| Lieut-Col R W Randall Challenge Cup | | | | Evening Press Trophy | |
| 1949 - 52 | Jersey | | | 1932 | A Mantle (G) |
| 1953 - 55 | Guernsey | | | 1933 | A Zabiela (G) |
| 1956 - 58 | Jersey | | | 1934 - 35 | G L Borny (J) |
| 1959 | Guernsey | | | 1936 | I J Soudin (J) |
| 1960 - 68 | Jersey | | | 1937 | H I Allen (G) |
| 1969 | Guernsey | | | 1938 | L Richmond (J) |
| 1970 | Jersey | | | 1939 | B C O’Neill (J) |
| 1971 | Guernsey | | | 1940 | J J Spillane (G) |
| 1972 | Jersey | | | 1941 - 45 | No Competition |
| 1973 | Guernsey | | | 1946 | F T Drouin (J) |
| 1974 - 77 | Jersey | | | 1947 | D P Dorleans (J) |
| 1978 | Guernsey | | | 1948 | L RIchmond (J) |
| 1979 - 81 | Jersey | | | 1949 | G L Borny (J) |
| 1982 - 83 | Guernsey | | | 1950 - 51 | N E Wale (G) |
| 1984 - 89 | Jersey | | | 1952 | L Richmond (J) |
| 1990 - 92 | Guernsey | | | 1953 | N E Wale (G) |
| 1993 - 97 | Jersey | | | 1954 | G Le Blancq (J) |
| 1998 - 99 | Guernsey | | | 1955 - 56 | N E Wale (G) |
| 2000 | Jersey | | | 1957 | R Querree (J) |
| 2001 - 06 | Guernsey | | | 1958 | D P Dorleans (J) |
| 2007 | Jersey | | | 1959 | N E Wale (G) |
| 2008 | Guernsey | | | 1960 | G Le Blancq (J) |
| 2009 | Jersey | | | 1961 - 62 | N E Wale (G) |
| 2010 - 12 | Guernsey | | | 1963 | B T Kimber(G) |
| 2013 | Jersey | | | 1964 | D Poingdestre (J) |
| 2014 - 16 | Guernsey | | | 1965 | R Newton (J) |
| 2017 | Jersey | | | 1966 | G Le Blancq (J) |
| 2018 - 19 | Guernsey | | | 1967 | R Newton (J) |
| 2020 - 21 | No Competition (COVID-19) | | | 1968 | D Poingdestre (J) |
| 2022 - 23 | Jersey | | | 1969 - 70 | R Brooker (J) |
| 2024 | Guernsey | | | 1971 | B Kimber (G) |
| | | | 1972 | O Le Breton (J) |
| | | | 1973 | D Naidoo (J) |
| INTER-ISLAND TEAM BILLIARDS COMPETITION | | | | 1974 - 76 | K Hawthorn (J) |
| The Silver Jubilee Trophy | | | | 1977 | R Brooker (J) |
| 1949 | Guernsey | | | 1978 | R Newton (J) |
| 1950 - 66 | Jersey | | | 1979 | D Maguire (J) |
| 1967 | Guernsey | | | 1980 | G Le Blancq (J) |
| 1968 - 72 | Jersey | | | 1981 | D Naidoo (J) |
| 1973 | Guernsey | | | 1982 | M Bees (J) |
| 1974 | Jersey | | | 1983 | D Naidoo (J) |
| 1975 | Guernsey | | | 1984 | P Warr (G) |
| 1976 - 78 | Jersey | | | 1985 | D Le Fevre (G) |
| 1979 | Guernsey | | | 1986 | D Lewis (G) |
| 1980 | Jersey | | | 1987 | C Fulton (J) |
| 1981 - 83 | Guernsey | | | 1988 - 89 | D Maguire (J) |
| 1984 | Jersey | | | 1990 | A Lihou (G) |
| 1985 | Guernsey | | | 1991 | D Brabiner (J) |
| 1986 | Jersey | | | 1992 | A Trustum (G) |
| 1987 | Guernsey | | | 1993 - 95 | K Beadle (J) |
| 1988 - 90 | Jersey | | | 1996 | K Le Fevre (J) |
| 1991 | Guernsey | | | 1997 | G Britton (J) |
| 1992 - 93 | Jersey | | | 1998 - 99 | K Le Fevre (J) |
| 1994 | Guernsey | | | 2000 - 01 | G Britton (J) |
| 1995 | Jersey | | | 2002 | J Browne (J) |
| 1996 | Guernsey | | | 2003 | M Desperques (G) |
| 1997 - 98 | Jersey | | | 2004 | A Holley (G) |
| 1999 | Guernsey | | | 2005 | M Desperques (G) |
| 2000 | Jersey | | | 2006 | A Shorto (G) |
| 2001 - 02 | Guernsey | | | 2007 | M Desperques (G) |
| 2003 | Jersey | | | 2008 | A Canavan (J) |
| 2004 | Guernsey | | | 2009 | M Desperques (G) |
| 2005 | Jersey | | | 2010 - 14 | A Canavan (J) |
| 2006 | Guernsey | | | 2015 | A Shorto (G) |
| 2007 - 09 | Jersey | | | 2016 - 17 | A Canavan (J) |
| 2010 | Guernsey | | | 2018 | M Desperques (G) |
| 2011 - 13 | Jersey | | | 2019 | G Britton (J) |
| 2014 | Guernsey | | | 2020 - 21 | No Competition (COVID-19) |
| 2015 - 18 | Jersey | | | 2022 - 24 | A Canavan (J) |
| 2019 | Guernsey | | | | |
| 2020 - 21 | No Competition (COVID-19) | | | | |
| 2022 | Jersey | | | C I BILLIARDS CHAMPIONS | |
| 2023 - 24 | Guernsey | | | R J Collins Trophy | |
| | | | 1928 - 29 | T Baxter (G) |
| | | | 1930 - 31 | A G Kent (J) |
