Centuries By Jonathan Birch In Season 1990-1991
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1991 World Championship |
1 | 125 | 45 | |
| 1991 World Masters - Mens Singles |
1 | 123 | 37 | |
| 1990 UK Championship |
3 | 109 | 115, 105 | 20 |
| 1990 Asian Open |
1 | 103 | 20 |