Joseph William Kelly Jr. (born June 9, 1988) is an American former professional baseball pitcher who played in Major League Baseball (MLB) for the St. Louis Cardinals, Boston Red Sox, Los Angeles Dodgers, and Chicago White Sox. He previously played college baseball for the UC Riverside Highlanders and served as both a starter and a reliever. The Cardinals drafted Kelly in the third round of the 2009 MLB draft. Listed at 6 feet 1 inch (1.85 m) and 190 pounds (86 kg), Kelly throws and bats right-handed. He won the World Series in 2018 and 2020 with the Red Sox and Dodgers, respectively.
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Milestones
Former Youth Teams
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| SO/BB | MLB | 2023 | 3.42 |
| SO9 | MLB | 2023 | 12.7 |
| BB9 | MLB | 2023 | 3.7 |
| HR9 | MLB | 2023 | 0.9 |
| H9 | MLB | 2023 | 8.1 |
| WHIP | MLB | 2023 | 1.310 |
| Fielding Independent Pitching | MLB | 2023 | 3.22 |
| ERA+ | MLB | 2023 | 90 |
| Batters Faced | MLB | 2023 | 128 |
| Wild Pitches | MLB | 2023 | 4 |
| Balks | MLB | 2023 | 2 |
| Times Hit by a Pitch | MLB | 2023 | 2 |
| Strikeouts | MLB | 2023 | 41 |
| Intentional Bases on Balls | MLB | 2023 | 0 |
| Bases on Balls/Walks | MLB | 2023 | 12 |
| Home Runs Allowed | MLB | 2023 | 3 |
| Earned Runs Allowed | MLB | 2023 | 16 |
| Runs Allowed | MLB | 2023 | 19 |
| Hits Allowed | MLB | 2023 | 26 |
| Innings Pitched | MLB | 2023 | 29.0 |
| Saves | MLB | 2023 | 1 |
| Shutouts | MLB | 2023 | 0 |
| Complete Games | MLB | 2023 | 0 |
| Games Finished | MLB | 2023 | 4 |
| Games Started | MLB | 2023 | 0 |
| Games Pitched | MLB | 2023 | 31 |
| ERA | MLB | 2023 | 4.97 |
| Win-Loss Percentage | MLB | 2023 | .167 |
| Loss | MLB | 2023 | 5 |
| Wins | MLB | 2023 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2023 | -0.3 |
|
|
| SO/BB | MLB | 2022 | 2.30 |
| SO9 | MLB | 2022 | 12.9 |
| BB9 | MLB | 2022 | 5.6 |
| HR9 | MLB | 2022 | 0.5 |
| H9 | MLB | 2022 | 8.8 |
| WHIP | MLB | 2022 | 1.595 |
| Fielding Independent Pitching | MLB | 2022 | 3.06 |
| ERA+ | MLB | 2022 | 66 |
| Batters Faced | MLB | 2022 | 170 |
| Wild Pitches | MLB | 2022 | 4 |
| Balks | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 3 |
| Strikeouts | MLB | 2022 | 53 |
| Intentional Bases on Balls | MLB | 2022 | 0 |
| Bases on Balls/Walks | MLB | 2022 | 23 |
| Home Runs Allowed | MLB | 2022 | 2 |
| Earned Runs Allowed | MLB | 2022 | 25 |
| Runs Allowed | MLB | 2022 | 26 |
| Hits Allowed | MLB | 2022 | 36 |
| Innings Pitched | MLB | 2022 | 37.0 |
| Saves | MLB | 2022 | 1 |
| Shutouts | MLB | 2022 | 0 |
| Complete Games | MLB | 2022 | 0 |
| Games Finished | MLB | 2022 | 4 |
