Ross Emery Detwiler (born March 6, 1986) is an American professional baseball pitcher in the Cincinnati Reds organization with the Louisville Bats. He was drafted by the Washington Nationals in the first round of the 2007 MLB draft and made his MLB debut late that season. He has played in Major League Baseball (MLB) for the Texas Rangers, Atlanta Braves, Cleveland Indians, Oakland Athletics, Seattle Mariners, Chicago White Sox, Miami Marlins and San Diego Padres.

Trophies 
Milestones
Former Youth Teams 
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| 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 | 1 |
| Rbat+ | MLB | 2021 | 80 |
| rOBA | MLB | 2021 | .300 |
| OPS+ | MLB | 2021 | 82 |
| OPS | MLB | 2021 | .667 |
| SLG | MLB | 2021 | .333 |
| OBP | MLB | 2021 | .333 |
| Hits/At Bats | MLB | 2021 | .333 |
| 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 | 1 |
| Runs Scored | MLB | 2021 | 0 |
| At Bats | MLB | 2021 | 3 |
| Plate Appearances | MLB | 2021 | 3 |
| Games Played | MLB | 2021 | 45 |
| Wins Above Replacement for position players | MLB | 2021 | 0.0 |
|
|
| SO/BB | MLB | 2020 | 3.00 |
| SO9 | MLB | 2020 | 6.9 |
| BB9 | MLB | 2020 | 2.3 |
| HR9 | MLB | 2020 | 0.9 |
| H9 | MLB | 2020 | 8.7 |
| WHIP | MLB | 2020 | 1.220 |
| Fielding Independent Pitching | MLB | 2020 | 3.90 |
| ERA+ | MLB | 2020 | 141 |
| Batters Faced | MLB | 2020 | 81 |
| Wild Pitches | MLB | 2020 | 1 |
| Balks | MLB | 2020 | 0 |
| Times Hit by a Pitch | MLB | 2020 | 1 |
| Strikeouts | MLB | 2020 | 15 |
| Intentional Bases on Balls | MLB | 2020 | 1 |
| Bases on Balls/Walks | MLB | 2020 | 5 |
| Home Runs Allowed | MLB | 2020 | 2 |
| Earned Runs Allowed | MLB | 2020 | 7 |
| Runs Allowed | MLB | 2020 | 8 |
| Hits Allowed | MLB | 2020 | 19 |
| Innings Pitched | MLB | 2020 | 19.2 |
| Saves | MLB | 2020 | 0 |
| Shutouts | MLB | 2020 | 0 |
| Complete Games | MLB | 2020 | 0 |
| Games Finished | MLB | 2020 | 4 |
| Games Started | MLB | 2020 | 0 |
| Games Pitched | MLB | 2020 | 16 |
| ERA | MLB | 2020 | 3.20 |
| Win-Loss Percentage | MLB | 2020 | .500 |
| Loss | MLB | 2020 | 1 |
| Wins | MLB | 2020 | 1 |
| Wins Above Replacement for Pitchers | MLB | 2020 | 0.1 |
|
|
| SO/BB | MLB | 2019 | 1.70 |
| SO9 | MLB | 2019 | 5.9 |
| BB9 | MLB | 2019 | 3.5 |
| HR9 | MLB | 2019 | 2.6 |
| H9 | MLB | 2019 | 11.1 |
| WHIP | MLB | 2019 | 1.622 |
| Fielding Independent Pitching | MLB | 2019 | 6.92 |
| ERA+ | MLB | 2019 | 70 |
| Batters Faced | MLB | 2019 | 315 |
| Wild Pitches | MLB | 2019 | 1 |
| Balks | MLB | 2019 | 0 |
| Home Runs Allowed | MLB | 2019 | 20 |
| Earned Runs Allowed | MLB | 2019 | 51 |
| Runs Allowed | MLB | 2019 | 54 |
| Hits Allowed | MLB | 2019 | 86 |
| Innings Pitched | MLB | 2019 | 69.2 |
| Saves | MLB | 2019 | 0 |
| Shutouts | MLB | 2019 | 0 |
| Complete Games | MLB | 2019 | 0 |
| Games Finished | MLB | 2019 | 2 |
| Games Started | MLB | 2019 | 12 |
