Henry John Ellenson (born January 13, 1997) is an American professional basketball player for the Wisconsin Herd of the NBA G League. He played one season of college basketball for Marquette, before being drafted 18th overall by the Detroit Pistons in the 2016 NBA draft.

Trophies 
Milestones
Former Youth Teams 
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| Points | NBA | 2020-2021 | 15 |
| Personal Fouls | NBA | 2020-2021 | 7 |
| Turnovers | NBA | 2020-2021 | 0 |
| Blocks | NBA | 2020-2021 | 0 |
| Steals | NBA | 2020-2021 | 0 |
| Assists | NBA | 2020-2021 | 5 |
| Total Rebounds | NBA | 2020-2021 | 12 |
| Defensive Rebounds | NBA | 2020-2021 | 9 |
| Offensive Rebounds | NBA | 2020-2021 | 3 |
| Free Throw Percentage | NBA | 2020-2021 | .750 |
| Free Throw Attempts | NBA | 2020-2021 | 4 |
| Free Throws | NBA | 2020-2021 | 3 |
| Effective Field Goal Percentage | NBA | 2020-2021 | .429 |
| 2-Point Field Goal Average | NBA | 2020-2021 | .600 |
| 2-Point Field Goal Attempts | NBA | 2020-2021 | 5 |
| 2-Point Field Goals | NBA | 2020-2021 | 3 |
| 3-Point Field Goal Percentage | NBA | 2020-2021 | .222 |
| 3-Point Field Goal Attempts | NBA | 2020-2021 | 9 |
| 3-Point Field Goals | NBA | 2020-2021 | 2 |
| Field Goal Percentage | NBA | 2020-2021 | .357 |
| Field Goal Attempts | NBA | 2020-2021 | 14 |
| Field Goals | NBA | 2020-2021 | 5 |
| Minutes Played | NBA | 2020-2021 | 38 |
| Games Started | NBA | 2020-2021 | 0 |
| Games | NBA | 2020-2021 | 2 |
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| Points | NBA | 2019-2020 | 2 |
| Personal Fouls | NBA | 2019-2020 | 1 |
| Turnovers | NBA | 2019-2020 | 0 |
| Blocks | NBA | 2019-2020 | 0 |
| Steals | NBA | 2019-2020 | 0 |
| Assists | NBA | 2019-2020 | 1 |
| Total Rebounds | NBA | 2019-2020 | 6 |
| Defensive Rebounds | NBA | 2019-2020 | 4 |
| Offensive Rebounds | NBA | 2019-2020 | 2 |
| Free Throw Attempts | NBA | 2019-2020 | 0 |
| Free Throws | NBA | 2019-2020 | 0 |
| Effective Field Goal Percentage | NBA | 2019-2020 | .143 |
| 2-Point Field Goal Average | NBA | 2019-2020 | .333 |
| 2-Point Field Goal Attempts | NBA | 2019-2020 | 3 |
| 2-Point Field Goals | NBA | 2019-2020 | 1 |
| 3-Point Field Goal Percentage | NBA | 2019-2020 | .000 |
| 3-Point Field Goal Attempts | NBA | 2019-2020 | 4 |
| 3-Point Field Goals | NBA | 2019-2020 | 0 |
| Field Goal Percentage | NBA | 2019-2020 | .143 |
| Field Goal Attempts | NBA | 2019-2020 | 7 |
| Field Goals | NBA | 2019-2020 | 1 |
| Minutes Played | NBA | 2019-2020 | 15 |
| Games Started | NBA | 2019-2020 | 0 |
| Games | NBA | 2019-2020 | 5 |
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| Points | NBA | 2018-2019 | 102 |
| Personal Fouls | NBA | 2018-2019 | 25 |
| Turnovers | NBA | 2018-2019 | 9 |
| Blocks | NBA | 2018-2019 | 2 |
| Steals | NBA | 2018-2019 | 7 |
| Assists | NBA | 2018-2019 | 15 |
| Total Rebounds | NBA | 2018-2019 | 57 |
| Defensive Rebounds | NBA | 2018-2019 | 52 |
| Offensive Rebounds | NBA | 2018-2019 | 5 |
| Free Throw Percentage | NBA | 2018-2019 | .739 |
