Leighton Priestley had the following podium finishes at major championships: 2nd in the 1971 Pan American Games 4×400 metres relay (with Alfred Daley, Trevor Campbell, and the non-Olympian Case).
Personal Best: 400 – 45.75 (1972).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1972 Summer Olympics | Athletics |  JAM |
Leighton Priestley | |||
| 400 metres, Men (Olympic) | 6 h2 r2/4 | |||||
| 4 × 400 metres Relay, Men (Olympic) | Jamaica | 4 h3 r1/2 | ||||
| 1976 Summer Olympics | Athletics | JAM |
Leighton Priestley | |||
| 400 metres, Men (Olympic) | 5 h2 r2/4 | |||||
| 4 × 400 metres Relay, Men (Olympic) | Jamaica | 5 |