| Games Pitched | MLB | 2019 | 18 |
| ERA | MLB | 2019 | 6.59 |
| Win-Loss Percentage | MLB | 2019 | .375 |
| Loss | MLB | 2019 | 5 |
| Wins | MLB | 2019 | 3 |
| Wins Above Replacement for Pitchers | MLB | 2019 | -0.6 |
| Positions Played | MLB | 2019 | 1 |
| Intentional Bases on Balls | MLB | 2019 | 0 |
| Sacrifice Flies | MLB | 2019 | 0 |
| Sacrifice Hits | MLB | 2019 | 0 |
| Times Hit by a Pitch | MLB | 2019 | 0 |
| GIDP | MLB | 2019 | 0 |
| Total Bases | MLB | 2019 | 0 |
| Rbat+ | MLB | 2019 | -132 |
| 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 | 1 |
| 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 | 2 |
| Games Played | MLB | 2019 | 2 |
| Wins Above Replacement for position players | MLB | 2019 | 0.0 |
|
|
| SO/BB | MLB | 2018 | 1.00 |
| SO9 | MLB | 2018 | 3.0 |
| BB9 | MLB | 2018 | 3.0 |
| HR9 | MLB | 2018 | 1.5 |
| H9 | MLB | 2018 | 12.0 |
| WHIP | MLB | 2018 | 1.667 |
| Fielding Independent Pitching | MLB | 2018 | 5.66 |
| ERA+ | MLB | 2018 | 96 |
| Batters Faced | MLB | 2018 | 23 |
| Wild Pitches | MLB | 2018 | 0 |
| Balks | MLB | 2018 | 0 |
| Times Hit by a Pitch | MLB | 2018 | 0 |
| Strikeouts | MLB | 2018 | 2 |
| Intentional Bases on Balls | MLB | 2018 | 0 |
| Bases on Balls/Walks | MLB | 2018 | 2 |
| Home Runs Allowed | MLB | 2018 | 1 |
| Earned Runs Allowed | MLB | 2018 | 3 |
| Runs Allowed | MLB | 2018 | 3 |
| Hits Allowed | MLB | 2018 | 8 |
| Innings Pitched | MLB | 2018 | 6.0 |
| Saves | MLB | 2018 | 0 |
| Shutouts | MLB | 2018 | 0 |
| Complete Games | MLB | 2018 | 0 |
| Games Finished | MLB | 2018 | 0 |
| Games Started | MLB | 2018 | 0 |
| Games Pitched | MLB | 2018 | 1 |
| ERA | MLB | 2018 | 4.50 |
| Win-Loss Percentage | MLB | 2018 | .000 |
| Loss | MLB | 2018 | 1 |
| Wins | MLB | 2018 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2018 | 0.1 |
|
|
| Win-Loss Percentage | MLB | 2016 | .333 |
| SO/BB | MLB | 2016 | 0.75 |
| SO9 | MLB | 2016 | 5.8 |
| BB9 | MLB | 2016 | 7.7 |
| HR9 | MLB | 2016 | 1.9 |
| H9 | MLB | 2016 | 5.8 |
| WHIP | MLB | 2016 | 1.500 |
| Fielding Independent Pitching | MLB | 2016 | 7.22 |
| ERA+ | MLB | 2016 | 84 |
| Batters Faced | MLB | 2016 | 21 |
| Wild Pitches | MLB | 2016 | 0 |
| Balks | MLB | 2016 | 0 |
| Home Runs Allowed | MLB | 2016 | 1 |
| Earned Runs Allowed | MLB | 2016 | 3 |
| Runs Allowed | MLB | 2016 | 3 |
| Hits Allowed | MLB | 2016 | 3 |
| Innings Pitched | MLB | 2016 | 4.2 |
| Saves | MLB | 2016 | 0 |
| Shutouts | MLB | 2016 | 0 |
| Complete Games | MLB | 2016 | 0 |
| Games Finished | MLB | 2016 | 0 |
| Games Started | MLB | 2016 | 0 |
| Games Pitched | MLB | 2016 | 7 |
| ERA | MLB | 2016 | 5.79 |
| Loss | MLB | 2016 | 0 |
| Wins | MLB | 2016 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2016 | 0.0 |
| Positions Played | MLB | 2016 | /1 |
| 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 | 0 |
| Rbat+ | MLB | 2016 | -350 |
| rOBA | MLB | 2016 | .000 |