| Games Started | MLB | 2022 | 1 |
| Games Pitched | MLB | 2022 | 43 |
| ERA | MLB | 2022 | 6.08 |
| Win-Loss Percentage | MLB | 2022 | .250 |
| Loss | MLB | 2022 | 3 |
| Wins | MLB | 2022 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2022 | -0.6 |
|
|
| 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 | -137 |
| 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 | 0 |
| 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 | 46 |
| Wins Above Replacement for position players | MLB | 2021 | 0.0 |
|
|
| 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 | 0 |
| Rbat+ | MLB | 2019 | -258 |
| rOBA | MLB | 2019 | .000 |
| OPS+ | MLB | 2019 | -100 |
| OPS | MLB | 2019 | .000 |
| SLG | MLB | 2019 | .000 |
| OBP | MLB | 2019 | .000 |
| Hits/At Bats | MLB | 2019 | .000 |
| Strikeouts | MLB | 2019 | 2 |
| 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 | 0 |
| Hits | MLB | 2019 | 0 |
| Runs Scored | MLB | 2019 | 0 |
| At Bats | MLB | 2019 | 2 |
| Plate Appearances | MLB | 2019 | 3 |
| Games Played | MLB | 2019 | 52 |
| Wins Above Replacement for position players | MLB | 2019 | 0.0 |
|
|
| SO/BB | MLB | 2018 | 2.13 |
| SO9 | MLB | 2018 | 9.3 |
| BB9 | MLB | 2018 | 4.4 |
| HR9 | MLB | 2018 | 0.5 |
| H9 | MLB | 2018 | 7.8 |
| WHIP | MLB | 2018 | 1.355 |
| Fielding Independent Pitching | MLB | 2018 | 3.57 |
| ERA+ | MLB | 2018 | 101 |
| Batters Faced | MLB | 2018 | 285 |
| Wild Pitches | MLB | 2018 | 4 |
| Balks | MLB | 2018 | 0 |
| Home Runs Allowed | MLB | 2018 | 4 |
| Earned Runs Allowed | MLB | 2018 | 32 |
| Runs Allowed | MLB | 2018 | 34 |
| Hits Allowed | MLB | 2018 | 57 |
| Innings Pitched | MLB | 2018 | 65.2 |
| Saves | MLB | 2018 | 2 |
| Shutouts | MLB | 2018 | 0 |
| Complete Games | MLB | 2018 | 0 |
| Games Finished | MLB | 2018 | 9 |
| Games Started | MLB | 2018 | 0 |
| Games Pitched | MLB | 2018 | 73 |
| ERA | MLB | 2018 | 4.39 |
| Win-Loss Percentage | MLB | 2018 | .667 |
| Loss | MLB | 2018 | 2 |
| Wins | MLB | 2018 | 4 |
| Wins Above Replacement for Pitchers | MLB | 2018 | 0.2 |
| Positions Played | MLB | 2018 | 1 |
| Intentional Bases on Balls | MLB | 2018 | 0 |
| Sacrifice Flies | MLB | 2018 | 0 |
| Sacrifice Hits | MLB | 2018 | 0 |
| Times Hit by a Pitch | MLB | 2018 | 0 |
| GIDP | MLB | 2018 | 0 |
| Total Bases | MLB | 2018 | 0 |
| Strikeouts | MLB | 2018 | 0 |
| 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 | 0 |
| Plate Appearances | MLB | 2018 | 0 |
| Games Played | MLB | 2018 | 6 |
| Wins Above Replacement for position players | MLB | 2018 | 0.0 |
|
|
| SO/BB | MLB | 2017 | 1.93 |
| SO9 | MLB | 2017 | 8.1 |
| BB9 | MLB | 2017 | 4.2 |
