The North Island AC Championship began back in the 1919/20 season, making it the third longest running current CNZ event. The Open Singles Championship is contested for the Challenge Trophy, presented by the Manawatu Bowling & Croquet Club and the Hawkes Bay Association. The Hawken Cup, for the 4+ Handicap Singles, was fist competed in 1945. The Alison Wall Memorial Plate and Mrs D. Currin Challenge Trophy for 0-3.5 Handicap were introduced in the 2010s.
Bob Jackson won the Singles a remarkable 17 times – a record for a CNZ event. Other notable multiple winners include Arthur Ross and Paul Skinley (both five times) and Greg Bryant who has won it four times. In the doubles, Bob Jackson took the title nine times, with eight different partners along the way. Rene Watkins and Paul Skinley each won the doubles on five occasions.
In 2022, the CNZ Tournament Committee decided that the North Island AC Championship would be held in alternate years with the South Island AC Championship.
| Year | Singles Winner | Singles Plate | Doubles Winners | 0-3.5 Handicap | 4+ Handicap | |
|---|---|---|---|---|---|---|
| 2024 | John Christie | Jarrod Coutts | John Christie (2) | Nelson Morrow | Luke Rive | Mike Stuckey |
| 2023 | Not Held | |||||
| 2022 | Not Held | |||||
| 2021 | Steve Clarke | Peter Filbee (2) | Peter Filbee | Cole Wenmoth | Cindy Clarke (2) | Nicholas Flood |
| 2020 | Tony Stephens (2) | Peter Filbee | John Christie | Tony Stephens | Cindy Clarke | Not Held |
| 2019 | Andre Murray & Steve Jones | Liz McLay | Not Held | Robert McLay (3) | ||
| 2018 | Josh Freeth | Mike Crashley | Bruce Baker (2) | Mike Crashley | Kathie Grant | Sue Roberts |
| 2017 | Paul Skinley (5) | John Christie | Harps Tahurangi | Paul Skinley (5) | Robert McLay (2) | |
| 2016 | Greg Bryant (4) | Steve Jones | Greg Bryant | Felix Webby | Baubre Murray | |
| 2015 | Greg Bryant (3) | John Broughton | Steve Clarke | Bruce Baker | Robert McLay | |
| 2014 | Toby Garrison (2) | Chris Clarke | Michael Wright | Geoff Gibson | ||
| 2013 | Greg Bryant (2) | Nina Mayard-Husson (3) | Aiken Hakes | Wayne Gair | ||
| 2012 | Greg Bryant | Phillip Drew (2) | Aaron Westerby (3) | Harry Murrel | ||
| 2011 | Paul Skinley (4) | Nina Mayard-Husson (2) | Paul Skinley (4) | Carol Pugh | ||
| 2010 | Paul Skinley (3) | Phillip Drew | Paul Skinley (3) | Hamish McIntosh | ||
| 2009 | Aaron Westerby (3) | Nina Mayard-Husson | Paul Skinley (2) | Trevor Ballantyne | ||
| 2008 | Bob Jackson (17) | Bob Jackson (9) | Malcolm Cawley (2) | Brian Cameron | ||
| 2007 | Murray McNae | Bob Jackson (8) | Roger Adamson | Duncan Dixon | ||
| 2006 | Robert Lowe (2) | Malcolm Cawley | Pam Fisher | John McInnes | ||
| 2005 | Bob Jackson (16) | Criena Dawson | Bob Jackson (7) | Trevor Fulcher | ||
| 2004 | Robert Lowe | Criena Dawson | Bob Jackson (6) | Pamela Burton | ||
| 2003 | Criena Dawson | Don Reyland (4) | Richard Gillingham | Robin Beetge | ||
| 2002 | Bob Jackson (15) | Don Reyland (3) | Peter Batchelor | Mike Barker | ||