| OPS+ | MLB | 2016 | -100 |
| OPS | MLB | 2016 | .000 |
| SLG | MLB | 2016 | .000 |
| OBP | MLB | 2016 | .000 |
| Hits/At Bats | MLB | 2016 | .000 |
| Strikeouts | MLB | 2016 | 1 |
| 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 | 1 |
| Plate Appearances | MLB | 2016 | 2 |
| Games Played | MLB | 2016 | 1 |
| Wins Above Replacement for position players | MLB | 2016 | 0.0 |
|
|
| SO/BB | MLB | 2015 | 1.40 |
| SO9 | MLB | 2015 | 5.9 |
| BB9 | MLB | 2015 | 4.2 |
| HR9 | MLB | 2015 | 1.9 |
| H9 | MLB | 2015 | 13.0 |
| WHIP | MLB | 2015 | 1.907 |
| Fielding Independent Pitching | MLB | 2015 | 6.16 |
| ERA+ | MLB | 2015 | 60 |
| Batters Faced | MLB | 2015 | 208 |
| Wild Pitches | MLB | 2015 | 3 |
| Balks | MLB | 2015 | 0 |
| Home Runs Allowed | MLB | 2015 | 9 |
| Earned Runs Allowed | MLB | 2015 | 34 |
| Runs Allowed | MLB | 2015 | 37 |
| Hits Allowed | MLB | 2015 | 62 |
| Innings Pitched | MLB | 2015 | 43.0 |
| Saves | MLB | 2015 | 0 |
| Shutouts | MLB | 2015 | 0 |
| Complete Games | MLB | 2015 | 0 |
| Games Finished | MLB | 2015 | 4 |
| Games Started | MLB | 2015 | 7 |
| Games Pitched | MLB | 2015 | 17 |
| ERA | MLB | 2015 | 7.12 |
| Win-Loss Percentage | MLB | 2015 | .000 |
| Loss | MLB | 2015 | 5 |
| Wins | MLB | 2015 | 0 |
| Wins Above Replacement for Pitchers | MLB | 2015 | -1.1 |
| Rbat+ | MLB | 2015 | -136 |
| rOBA | MLB | 2015 | .000 |
| OPS+ | MLB | 2015 | -100 |
| OPS | MLB | 2015 | .000 |
| SLG | MLB | 2015 | .000 |
| OBP | MLB | 2015 | .000 |
| Hits/At Bats | MLB | 2015 | .000 |
| 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 | 1 |
| Times Hit by a Pitch | MLB | 2014 | 0 |
| GIDP | MLB | 2014 | 0 |
| Total Bases | MLB | 2014 | 0 |
| Rbat+ | MLB | 2014 | 3 |
| rOBA | MLB | 2014 | .230 |
| OPS+ | MLB | 2014 | 3 |
| OPS | MLB | 2014 | .333 |
| SLG | MLB | 2014 | .000 |
| OBP | MLB | 2014 | .333 |
| Hits/At Bats | MLB | 2014 | .000 |
| Strikeouts | MLB | 2014 | 1 |
| Bases on Balls/Walks | MLB | 2014 | 1 |
| 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 | 0 |
| Runs Scored | MLB | 2014 | 1 |
| At Bats | MLB | 2014 | 2 |
| Plate Appearances | MLB | 2014 | 4 |
| Games Played | MLB | 2014 | 44 |
| Wins Above Replacement for position players | MLB | 2014 | 0.0 |
|
|
| Positions Played | MLB | 2013 | 1 |
| Intentional Bases on Balls | MLB | 2013 | 0 |
| Sacrifice Flies | MLB | 2013 | 0 |
| Sacrifice Hits | MLB | 2013 | 2 |
| Times Hit by a Pitch | MLB | 2013 | 0 |
| GIDP | MLB | 2013 | 0 |
| Total Bases | MLB | 2013 | 2 |
| Rbat+ | MLB | 2013 | -84 |
| rOBA | MLB | 2013 | .104 |
| OPS+ | MLB | 2013 | -38 |
| OPS | MLB | 2013 | .221 |
| SLG | MLB | 2013 | .091 |
| OBP | MLB | 2013 | .130 |
| Hits/At Bats | MLB | 2013 | .091 |
| Strikeouts | MLB | 2013 | 17 |
| Bases on Balls/Walks | MLB | 2013 | 1 |
| 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 | 2 |
| Runs Scored | MLB | 2013 | 1 |
| At Bats | MLB | 2013 | 22 |