| Free Throw Attempts | NBA | 2018-2019 | 23 |
| Free Throws | NBA | 2018-2019 | 17 |
| Effective Field Goal Percentage | NBA | 2018-2019 | .500 |
| 2-Point Field Goal Average | NBA | 2018-2019 | .392 |
| 2-Point Field Goal Attempts | NBA | 2018-2019 | 51 |
| 2-Point Field Goals | NBA | 2018-2019 | 20 |
| 3-Point Field Goal Percentage | NBA | 2018-2019 | .441 |
| 3-Point Field Goal Attempts | NBA | 2018-2019 | 34 |
| 3-Point Field Goals | NBA | 2018-2019 | 15 |
| Field Goal Percentage | NBA | 2018-2019 | .412 |
| Field Goal Attempts | NBA | 2018-2019 | 85 |
| Field Goals | NBA | 2018-2019 | 35 |
| Minutes Played | NBA | 2018-2019 | 234 |
| Games Started | NBA | 2018-2019 | 0 |
| Games | NBA | 2018-2019 | 17 |
| Points | NBA | 2018-2019 | 12 |
| Personal Fouls | NBA | 2018-2019 | 2 |
| Turnovers | NBA | 2018-2019 | 0 |
| Blocks | NBA | 2018-2019 | 0 |
| Steals | NBA | 2018-2019 | 0 |
| Assists | NBA | 2018-2019 | 1 |
| Total Rebounds | NBA | 2018-2019 | 9 |
| Defensive Rebounds | NBA | 2018-2019 | 9 |
| Offensive Rebounds | NBA | 2018-2019 | 0 |
| Free Throw Percentage | NBA | 2018-2019 | 1.000 |
| Free Throw Attempts | NBA | 2018-2019 | 2 |
| Free Throws | NBA | 2018-2019 | 2 |
| Effective Field Goal Percentage | NBA | 2018-2019 | .500 |
| 2-Point Field Goal Average | NBA | 2018-2019 | .333 |
| 2-Point Field Goal Attempts | NBA | 2018-2019 | 6 |
| 2-Point Field Goals | NBA | 2018-2019 | 2 |
| 3-Point Field Goal Percentage | NBA | 2018-2019 | .500 |
| 3-Point Field Goal Attempts | NBA | 2018-2019 | 4 |
| 3-Point Field Goals | NBA | 2018-2019 | 2 |
| Field Goal Percentage | NBA | 2018-2019 | .400 |
| Field Goal Attempts | NBA | 2018-2019 | 10 |
| Field Goals | NBA | 2018-2019 | 4 |
| Minutes Played | NBA | 2018-2019 | 25 |
| Games Started | NBA | 2018-2019 | 0 |
| Games | NBA | 2018-2019 | 2 |
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| Points | NBA | 2017-2018 | 151 |
| Personal Fouls | NBA | 2017-2018 | 22 |
| Turnovers | NBA | 2017-2018 | 18 |
| Blocks | NBA | 2017-2018 | 0 |
| Steals | NBA | 2017-2018 | 5 |
| Assists | NBA | 2017-2018 | 20 |
| Total Rebounds | NBA | 2017-2018 | 81 |
| Defensive Rebounds | NBA | 2017-2018 | 71 |
| Offensive Rebounds | NBA | 2017-2018 | 10 |
| Free Throw Percentage | NBA | 2017-2018 | .862 |
| Free Throw Attempts | NBA | 2017-2018 | 29 |
| Free Throws | NBA | 2017-2018 | 25 |
| Effective Field Goal Percentage | NBA | 2017-2018 | .432 |
| 2-Point Field Goal Average | NBA | 2017-2018 | .384 |
| 2-Point Field Goal Attempts | NBA | 2017-2018 | 86 |
| 2-Point Field Goals | NBA | 2017-2018 | 33 |
| 3-Point Field Goal Percentage | NBA | 2017-2018 | .333 |
| 3-Point Field Goal Attempts | NBA | 2017-2018 | 60 |
| 3-Point Field Goals | NBA | 2017-2018 | 20 |
| Field Goal Percentage | NBA | 2017-2018 | .363 |
| Field Goal Attempts | NBA | 2017-2018 | 146 |
| Field Goals | NBA | 2017-2018 | 53 |
| Minutes Played | NBA | 2017-2018 | 329 |
| Games Started | NBA | 2017-2018 | 0 |
| Games | NBA | 2017-2018 | 38 |
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