Tournament Record - Geoff Thomas In Welsh Amateur Championship
| Played | Winner | Final | Semi-final | Quarter-final | Last 16 | Last 32 | Prize Money | Centuries |
|---|---|---|---|---|---|---|---|---|
| 14 | 0 | 0 | 0 | 0 | 4 | 2 | 25 | 2 |
| Tournament | Finish | Prize Money (GBP) |
|---|---|---|
 1990 Welsh Amateur Championship |
Still competing | 0 |
| 1988 Welsh Amateur Championship |
Last 32 | 0 |
| 1986 Welsh Amateur Championship |
Quarter-final | 25 |
| 1984 Welsh Amateur Championship |
Last 32 | 0 |
| 1980 Welsh Amateur Championship |
Semi-final | 0 |
| 1979 Welsh Amateur Championship |
Final | 0 |
| 1977 Welsh Amateur Championship |
Still competing | 0 |
| 1976 Welsh Amateur Championship |
Quarter-final | 0 |
| 1975 Welsh Amateur Championship |
Final | 0 |
| 1974 Welsh Amateur Championship |
Final | 0 |
| 1973 Welsh Amateur Championship |
Still competing | 0 |
| 1972 Welsh Amateur Championship |
Still competing | 0 |
| 1971 Welsh Amateur Championship |
Last 16 | 0 |
| 1970 Welsh Amateur Championship |
Final | 0 |