| HR9 | MLB | 2017 | 0.5 |
| H9 | MLB | 2017 | 6.5 |
| WHIP | MLB | 2017 | 1.190 |
| Fielding Independent Pitching | MLB | 2017 | 3.49 |
| ERA+ | MLB | 2017 | 164 |
| Batters Faced | MLB | 2017 | 238 |
| Wild Pitches | MLB | 2017 | 4 |
| Balks | MLB | 2017 | 0 |
| Home Runs Allowed | MLB | 2017 | 3 |
| Earned Runs Allowed | MLB | 2017 | 18 |
| Runs Allowed | MLB | 2017 | 19 |
| Hits Allowed | MLB | 2017 | 42 |
| Innings Pitched | MLB | 2017 | 58.0 |
| Saves | MLB | 2017 | 0 |
| Shutouts | MLB | 2017 | 0 |
| Complete Games | MLB | 2017 | 0 |
| Games Finished | MLB | 2017 | 14 |
| Games Started | MLB | 2017 | 0 |
| Games Pitched | MLB | 2017 | 54 |
| ERA | MLB | 2017 | 2.79 |
| Win-Loss Percentage | MLB | 2017 | .800 |
| Loss | MLB | 2017 | 1 |
| Wins | MLB | 2017 | 4 |
| Wins Above Replacement for Pitchers | MLB | 2017 | 1.2 |
| 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 | 0 |
| 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 | 0 |
| Runs Scored | MLB | 2017 | 0 |
| At Bats | MLB | 2017 | 0 |
| Plate Appearances | MLB | 2017 | 0 |
| Games Played | MLB | 2017 | 5 |
| Wins Above Replacement for position players | MLB | 2017 | 0.0 |
|
|
| SO/BB | MLB | 2016 | 2.00 |
| SO9 | MLB | 2016 | 10.8 |
| BB9 | MLB | 2016 | 5.4 |
| HR9 | MLB | 2016 | 1.1 |
| H9 | MLB | 2016 | 9.9 |
| WHIP | MLB | 2016 | 1.700 |
| Fielding Independent Pitching | MLB | 2016 | 4.32 |
| ERA+ | MLB | 2016 | 87 |
| Batters Faced | MLB | 2016 | 188 |
| Wild Pitches | MLB | 2016 | 0 |
| Balks | MLB | 2016 | 0 |
| Home Runs Allowed | MLB | 2016 | 5 |
| Earned Runs Allowed | MLB | 2016 | 23 |
| Runs Allowed | MLB | 2016 | 23 |
| Hits Allowed | MLB | 2016 | 44 |
| Innings Pitched | MLB | 2016 | 40.0 |
| Saves | MLB | 2016 | 0 |
| Shutouts | MLB | 2016 | 0 |
| Complete Games | MLB | 2016 | 0 |
| Games Finished | MLB | 2016 | 6 |
| Games Started | MLB | 2016 | 6 |
| Games Pitched | MLB | 2016 | 20 |
| ERA | MLB | 2016 | 5.18 |
| Win-Loss Percentage | MLB | 2016 | 1.000 |
| Loss | MLB | 2016 | 0 |
| Wins | MLB | 2016 | 4 |
| Wins Above Replacement for Pitchers | MLB | 2016 | -0.1 |
| Positions Played | MLB | 2016 | 1 |
| Intentional Bases on Balls | MLB | 2016 | 0 |
| Sacrifice Flies | MLB | 2016 | 0 |
| Sacrifice Hits | MLB | 2016 | 0 |
| Times Hit by a Pitch | MLB | 2016 | 0 |
| GIDP | MLB | 2016 | 0 |
| Total Bases | MLB | 2016 | 0 |
| Strikeouts | MLB | 2016 | 0 |
| Bases on Balls/Walks | MLB | 2016 | 0 |
| 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 | 0 |
| Runs Scored | MLB | 2016 | 0 |
| At Bats | MLB | 2016 | 0 |
| Plate Appearances | MLB | 2016 | 0 |
| Games Played | MLB | 2016 | 2 |
