John Williamson averaged 10.0 points, 1.4 assists and 1.3 rebounds in 39 games for the Washington Bullets in his career.
| NAME | SEASON | TM | GP | MPG | PPG | RPG | APG | SPG | BPG | FGM | FGA | FG% | 3PM | 3PA | 3P% | FTM | FTA | FT% | TS% | OREB | DREB | TPG | MIN | PTS | REB | AST | STL | BLK | TOV | PF | +/- | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | J. Williamson | 1979-80 |  WAS | 30 | 20.1 | 11.6 | 1.5 | 1.3 | 0.3 | 0.3 | 5.1 | 11.9 | 43.0 | 0.1 | 0.5 | 18.8 | 1.3 | 1.7 | 80.0 | 46.2 | 0.5 | 1.0 | 1.6 | 603 | 349 | 45 | 39 | 10 | 10 | 49 | 66 | |
| 2 | | J. Williamson | 1980-81 | WAS | 9 | 12.4 | 4.7 | 0.8 | 1.9 | 0.4 | 0.1 | 2.0 | 6.2 | 32.1 | 0.1 | 0.7 | 16.7 | 0.6 | 0.7 | 83.3 | 35.8 | 0.0 | 0.8 | 1.3 | 112 | 42 | 7 | 17 | 4 | 1 | 12 | 13 | |
| Average | 19.5 | 18.3 | 10.0 | 1.3 | 1.4 | 0.4 | 0.3 | 4.4 | 10.6 | 41.5 | 0.1 | 0.6 | 18.2 | 1.2 | 1.4 | 80.4 | 44.8 | 0.4 | 1.0 | 1.6 | 357.5 | 195.5 | 26.0 | 28.0 | 7.0 | 5.5 | 30.5 | 39.5 | |||||
| Total | 39 | 18.3 | 10.0 | 1.3 | 1.4 | 0.4 | 0.3 | 4.4 | 10.6 | 41.5 | 0.1 | 0.6 | 18.2 | 1.2 | 1.4 | 80.4 | 44.8 | 0.4 | 1.0 | 1.6 | 715 | 391 | 52 | 56 | 14 | 11 | 61 | 79 |
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