| UPTON INTER-INSULAR | | | | 1932 | B C O’Neill (J) |
| 1997 | St Ouen (J) | | | 1933 | A R Riches (J) |
| 1998 | North Social D (G) | | | 1934 | B C O’Neill (J) |
| 1999 | Mechanics A (J) | | | 1935 | T McCord (G) |
| 2000 | G.I.B.A. 5 (G) | | | 1936 | A R Riches (J) |
| 2001 | Mechanics C (J) | | | 1937 | B C O’Neill (J) |
| 2002 | Ex-Service A (G) | | | 1938 | A R Riches (J) |
| 2003 | Ex-Service B (G) | | | 1939 | B C O’Neill (J) |
| 2004 | Ex Service A (G) | | | 1940 | N E Wale (G) |
| 2005 | Ex-Service Chirpers (G) | | | 1941 - 45 | No Competition |
| 2006 | Gremlin A (G) | | | 1946 | B C O’Neill (J) |
| 2007 | 147 A (J) | | | 1947 | F T Drouin (J) |
| 2008 | 147 CVS (J) | | | 1948 - 49 | T McCord (G) |
| 2009 | Gremlin Galacticos (G) | | | 1950 | B C O’Neill (J) |
| 2010 | La Villette Hotel Gremlins (G) | | | 1951 | G C Noel (J) |
| 2011 | Mechanics (J) | | | 1952 - 54 | D P Dorleans (J) |
| | | | 1955 - 59 | G Gottrel (J) |
| Competition amended to be competed by Division One champions | | | | 1960 | N E Wale (G) |
| 2012 | Slattery Decor NSC (G) | | | 1961 - 62 | D Power (J) |
| 2013 | Ex-Service Strokers (G) | | | 1963 | C Legg (J) |
| 2014 | Slattery Decor NSC (G) | | | 1964 | D Power (J) |
| 2015 - 16 | Tower Green Baize Goblins (J) | | | 1965 | N E Wale (G) |
| | | | 1966 - 67 | D Poingdestre (J) |
| Competition reverted to be competed by Premier Division champions | | | | 1968 | D Power (J) |
| 2017 | La Villette Hotel Gremlins (G) | | | 1969 - 80 | D Poingdestre (J) |
| 2018 | The Sledgehammers (G) | | | 1981 - 82 | B T Kimber (G) |
| | | | 1983 | D Lewis (G) |
| Competition amended to a ‘B’ inter insular | | | | 1984 - 85 | R Newton (J) |
| 2019 | Guernsey | | | 1986 | D Mahy (G) |
| 2020 - 21 | No Competition (COVID-19) | | | 1987 | D Naidoo (J) |
| 2022 | Jersey | | | 1988 | D Mahy (G) |
| 2023 - 24 | Guernsey | | | 1989 - 90 | B Slous (J) |
| | | | 1991 - 93 | D Lewis (G) |
| | | | 1994 | B Slous (J) |
| JUNIOR INTER-ISLAND TEAM SNOOKER COMPETITION | | | | 1995 | M Mahrer (J) |
| 1987 - 88 | Guernsey | | | 1996 | G Chippendale(G) |
| 1989 - 90 | Jersey | | | 1997 | G Britton (J) |
| 1991 | Guernsey | | | 1998 | R. Slous (J) |
| 1992 | No Competition | | | 1999 | A Holley (G) |
| 1993 | Jersey | | | 2000 - 01 | G Britton (J) |
| 1994 | Jersey | | | 2002 | M Mahrer (J) |
| 1995 - 24 | No Competition | | | 2003 - 05 | A Shorto (G) |
| | | | 2006 - 07 | M Desperques (G) |
| | | | 2008 - 09 | G Britton (J) |
| JUNIOR INTER-ISLAND TEAM BILLIARDS COMPETITION | | | | 2010 | M Desperques (G) |
| 1987 | Jersey | | | 2011 - 12 | D Brabiner (J) |
| 1988 - 89 | Guernsey | | | 2013 - 14 | M Desperques (G) |
| 1990 | Jersey | | | 2015 | D Brabiner (J) |
| 1991 | Guernsey | | | 2016 | M Desperques (G) |
| 1992 | No Competition | | | 2017 | D Brabiner (J) |
| 1993 | Jersey | | | 2018 - 19 | G Britton (J) |
| 1994 | Guernsey | | | 2020 - 21 | No Competition (COVID-19) |
| 1995 - 24 | No Competition | | | 2022 - 24 | M Desperques (G) |
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| JUNIOR C I SNOOKER CHAMPIONSHIP | | | | | |
| 1987 | A Lihou (G) | | | | |
| 1988 | S Ward (G) | | | | |
| 1989 | A Bridgewater (J) | | | | |
| 1990 | M Reid (J) | | | | |
| 1991 | G Chippendale (G) | | | | |
| 1992 | No Competition | | | | |
| 1993 | A Brown (J) | | | | |
| 1994 | C Coates (J) | | | | |
| 1995 - 24 | No Competition | | | | |
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| JUNIOR C I BILLIARDS CHAMPIONS | | | | | |
| 1987 | A Bridgewater (J) | | | | |
| 1988 | A Lihou (G) | | | | |
| 1989 | P Le Sauvage (G) | | | | |
| 1990 | G Le Prevost (G) | | | | |
| 1991 | G Le Prevost (G) | | | | |
| 1992 | No Competition | | | | |
| 1993 | D Slous (J) | | | | |
| 1994 | C Coates (J) | | | | |
| 1995 - 24 | No Competition | . | | | |