| Wins Above Replacement for position players | MLB | 2016 | 0.0 |
|
|
| SO/BB | MLB | 2015 | 2.24 |
| SO9 | MLB | 2015 | 7.4 |
| BB9 | MLB | 2015 | 3.3 |
| HR9 | MLB | 2015 | 1.0 |
| H9 | MLB | 2015 | 9.7 |
| WHIP | MLB | 2015 | 1.444 |
| Fielding Independent Pitching | MLB | 2015 | 4.18 |
| ERA+ | MLB | 2015 | 89 |
| Batters Faced | MLB | 2015 | 587 |
| Wild Pitches | MLB | 2015 | 9 |
| Balks | MLB | 2015 | 0 |
| Home Runs Allowed | MLB | 2015 | 15 |
| Earned Runs Allowed | MLB | 2015 | 72 |
| Runs Allowed | MLB | 2015 | 76 |
| Hits Allowed | MLB | 2015 | 145 |
| Innings Pitched | MLB | 2015 | 134.1 |
| Saves | MLB | 2015 | 0 |
| Shutouts | MLB | 2015 | 0 |
| Complete Games | MLB | 2015 | 0 |
| Games Finished | MLB | 2015 | 0 |
| Games Started | MLB | 2015 | 25 |
| Games Pitched | MLB | 2015 | 25 |
| ERA | MLB | 2015 | 4.82 |
| Win-Loss Percentage | MLB | 2015 | .625 |
| Loss | MLB | 2015 | 6 |
| Wins | MLB | 2015 | 10 |
| Wins Above Replacement for Pitchers | MLB | 2015 | 0.9 |
| 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 | 1 |
| Rbat+ | MLB | 2015 | -29 |
| rOBA | MLB | 2015 | .160 |
| OPS+ | MLB | 2015 | 8 |
| OPS | MLB | 2015 | .400 |
| SLG | MLB | 2015 | .200 |
| OBP | MLB | 2015 | .200 |
| Hits/At Bats | MLB | 2015 | .200 |
| Strikeouts | MLB | 2015 | 2 |
| Bases on Balls/Walks | MLB | 2015 | 0 |
| Caught Stealing | MLB | 2015 | 0 |
| Stolen Bases | MLB | 2015 | 0 |
| Runs Batted In | MLB | 2015 | 1 |
| Home Runs | MLB | 2015 | 0 |
| Triples | MLB | 2015 | 0 |
| Doubles | MLB | 2015 | 0 |
| Hits | MLB | 2015 | 1 |
| Runs Scored | MLB | 2015 | 0 |
| At Bats | MLB | 2015 | 5 |
| Plate Appearances | MLB | 2015 | 5 |
| Games Played | MLB | 2015 | 2 |
| Wins Above Replacement for position players | MLB | 2015 | 0.0 |
|
|
| SO/BB | MLB | 2014 | 1.28 |
| SO9 | MLB | 2014 | 6.0 |
| BB9 | MLB | 2014 | 4.7 |
| HR9 | MLB | 2014 | 0.7 |
| H9 | MLB | 2014 | 6.9 |
| WHIP | MLB | 2014 | 1.288 |
| Fielding Independent Pitching | MLB | 2014 | 4.62 |
| ERA+ | MLB | 2014 | 97 |
| Batters Faced | MLB | 2014 | 259 |
| Wild Pitches | MLB | 2014 | 0 |
| Balks | MLB | 2014 | 0 |
| Home Runs Allowed | MLB | 2014 | 5 |
| Earned Runs Allowed | MLB | 2014 | 28 |
| Runs Allowed | MLB | 2014 | 29 |
| Hits Allowed | MLB | 2014 | 47 |
| Innings Pitched | MLB | 2014 | 61.1 |
| Saves | MLB | 2014 | 0 |
| Shutouts | MLB | 2014 | 0 |
| Complete Games | MLB | 2014 | 0 |
| Games Finished | MLB | 2014 | 0 |
| Games Started | MLB | 2014 | 10 |
| Games Pitched | MLB | 2014 | 10 |
| ERA | MLB | 2014 | 4.11 |
| Win-Loss Percentage | MLB | 2014 | .667 |
| Loss | MLB | 2014 | 2 |
| Wins | MLB | 2014 | 4 |
| Wins Above Replacement for Pitchers | MLB | 2014 | 0.3 |
