Centuries By John Parrott In Season 1989-1990
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1990 World Championship |
1 | 140 | 89 | |
| 1990 European Open |
1 | 101 | 51 | |
| 1990 Matchroom League | 6 | 142, 138, 123, 117, 116, 102 | 12 | |
| 1989 World Matchplay |
3 | 111, 105, 102 | 19.67 | |
| 1989 UK Championship |
1 | 127 | 43 | |
| 1990 London Masters |
2 | 104, 103 | 8.5 | |
| 1989 International Open |
1 | 139 | 29 | |
| 1989 Scottish Masters |
1 | 134 | 21 | |
| 1989 Hong Kong Open |
2 | 104, 102 | 7.5 | |
| 1989 Norwich Union Grand Prix | 1 | 111 | 16 |