| 2001 | Bob Jackson (14) | Don Reyland (2) | Bob Jackson (5) | Evan Rait | ||
| 2000 | Bob Jackson (13) | Don Reyland | Kevin Schick (2) | Aiton Higgott | ||
| 1999 | Toby Garrison | Bob Jackson (4) | Kevin Schick | Not Held | ||
| 1998 | Bob Jackson (12) | Laurie Edwards | Rex Phillips | Tony Hinde | ||
| 1997 | Bob Jackson (11) | Gordon Smith | Stephen Smith | Margaret Somers | ||
| 1996 | Bob Jackson (10) | Karl Haswell (2) | Roger Dunnet | Richard Bonner | ||
| 1995 | Bob Jackson (9) | Richard Baker (2) | Tony Baker | Maya Stutz | ||
| 1994 | Bob Jackson (8) | Andrew Johnson | Karl Haswell | L. S. Jackson | ||
| 1993 | Aaron Westerby (2) | Richard Baker | Aaron Westerby (2) | Mrs B. Tomlinson | ||
| 1992 | Aaron Westerby | Peter Harding | Merv Keegan | Rex Phillips | ||
| 1991 | Tony Stephens | Steve Jones | Aaron Westerby | Barry Browne | ||
| 1990 | Not Held | |||||
| 1989 | Bob Jackson (7) | Bob Jackson (3) | Mary Jackson | Aaron Westerby | ||
| 1988 | Bob Jackson (6) | Kevin Fellows | Jan MacLeod | Bernie Sakey | ||
| 1987 | John Prince (2) | Robert Bartholomeaus | Greg Byers | Stuart Smith | ||
| 1986 | Bob Jackson (5) | Dennis Bulloch (2) | Madeline Hadwin | Peter Harding | ||
| 1985 | Robert Bartholomeaus | Richard Clarke (4) | Dennis Bulloch | Stephen Goldfinch | ||
| 1984 | Bob Jackson (4) | Chris Shilling | Paul Skinley | Conrad Peterson | ||
| 1983 | Joe Hogan (3) | Joan Filbee | Frank Brooking | Paul Wehipeihana | ||
| 1982 | Joe Hogan (2) | Joe Hogan | Richard Duncan | Greg Byers | ||
| 1981 | Paul Skinley (2) | Martin Murray | Andre Hope | Stephen Wardle | ||
| 1980 | Kath Johnstone | Jim Wardle | John Read | John Baker | ||
| 1979 | Bob Jackson (3) | Kath Johnstone (3) | Marnie Ward (2) | Kathie Weir | ||
| 1978 | Bob Jackson (2) | Kath Johnstone (2) | Marnie Ward | Val Clarke | ||
| 1977 | Joe Hogan | Kath Johnstone | Bob Jackson (2) | Linda Duke | ||
| 1976 | Bob Jackson | Gordon Rowling | Bob Jackson | Kevin Smith | ||
| 1975 | Paul Skinley | Richard Clarke (3) | Judith Clarke (3) | Peter Adsett | ||
| 1974 | Richard Clarke | Richard Clarke (2) | Judith Clarke (2) | Alan Bowes | ||
| 1973 | C. Wadsworth | Richard Clarke | Judith Clarke | Judith Clarke | ||
| 1972 | John Prince | Mrs F. Dorman (2) | Mrs F. Jacob (2) | Mrs M. H. Churton | ||
| 1971 | Keith Woollett | Jean Jarden (4) | John Prince | Dennis Bulloch | ||
| 1970 | Richard Clarke | Mrs F. Walker | Keith Woollett | Cliff Anderson | ||
| 1969 | Raewyn Elliot | Charles Crosby | Frank Bennett (2) | Mrs B. George | ||
| 1968 | Arthus Ross (5) | Mrs F. Dorman | Mrs F. Jacob | J. McQueen | ||
| 1967 | Jean Jarden (2) | Mrs G. Collins (2) | Arthur Ross (4) | Richard Clarke | ||
| 1966 | Charles Crosby | Herbert Ford | Fred Chandler | Gloria King | ||
| 1965 | Cassie Middlemiss | Jean Jarden (3) | Gladys Hardwood | Phyllis Clarke | ||
| 1964 | Les Middlemiss | Cassie Middlemiss (2) | Les Middlemiss (2) | Keith Woollett | ||
| 1963 | Mrs S. G. Morgan | Cassie Middlemiss | Les Middlemiss | Mrs D. A. Hows | ||
