Jonathon Calvin Simmons (born September 14, 1989) is an American professional basketball player for Ohud Medina of the Saudi Basketball League. He played one season of Division I college basketball for the University of Houston before a stint in the semi-professional American Basketball League (ABL) led to him joining the NBA D-League's Austin Toros in 2013. Following two seasons in the D-League, Simmons signed with the San Antonio Spurs after an impressive 2015 NBA Summer League.

Trophies 
Milestones
Former Youth Teams 
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| Points | NBA | 2018-2019 | 83 |
| Personal Fouls | NBA | 2018-2019 | 21 |
| Turnovers | NBA | 2018-2019 | 12 |
| Blocks | NBA | 2018-2019 | 1 |
| Steals | NBA | 2018-2019 | 11 |
| Assists | NBA | 2018-2019 | 33 |
| Total Rebounds | NBA | 2018-2019 | 26 |
| Defensive Rebounds | NBA | 2018-2019 | 22 |
| Offensive Rebounds | NBA | 2018-2019 | 4 |
| Free Throw Percentage | NBA | 2018-2019 | .640 |
| Free Throw Attempts | NBA | 2018-2019 | 25 |
| Free Throws | NBA | 2018-2019 | 16 |
| Effective Field Goal Percentage | NBA | 2018-2019 | .523 |
| 2-Point Field Goal Average | NBA | 2018-2019 | .465 |
| 2-Point Field Goal Attempts | NBA | 2018-2019 | 43 |
| 2-Point Field Goals | NBA | 2018-2019 | 20 |
| 3-Point Field Goal Percentage | NBA | 2018-2019 | .429 |
| 3-Point Field Goal Attempts | NBA | 2018-2019 | 21 |
| 3-Point Field Goals | NBA | 2018-2019 | 9 |
| Field Goal Percentage | NBA | 2018-2019 | .453 |
| Field Goal Attempts | NBA | 2018-2019 | 64 |
| Field Goals | NBA | 2018-2019 | 29 |
| Minutes Played | NBA | 2018-2019 | 219 |
| Games Started | NBA | 2018-2019 | 0 |
| Games | NBA | 2018-2019 | 15 |
| Points | NBA | 2018-2019 | 283 |
| Personal Fouls | NBA | 2018-2019 | 68 |
| Turnovers | NBA | 2018-2019 | 56 |
| Blocks | NBA | 2018-2019 | 14 |
| Steals | NBA | 2018-2019 | 18 |
| Assists | NBA | 2018-2019 | 95 |
| Total Rebounds | NBA | 2018-2019 | 100 |
| Defensive Rebounds | NBA | 2018-2019 | 77 |
| Offensive Rebounds | NBA | 2018-2019 | 23 |
| Free Throw Percentage | NBA | 2018-2019 | .778 |
| Free Throw Attempts | NBA | 2018-2019 | 72 |
| Free Throws | NBA | 2018-2019 | 56 |
| Effective Field Goal Percentage | NBA | 2018-2019 | .397 |
| 2-Point Field Goal Average | NBA | 2018-2019 | .419 |
| 2-Point Field Goal Attempts | NBA | 2018-2019 | 203 |
| 2-Point Field Goals | NBA | 2018-2019 | 85 |
| 3-Point Field Goal Percentage | NBA | 2018-2019 | .229 |
| 3-Point Field Goal Attempts | NBA | 2018-2019 | 83 |
| 3-Point Field Goals | NBA | 2018-2019 | 19 |
| Field Goal Percentage | NBA | 2018-2019 | .364 |
| Field Goal Attempts | NBA | 2018-2019 | 286 |
| Field Goals | NBA | 2018-2019 | 104 |
| Minutes Played | NBA | 2018-2019 | 845 |
| Games Started | NBA | 2018-2019 | 9 |
| Games | NBA | 2018-2019 | 41 |
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| Points | NBA | 2017-2018 | 962 |
| Personal Fouls | NBA | 2017-2018 | 175 |
| Turnovers | NBA | 2017-2018 | 146 |
| Blocks | NBA | 2017-2018 | 16 |
| Steals | NBA | 2017-2018 | 58 |
| Assists | NBA | 2017-2018 | 171 |
| Total Rebounds | NBA | 2017-2018 | 239 |
| Defensive Rebounds | NBA | 2017-2018 | 178 |
| Offensive Rebounds | NBA | 2017-2018 | 61 |
| Free Throw Percentage | NBA | 2017-2018 | .768 |
| Free Throw Attempts | NBA | 2017-2018 | 241 |
| Free Throws | NBA | 2017-2018 | 185 |
| Effective Field Goal Percentage | NBA | 2017-2018 | .511 |
| 2-Point Field Goal Average | NBA | 2017-2018 | .512 |
| 2-Point Field Goal Attempts | NBA | 2017-2018 | 557 |
| 2-Point Field Goals | NBA | 2017-2018 | 285 |
| 3-Point Field Goal Percentage | NBA | 2017-2018 | .338 |
| 3-Point Field Goal Attempts | NBA | 2017-2018 | 204 |
| 3-Point Field Goals | NBA | 2017-2018 | 69 |
| Field Goal Percentage | NBA | 2017-2018 | .465 |
| Field Goal Attempts | NBA | 2017-2018 | 761 |
| Field Goals | NBA | 2017-2018 | 354 |
| Minutes Played | NBA | 2017-2018 | 2029 |
| Games Started | NBA | 2017-2018 | 50 |
| Games | NBA | 2017-2018 | 69 |
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| Points | NBA | 2015-2016 | 331 |
| Personal Fouls | NBA | 2015-2016 | 103 |
| Turnovers | NBA | 2015-2016 | 53 |
| Blocks | NBA | 2015-2016 | 5 |
| Steals | NBA | 2015-2016 | 24 |
| Assists | NBA | 2015-2016 | 58 |
| Total Rebounds | NBA | 2015-2016 | 96 |
| Defensive Rebounds | NBA | 2015-2016 | 80 |
| Offensive Rebounds | NBA | 2015-2016 | 16 |
| Free Throw Percentage | NBA | 2015-2016 | .750 |
| Free Throw Attempts | NBA | 2015-2016 | 92 |
| Free Throws | NBA | 2015-2016 | 69 |
| Effective Field Goal Percentage | NBA | 2015-2016 | .541 |
| 2-Point Field Goal Average | NBA | 2015-2016 | .533 |
| 2-Point Field Goal Attempts | NBA | 2015-2016 | 195 |
| 2-Point Field Goals | NBA | 2015-2016 | 104 |
| 3-Point Field Goal Percentage | NBA | 2015-2016 | .383 |
| 3-Point Field Goal Attempts | NBA | 2015-2016 | 47 |
| 3-Point Field Goals | NBA | 2015-2016 | 18 |
| Field Goal Percentage | NBA | 2015-2016 | .504 |
| Field Goal Attempts | NBA | 2015-2016 | 242 |
| Field Goals | NBA | 2015-2016 | 122 |
| Minutes Played | NBA | 2015-2016 | 813 |
| Games Started | NBA | 2015-2016 | 2 |
| Games | NBA | 2015-2016 | 55 |
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