| Rod Lawler defeated Derek Mienie |
1991 World Championship Snooker |
| Pat Houlihan defeated Derek Mienie |
1990 World Championship Snooker |
| Derek Mienie defeated Jim Meadowcroft |
1990 World Championship Snooker |
| Jim Meadowcroft defeated Derek Mienie |
1989 World Championship Snooker |
| Derek Mienie defeated Vladimir Potazsnyk |
1989 World Championship Snooker |
| Jim Chambers defeated Derek Mienie |
1989 Classic Snooker |
| Mark Wildman defeated Derek Mienie |
1988 UK Championship Snooker |
| Dave Gilbert defeated Derek Mienie |
1988 Grand Prix Snooker |
| Derek Mienie defeated Jim Meadowcroft |
1988 Grand Prix Snooker |
| Glen Wilkinson defeated Derek Mienie |
1988 International Open Snooker |
| Perrie Mans defeated Derek Mienie |
1989 South African Professional Championship Snooker |
| Jim Bear defeated Derek Mienie |
1988 World Championship Snooker |
| Jim Meadowcroft defeated Derek Mienie |
1987 World Championship Snooker |
| Colin Roscoe defeated Derek Mienie |
1987 British Open Snooker |
| Graham Cripsey defeated Derek Mienie |
1987 Classic Snooker |
| Derek Mienie defeated John Hargreaves |
1987 Classic Snooker |
| Greg Jenkins defeated Derek Mienie |
1986 UK Championship Snooker |
| Matt Gibson defeated Derek Mienie |
1986 Grand Prix Snooker |
| Derek Mienie defeated Jack Fitzmaurice |
1986 Grand Prix Snooker |
| Bill Oliver defeated Derek Mienie |
1986 International Open Snooker |
| Jimmy van Rensberg defeated Derek Mienie |
1986 South African Professional Championship Snooker |
| Derek Mienie defeated Mike Hines |
1986 South African Professional Championship Snooker |
| Paul Thornley defeated Derek Mienie |
1986 World Championship Snooker |
| Tony Drago defeated Derek Mienie |
1986 British Open Snooker |
| Martin Smith defeated Derek Mienie |
1986 Classic Snooker |
| John Hargreaves defeated Derek Mienie |
1985 UK Championship Snooker |
| Sakchai Sim Ngam defeated Derek Mienie |
1985 Grand Prix Snooker |
| Patsy Fagan defeated Derek Mienie |
1985 Matchroom Trophy Snooker |
| Derek Mienie defeated Gerry Watson |
1985 Matchroom Trophy Snooker |
| Malcolm Bradley defeated Derek Mienie |
1985 World Championship Snooker |
| Ray Edmonds defeated Derek Mienie |
1985 British Open Snooker |
| Stephen Murphy defeated Derek Mienie |
1989 Professional Play-offs Snooker |
| Tony Wilson defeated Derek Mienie |
1988 Professional Play-offs Snooker |
| Eugene Hughes defeated Derek Mienie |
1982 World Championship Snooker |
| Eddie Sinclair defeated Derek Mienie |
1980 World Championship Snooker |
| Derek Mienie defeated Jimmy van Rensberg |
1979 South African Professional Championship Snooker |
| Derek Mienie defeated Perrie Mans |
1979 South African Professional Championship Snooker |
| Derek Mienie defeated Mannie Francisco |
1979 South African Professional Championship Snooker |
| Doug Mountjoy defeated Derek Mienie |
1979 World Championship Snooker |