| Plate Appearances | MLB | 2013 | 25 |
| Games Played | MLB | 2013 | 13 |
| 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 | 3 |
| Times Hit by a Pitch | MLB | 2012 | 0 |
| GIDP | MLB | 2012 | 0 |
| Total Bases | MLB | 2012 | 2 |
| Rbat+ | MLB | 2012 | -104 |
| rOBA | MLB | 2012 | .072 |
| OPS+ | MLB | 2012 | -69 |
| OPS | MLB | 2012 | .110 |
| SLG | MLB | 2012 | .044 |
| OBP | MLB | 2012 | .065 |
| Hits/At Bats | MLB | 2012 | .044 |
| Strikeouts | MLB | 2012 | 22 |
| Bases on Balls/Walks | MLB | 2012 | 1 |
| Caught Stealing | MLB | 2012 | 0 |
| Stolen Bases | MLB | 2012 | 0 |
| Runs Batted In | MLB | 2012 | 1 |
| Home Runs | MLB | 2012 | 0 |
| Triples | MLB | 2012 | 0 |
| Doubles | MLB | 2012 | 0 |
| Hits | MLB | 2012 | 2 |
| Runs Scored | MLB | 2012 | 0 |
| At Bats | MLB | 2012 | 45 |
| Plate Appearances | MLB | 2012 | 49 |
| Games Played | MLB | 2012 | 30 |
| Wins Above Replacement for position players | MLB | 2012 | -0.4 |
|
|
| Positions Played | MLB | 2011 | /1 |
| Intentional Bases on Balls | MLB | 2011 | 0 |
| Sacrifice Flies | MLB | 2011 | 0 |
| Sacrifice Hits | MLB | 2011 | 0 |
| Times Hit by a Pitch | MLB | 2011 | 0 |
| GIDP | MLB | 2011 | 0 |
| Total Bases | MLB | 2011 | 0 |
| Rbat+ | MLB | 2011 | -142 |
| rOBA | MLB | 2011 | .000 |
| OPS+ | MLB | 2011 | -100 |
| OPS | MLB | 2011 | .000 |
| SLG | MLB | 2011 | .000 |
| OBP | MLB | 2011 | .000 |
| Hits/At Bats | MLB | 2011 | .000 |
| Strikeouts | MLB | 2011 | 3 |
| Bases on Balls/Walks | MLB | 2011 | 0 |
| Caught Stealing | MLB | 2011 | 0 |
| Stolen Bases | MLB | 2011 | 0 |
| Runs Batted In | MLB | 2011 | 0 |
| Home Runs | MLB | 2011 | 0 |
| Triples | MLB | 2011 | 0 |
| Doubles | MLB | 2011 | 0 |
| Hits | MLB | 2011 | 0 |
| Runs Scored | MLB | 2011 | 0 |
| At Bats | MLB | 2011 | 7 |
| Plate Appearances | MLB | 2011 | 7 |
| Games Played | MLB | 2011 | 8 |
| Wins Above Replacement for position players | MLB | 2011 | -0.1 |
|
|
| Positions Played | MLB | 2010 | /1 |
| Intentional Bases on Balls | MLB | 2010 | 0 |
| Sacrifice Flies | MLB | 2010 | 0 |
| Sacrifice Hits | MLB | 2010 | 0 |
| Times Hit by a Pitch | MLB | 2010 | 0 |
| GIDP | MLB | 2010 | 0 |
| Total Bases | MLB | 2010 | 0 |
| Rbat+ | MLB | 2010 | -142 |
| rOBA | MLB | 2010 | .000 |
| OPS+ | MLB | 2010 | -100 |
| OPS | MLB | 2010 | .000 |
| SLG | MLB | 2010 | .000 |
| OBP | MLB | 2010 | .000 |
| Hits/At Bats | MLB | 2010 | .000 |
| Strikeouts | MLB | 2010 | 3 |
| Bases on Balls/Walks | MLB | 2010 | 0 |
| Caught Stealing | MLB | 2010 | 0 |
| Stolen Bases | MLB | 2010 | 0 |
| Runs Batted In | MLB | 2010 | 0 |
| Home Runs | MLB | 2010 | 0 |
| Triples | MLB | 2010 | 0 |
| Doubles | MLB | 2010 | 0 |
| Hits | MLB | 2010 | 0 |
| Runs Scored | MLB | 2010 | 0 |
| At Bats | MLB | 2010 | 7 |
| Plate Appearances | MLB | 2010 | 7 |
| Games Played | MLB | 2010 | 8 |
| Wins Above Replacement for position players | MLB | 2010 | -0.1 |
|