Centuries By Doug Mountjoy In Season 1979-1980
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1980 World Championship |
2 | 123, 104 | 19.5 | |
| 1980 Welsh Professional Championship |
1 | 123 | 30 |
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
| 1980 World Championship |
2 | 123, 104 | 19.5 | |
| 1980 Welsh Professional Championship |
1 | 123 | 30 |