Centuries By John Spencer In Season 1979-1980
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1980 World Championship |
1 | 108 | 21 | |
| 1979 Bombay International |
1 | 106 | 43 |
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
| 1980 World Championship |
1 | 108 | 21 | |
| 1979 Bombay International |
1 | 106 | 43 |