John Williamson averaged 21.5 points, 2.3 assists and 2.0 rebounds in 4 games in the playoffs 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 | 1978-79 |  NJN | 2 | 46.0 | 29.5 | 3.0 | 4.0 | 2.0 | 0.0 | 11.5 | 31.0 | 37.1 | 6.5 | 8.0 | 81.3 | 42.7 | 1.5 | 1.5 | 7.0 | 92 | 59 | 6 | 8 | 4 | 0 | 14 | 8 | ||||
| 2 |  | J. Williamson | 1979-80 |  WAS | 2 | 15.5 | 13.5 | 1.0 | 0.5 | 0.0 | 0.0 | 5.5 | 9.5 | 57.9 | 1.0 | 3.0 | 33.3 | 1.5 | 1.5 | 100.0 | 66.4 | 0.5 | 0.5 | 2.0 | 31 | 27 | 2 | 1 | 0 | 0 | 4 | 7 | |
| Average | 2.0 | 30.8 | 21.5 | 2.0 | 2.3 | 1.0 | 0.0 | 8.5 | 20.3 | 42.0 | 1.0 | 3.0 | 33.3 | 4.0 | 4.8 | 84.2 | 48.1 | 1.0 | 1.0 | 4.5 | 61.5 | 43.0 | 4.0 | 4.5 | 2.0 | 0.0 | 9.0 | 7.5 | |||||
| Total | 4 | 30.8 | 21.5 | 2.0 | 2.3 | 1.0 | 0.0 | 8.5 | 20.3 | 42.0 | 1.0 | 3.0 | 33.3 | 4.0 | 4.8 | 84.2 | 48.1 | 1.0 | 1.0 | 4.5 | 123 | 86 | 8 | 9 | 4 | 0 | 18 | 15 |
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