB | 2017 | 0 |
| Doubles | MLB | 2017 | 0 |
| Hits | MLB | 2017 | 4 |
| Runs Scored | MLB | 2017 | 3 |
| At Bats | MLB | 2017 | 16 |
| Plate Appearances | MLB | 2017 | 17 |
| Games Played | MLB | 2017 | 5 |
| Wins Above Replacement for position players | MLB | 2017 | -0.3 |
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| Positions Played | MLB | 2016 | /978HD |
| Intentional Bases on Balls | MLB | 2016 | 0 |
| Sacrifice Flies | MLB | 2016 | 0 |
| Sacrifice Hits | MLB | 2016 | 1 |
| Times Hit by a Pitch | MLB | 2016 | 0 |
| GIDP | MLB | 2016 | 0 |
| Total Bases | MLB | 2016 | 9 |
| Rbat+ | MLB | 2016 | 70 |
| rOBA | MLB | 2016 | .292 |
| OPS+ | MLB | 2016 | 76 |
| OPS | MLB | 2016 | .655 |
| SLG | MLB | 2016 | .333 |
| OBP | MLB | 2016 | .321 |
| Hits/At Bats | MLB | 2016 | .296 |
| Strikeouts | MLB | 2016 | 12 |
| Bases on Balls/Walks | MLB | 2016 | 1 |
| Caught Stealing | MLB | 2016 | 0 |
| Stolen Bases | MLB | 2016 | 0 |
| Runs Batted In | MLB | 2016 | 2 |
| Home Runs | MLB | 2016 | 0 |
| Triples | MLB | 2016 | 0 |
| Doubles | MLB | 2016 | 1 |
| Hits | MLB | 2016 | 8 |
| Runs Scored | MLB | 2016 | 4 |
| At Bats | MLB | 2016 | 27 |
| Plate Appearances | MLB | 2016 | 29 |
| Games Played | MLB | 2016 | 12 |
| Wins Above Replacement for position players | MLB | 2016 | -0.1 |
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| Positions Played | MLB | 2015 | /8 |
| 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 | 12 |
| Rbat+ | MLB | 2015 | 134 |
| rOBA | MLB | 2015 | .371 |
| OPS+ | MLB | 2015 | 137 |
| OPS | MLB | 2015 | .890 |
| SLG | MLB | 2015 | .571 |
| OBP | MLB | 2015 | .318 |
| Hits/At Bats | MLB | 2015 | .286 |
| Strikeouts | MLB | 2015 | 3 |
| Bases on Balls/Walks | MLB | 2015 | 1 |
| Caught Stealing | MLB | 2015 | 0 |
| Stolen Bases | MLB | 2015 | 0 |
| Runs Batted In | MLB | 2015 | 3 |
| Home Runs | MLB | 2015 | 1 |
| Triples | MLB | 2015 | 0 |
| Doubles | MLB | 2015 | 3 |
| Hits | MLB | 2015 | 6 |
| Runs Scored | MLB | 2015 | 3 |
| At Bats | MLB | 2015 | 21 |
| Plate Appearances | MLB | 2015 | 22 |
| Games Played | MLB | 2015 | 8 |
| Wins Above Replacement for position players | MLB | 2015 | 0.1 |
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