| Positions Played | MLB | 2014 | /1 |
| Intentional Bases on Balls | MLB | 2014 | 0 |
| Sacrifice Flies | MLB | 2014 | 0 |
| Sacrifice Hits | MLB | 2014 | 1 |
| Times Hit by a Pitch | MLB | 2014 | 1 |
| GIDP | MLB | 2014 | 0 |
| Total Bases | MLB | 2014 | 3 |
| Rbat+ | MLB | 2014 | 20 |
| rOBA | MLB | 2014 | .224 |
| OPS+ | MLB | 2014 | 35 |
| OPS | MLB | 2014 | .481 |
| SLG | MLB | 2014 | .250 |
| OBP | MLB | 2014 | .231 |
| Hits/At Bats | MLB | 2014 | .167 |
| Strikeouts | MLB | 2014 | 1 |
| 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 | 1 |
| Hits | MLB | 2014 | 2 |
| Runs Scored | MLB | 2014 | 0 |
| At Bats | MLB | 2014 | 12 |
| Plate Appearances | MLB | 2014 | 14 |
| Games Played | MLB | 2014 | 7 |
| Wins Above Replacement for position players | MLB | 2014 | 0.1 |
|
|
| Positions Played | MLB | 2013 | 1/H |
| Intentional Bases on Balls | MLB | 2013 | 0 |
| Sacrifice Flies | MLB | 2013 | 1 |
| Sacrifice Hits | MLB | 2013 | 5 |
| Times Hit by a Pitch | MLB | 2013 | 1 |
| GIDP | MLB | 2013 | 0 |
| Total Bases | MLB | 2013 | 6 |
| Rbat+ | MLB | 2013 | -48 |
| rOBA | MLB | 2013 | .155 |
| OPS+ | MLB | 2013 | -2 |
| OPS | MLB | 2013 | .353 |
| SLG | MLB | 2013 | .182 |
| OBP | MLB | 2013 | .171 |
| Hits/At Bats | MLB | 2013 | .152 |
| Strikeouts | MLB | 2013 | 8 |
| Bases on Balls/Walks | MLB | 2013 | 0 |
| Caught Stealing | MLB | 2013 | 0 |
| Stolen Bases | MLB | 2013 | 0 |
| Runs Batted In | MLB | 2013 | 2 |
| Home Runs | MLB | 2013 | 0 |
| Triples | MLB | 2013 | 0 |
| Doubles | MLB | 2013 | 1 |
| Hits | MLB | 2013 | 5 |
| Runs Scored | MLB | 2013 | 4 |
| At Bats | MLB | 2013 | 33 |
| Plate Appearances | MLB | 2013 | 40 |
| Games Played | MLB | 2013 | 39 |
| Wins Above Replacement for position players | MLB | 2013 | 0.0 |
|
|
| Positions Played | MLB | 2012 | 1/H |
| Intentional Bases on Balls | MLB | 2012 | 0 |
| Sacrifice Flies | MLB | 2012 | 0 |
| Sacrifice Hits | MLB | 2012 | 2 |
| Times Hit by a Pitch | MLB | 2012 | 0 |
| GIDP | MLB | 2012 | 0 |
| Total Bases | MLB | 2012 | 7 |
| Rbat+ | MLB | 2012 | -37 |
| rOBA | MLB | 2012 | .152 |
| OPS+ | MLB | 2012 | -1 |
| OPS | MLB | 2012 | .364 |
| SLG | MLB | 2012 | .212 |
| OBP | MLB | 2012 | .152 |
| Hits/At Bats | MLB | 2012 | .152 |
| Strikeouts | MLB | 2012 | 13 |
| 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 | 2 |
| Hits | MLB | 2012 | 5 |
| Runs Scored | MLB | 2012 | 3 |
| At Bats | MLB | 2012 | 33 |
| Plate Appearances | MLB | 2012 | 35 |
| Games Played | MLB | 2012 | 28 |
| Wins Above Replacement for position players | MLB | 2012 | 0.0 |
|
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