This incarnation of the Championship was limited overs matches
| Winner | Runner-up | |
| Guinness Cup | ||
| 1966 | North West | Ulster Country |
| 1967 | Ulster Country | North Leinster |
| 1968 | North Leinster | Ulster Country |
| 1969 | North Leinster | |
| North West | ||
| 1970 | Ulster Country | South Leinster |
| 1971 | Ulster Town | Ulster Country |
| 1972 | North Leinster | Ulster Country |
| 1973 | Ulster Country | Ulster Town |
| 1974 | Ulster Country | North Leinster |
| 1975 | North Leinster | South Leinster |
| 1976 | Ulster Country | South Leinster |
| 1977 | North West | Ulster Country |
| 1978 | South Leinster | Ulster Town |
| 1979 | Ulster Country | Ulster Town |
| 1980 | Ulster Town | Ulster Country |
| North West | ||
| 1981 | Ulster Town | North Leinster |
| 1982 | North Leinster | Munster |
| 1983 | Ulster Town | Ulster Country |
| 1984 | South Leinster | Ulster Country |
| 1985 | North Leinster | |
| North West | ||
| Senior Interprovincial Tournament | ||
| 1986 | North West | South Leinster |
| 1987 | Ulster Town | South Leinster |
| Ulster Bank Cup | ||
| 1988 | South Leinster | Ulster Country |
| 1989 | North West | Ulster Town |
| 1990 | Ulster Country | Ulster Town |
| AIB Bank Cup | ||
| 1991 | South Leinster | North West |
| 1992 | North West | Ulster Town |
| 1993 | North West | South Leinster |
| AIB/First Trust Cup | ||
| 1994 | North West | Ulster Town |
| 1995 | South Leinster | North West |
| First Trust Cup | ||
| 1996 | Development XI | North West |
| 1997 | Northern Cricket Union | Leinster |
| 1998 | No competition | |
| 1999 | Leinster | North West |
| 2000 | Leinster | |
| North West | ||
| Northern Cricket Union | ||
| 2001 | No competition | |
| Regional Challenge | ||
| 2002 | North West | Southern XI |
| 2003 | North West | Southern XI |
| Northern Cricket Union | ||
| 2004 | North Leinster | Northern Cricket Union |
Ger Siggins
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