| Full Name: | John Ross Frederick Duncan | |
| Born: | 25 March 1944 in Herston, Brisbane, Queensland, Australia | |
| Batting: | Right-hand batsman | |
| Bowling: | Right-arm fast-medium | |
| Test Debut: | Australia v England at Melbourne Cricket Ground - 21, 22, 23, 25, 26 January 1971 | |
| Last Test: | Australia v England at Melbourne Cricket Ground - 21, 22, 23, 25, 26 January 1971 |
| Mat | Inns | NO | Runs | Avg | HS | BF | SR | 50s | 100s | 0s | G 0s | 4s | 6s | ct | st |
| 1 | 1 | 0 | 3 | 3.00 | 3 | 8 | 37.50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Balls | Runs | Wkts | BB | Avg | Econ | SR | 4 W | 5 W | 10 W |
| 112 | 30 | 0 | 0/30 | 0.00 | 1.60 | 0.00 | 0 | 0 | 0 |
| Recent scores: | 3 | |
| Modes of dismissal: | caught (1) | |
| Dismissed most by: | Ray Illingworth 1, | |
| More player stats: | Batting Analysis | Bowling Analysis |
