Centuries By Ian Graham In Season 1990-1991
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1991 British Open |
1 | 112 | 14 | |
| 1990 UK Championship |
2 | 104 | 119 | 12 |
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
| 1991 British Open |
1 | 112 | 14 | |
| 1990 UK Championship |
2 | 104 | 119 | 12 |