Centuries By Ian Williamson In Season 1985-1986
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1986 World Championship |
1 | 114 | 19 | |
| 1985 Matchroom Trophy |
1 | 106 | 15 |
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
| 1986 World Championship |
1 | 114 | 19 | |
| 1985 Matchroom Trophy |
1 | 106 | 15 |