Centuries By John Parrott In Season 1990-1991
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1991 World Championship |
8 | 138, 137, 131, 122, 117, 112, 112, 101 | 13.5 | |
| 1990 World Matchplay |
2 | 131, 122 | 8.5 | |
| 1990 UK Championship |
3 | 140, 119, 102 | 23.67 | |
| 1990 Asian Open |
1 | 106 | 26 | |
| 1991 London Masters |
1 | 138 | 12 | |
| 1990 Grand Prix |
1 | 133 | 28 | |
| 1990 Humo Masters |
2 | 120, 107 | 14.5 | |
| 1990 Norwich Union Grand Prix | 1 | 138 | 17 |