Centuries By Fergal O'Brien In Season 1998-1999
| Tournament | Total | Breaks - Venue | Breaks - Qualifying | Rate |
|---|---|---|---|---|
 1999 British Open |
4 | 129, 116, 112, 100 | 15.25 | |
| 1999 Scottish Open |
2 | 134, 110 | 12 | |
| 1999 Welsh Open |
1 | 116 | 19 | |
| 1998 UK Championship |
2 | 130, 127 | 28.5 |