
Matthew David Barnes (born June 17, 1990) is an American professional baseball pitcher who is a free agent.
He has previously played in Major League Baseball (MLB) for the Boston Red Sox and Miami Marlins. Listed at 6 feet 4 inches (1.93 m) and 210 pounds (95 kg), he bats and throws right-handed.
Barnes throws a high-90s four-seam fastball, a curveball, and a changeup. Prior to being drafted by the Red Sox in the first round of the 2011 Major League Baseball draft, he played college baseball at University of Connecticut, where he was named a First Team All-American.
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| 2018 |
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| 2014-2022 | Permanent | - | - | ||
| 2023 | Permanent | - | - | ||
| 2024 | Permanent | - | - |
| No records found |
| No records found |


| SO/BB | MLB | 2022 | 1.62 |
| SO9 | MLB | 2022 | 7.7 |
| BB9 | MLB | 2022 | 4.8 |
| HR9 | MLB | 2022 | 0.5 |
| H9 | MLB | 2022 | 8.2 |
| WHIP | MLB | 2022 | 1.437 |
| Fielding Independent Pitching | MLB | 2022 | 3.87 |
| ERA+ | MLB | 2022 | 98 |
| Batters Faced | MLB | 2022 | 176 |
| Wild Pitches | MLB | 2022 | 4 |
| Balks | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 3 |
| Strikeouts | MLB | 2022 | 34 |
| Intentional Bases on Balls | MLB | 2022 | 1 |
| Bases on Balls/Walks | MLB | 2022 | 21 |
| Home Runs Allowed | MLB | 2022 | 2 |
| Earned Runs Allowed | MLB | 2022 | 19 |
| Runs Allowed | MLB | 2022 | 22 |
| Hits Allowed | MLB | 2022 | 36 |
| Innings Pitched | MLB | 2022 | 39.2 |
| Saves | MLB | 2022 | 8 |
| Shutouts | MLB | 2022 | 0 |
| Complete Games | MLB | 2022 | 0 |
| Games Finished | MLB | 2022 | 16 |
| Games Started | MLB | 2022 | 0 |
| Games Pitched | MLB | 2022 | 44 |
| ERA | MLB | 2022 | 4.31 |
| Win-Loss Percentage | MLB | 2022 | .000 |
| Loss | MLB | 2022 | 4 |
| Wins | MLB | 2022 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2022 | 0.2 |
| SO/BB | MLB | 2020 | 2.21 |
| SO9 | MLB | 2020 | 12.1 |
| BB9 | MLB | 2020 | 5.5 |
| HR9 | MLB | 2020 | 1.6 |
| H9 | MLB | 2020 | 7.0 |
| WHIP | MLB | 2020 | 1.391 |
| Fielding Independent Pitching | MLB | 2020 | 4.84 |
| ERA+ | MLB | 2020 | 113 |
| Batters Faced | MLB | 2020 | 102 |
| Wild Pitches | MLB | 2020 | 4 |
| Balks | MLB | 2020 | 0 |
| Times Hit by a Pitch | MLB | 2020 | 2 |
| Strikeouts | MLB | 2020 | 31 |
| Intentional Bases on Balls | MLB | 2020 | 1 |
| Bases on Balls/Walks | MLB | 2020 | 14 |
| Home Runs Allowed | MLB | 2020 | 4 |
| Earned Runs Allowed | MLB | 2020 | 11 |
| Runs Allowed | MLB | 2020 | 13 |
| Hits Allowed | MLB | 2020 | 18 |
| Innings Pitched | MLB | 2020 | 23.0 |
| Saves | MLB | 2020 | 9 |
| Shutouts | MLB | 2020 | 0 |
| Complete Games | MLB | 2020 | 0 |
| Games Finished | MLB | 2020 | 14 |
| Games Started | MLB | 2020 | 0 |
| Games Pitched | MLB | 2020 | 24 |
| ERA | MLB | 2020 | 4.30 |
| Win-Loss Percentage | MLB | 2020 | .250 |
| Loss | MLB | 2020 | 3 |
| Wins | MLB | 2020 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2020 | 0.3 |
| SO/BB | MLB | 2015 | 2.60 |
| SO9 | MLB | 2015 | 8.2 |
| BB9 | MLB | 2015 | 3.1 |
| HR9 | MLB | 2015 | 1.9 |
| H9 | MLB | 2015 | 11.7 |
| WHIP | MLB | 2015 | 1.651 |
| Fielding Independent Pitching | MLB | 2015 | 5.23 |
| ERA+ | MLB | 2015 | 80 |
| Batters Faced | MLB | 2015 | 199 |
| Wild Pitches | MLB | 2015 | 4 |
| Balks | MLB | 2015 | 0 |
| Times Hit by a Pitch | MLB | 2015 | 2 |
| Strikeouts | MLB | 2015 | 39 |
| Intentional Bases on Balls | MLB | 2015 | 0 |
| Bases on Balls/Walks | MLB | 2015 | 15 |
| Home Runs Allowed | MLB | 2015 | 9 |
| Earned Runs Allowed | MLB | 2015 | 26 |
| Runs Allowed | MLB | 2015 | 28 |
| Hits Allowed | MLB | 2015 | 56 |
| Innings Pitched | MLB | 2015 | 43.0 |
| Saves | MLB | 2015 | 0 |
| Shutouts | MLB | 2015 | 0 |
| Complete Games | MLB | 2015 | 0 |
| Games Finished | MLB | 2015 | 7 |
| Games Started | MLB | 2015 | 2 |
| Games Pitched | MLB | 2015 | 32 |
| ERA | MLB | 2015 | 5.44 |
| Win-Loss Percentage | MLB | 2015 | .429 |
| Loss | MLB | 2015 | 4 |
| Wins | MLB | 2015 | 3 |
| Wins Above Replacement for Pitchers | MLB | 2015 | -0.3 |
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