| 1962 | Jean Jarden | Jean Jarden (2) | Mrs N. Crone | Miss A. W. Gibbs | ||
| 1961 | Chris Purdy | Jean Jarden | Mrs G. Collins | Raewyn Elliot | ||
| 1960 | Arthur Ross (4) | Chris Purdy (3) | Arthur Ross (3) | Mrs E. Norris | ||
| 1959 | Mrs C. T. Wadsworth | Chris Purdy (2) | Arthur Ross (2) | Charles Crosby | ||
| 1958 | Mrs J. Lockett | Chris Purdy | Ina Moffitt | Tony Stephens | ||
| 1957 | Clem Watkins (2) | Mrs L. Brown (2) | Mrs J. Lockett (2) | B. D. Buchanan | ||
| 1956 | Clem Watkins | Ashley Heenan | Clem Watkins (2) | Miss J. Aiken | ||
| 1955 | Mrs I. M. Cadwallader | Rene Watkins (5) | Clem Watkins | Edna Hight | ||
| 1954 | Mrs W. Lange | Mrs L. Brown | Mrs J. Lockett | Mrs H. S. Appley | ||
| 1953 | C. T. Wadsworth | Mrs A. Lange | Frank Bennett | Mrs R. J. Brierly | ||
| 1952 | Mrs F. W. Breckon | Mrs H. Hilton | Mrs J. Clarke | E. O. Mason | ||
| 1951 | Mrs W. N. Corbet (2) | Mrs E. Tingey (2) | Mrs C. A. Ward (2) | Mrs A. Waddell | ||
| 1950 | Mrs W. N. Corbet | Mrs W. N. Corbet | Mrs S. R. Hawken (2) | Mrs D. J. Lovelock | ||
| 1949 | D. McClymont | Mrs W. A. Forsythe (2) | Ivy Wainwright (2) | Mrs P. J. Hawke | ||
| 1948 | Margaret Claughton | Mrs E. Tingey | Mrs C. A. Ward | Miss V. E. Drury | ||
| 1947 | A. E. Ogier (2) | Mrs W. A. Forsythe | Ivy Wainwright | C. Wadsworth | ||
| 1946 | W. S. Beamish | Mrs H. Kibblewhite | Mrs S. R. Hawken | Not Held | ||
| 1945 | Not Held | W. S. Beamish | Mrs Cole | Mrs Knowles | ||
| 1944 | Not Held | |||||
| 1943 | Not Held | |||||
| 1942 | A. E. Ogier | W. F. Jarvie | Mrs F. C. Bryan | |||
| 1941 | Not Held | |||||
| 1940 | Capt F. L. Cartnell | Capt F. L. Cartnell | Mrs A. H. Morgan | |||
| 1939 | A. J. Gibbs (3) | H. P. Stratton (4) | Rene Watkins (4) | |||
| 1938 | Mrs D. C. Henderson | Rev W. E. Tye | Mrs H. Mathewson | |||
| 1937 | Arthur Ross (3) | H. P. Stratton (3) | Rene Watkins (3) | |||
| 1936 | A. J. Gibbs (2) | A. J. Gibbs (2) | Mrs A. J. Gibbs | |||
| 1935 | Mrs H. Kibblewhite | A. J. Gibbs | J. W. Lowe | |||
| 1934 | Mrs W. E. Caldow | Mrs E. G. Anstis | Mrs T. Simpson | |||
| 1933 | Mrs F. A. Tiffen | Rene Watkins (2) | Mrs F. A. Tiffen | |||
| 1932 | Mrs W. Cole | H. P. Stratton (2) | Mrs W. Cole | |||
| 1931 | W. Windsor Richards | W. Windsor Richards | Mrs R. M. Gardner | |||
| 1930 | A. J. Gibbs | Mrs R. D. Cambrill | Mrs M. Pitcaithley | |||
| 1929 | Mrs D. D. Steel | Col. Du Pre – GB | Mrs D. D. Steel | |||
| 1928 | J. Murray | Mrs A. Croxford | Mrs W. Healey | |||
| 1927 | Rene Watkins (2) | Rene Watkins | H. P. Stratton | |||
| 1926 | Mrs F. A. Tiffen | Rev Creed Meredith | Mrs R. Leech | |||
| 1925 | J. McDowell | Mrs W. Brabant | Mrs A. Coutts | |||
| 1924 | Rene Watkins | Mrs J. McDowell | Mrs J. Renton Watt | |||
| 1923 | H. P. Stratton (2) | J. Murray | Miss M. Hesketh | |||
| 1922 | Arthur Ross (2) | Arthur Ross | Mrs M. Aynsley | |||
| 1921 | Arthur Ross | H. A. Penn | Miss C. Gerard | |||
| 1920 | H. P. Stratton | Mrs E. L. Baxter | Miss B. Laurenson |
