| Full name: | John Ross Frederick Duncan |
| Born: | 25th March 1944, Herston, Brisbane, Queensland, Australia |
| Batting: | Right-hand batter |
| Bowling: | Right-arm fast-medium |
| Teams: | Australia (Test: 1970/71); Queensland (Main FC: 1964/65-1970/71); Queensland (Main ListA: 1969/70-1970/71); Victoria (Main FC: 1971/72-1972/73); Victoria (Main ListA: 1971/72); All teams |
| Lists of matches and more detailed statistics | |
| Test Career Batting and Fielding (1970/71) | |||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | SRate | Ct | ||
| Australia | 1 | 1 | 0 | 3 | 3 | 3.00 | 0 | 0 | 37.50 | 0 | |
| Test Career Bowling (1970/71) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM | SRate | Econ | |
| Australia | 112 | 4 | 30 | 0 | 0-30 | 1.60 | ||||
| First-Class Career Batting and Fielding (1964/65-1972/73) | ||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | Ct | ||
| Overall | 71 | 106 | 29 | 649 | 52 | 8.42 | 0 | 1 | 33 | |
| First-Class Career Bowling (1964/65-1972/73) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM | SRate | Econ | |
| Overall | 15910 | 318 | 6801 | 218 | 8-55 | 31.19 | 9 | 1 | 72.98 | 2.56 |
| List A Career Batting and Fielding (1969/70-1971/72) | ||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | Ct | ||
| Overall | 7 | 2 | 1 | 15 | 14* | 15.00 | 0 | 0 | 3 | |
| List A Career Bowling (1969/70-1971/72) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ | |
| Overall | 432 | 6 | 213 | 8 | 3-34 | 26.62 | 0 | 0 | 54.00 | 2.95 |