Centuries By Alan McManus In Season 1990-1991
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1991 World Championship |
3 | 137, 108, 102 | 40 | |
| 1991 British Open |
1 | 103 | 19 | |
| 1991 World Masters - Mens Singles |
2 | 137, 104 | 7 | |
| 1991 Classic |
1 | 102 | 37 | |
| 1990 Benson and Hedges Satellite Championship |
3 | 142, 135, 105 | 22 | |
| 1990 UK Championship |
2 | 110, 101 | 44.5 |