| Plunket Shield | |
| The Shield was instituted for the 1906/07 season when it was decided in October 1906 that team with the best record should hold the trophy at the end of the season. In May 1907 this was confirmed to be Canterbury, the matches against the touring MCC team being taken into account. | |
| 1906/07 | Canterbury |
| From 1907/08 the holder of the trophy was decided on a challenge basis, | |
| 17 Dec 1907 | Auckland (7 matches) |
| 1 Feb 1911 | Canterbury (3 matches) |
| 12 Feb 1912 | Auckland (2 matches) |
| 31 Jan 1913 | Canterbury (10 matches) |
| 27 Dec 1918 | Wellington (1 match) |
| 24 Jan 1919 | Canterbury (3 matches) |
| 5 Jan 1920 | Auckland (4 matches) |
| 10 Jan 1921 | Wellington (1 match) |
| Wellington held the trophy until 24 Dec 1921 which was the start of the league for the 1921/22 season. | |
| 1921/22 | Auckland |
| 1922/23 | Canterbury |
| 1923/24 | Wellington |
| 1924/25 | Otago |
| 1925/26 | Wellington |
| 1926/27 | Auckland |
| 1927/28 | Wellington |
| 1928/29 | Auckland |
| 1929/30 | Wellington |
| 1930/31 | Canterbury |
| 1931/32 | Wellington |
| 1932/33 | Otago |
| 1933/34 | Auckland |
| 1934/35 | Canterbury |
| 1935/36 | Wellington |
| 1936/37 | Auckland |
| 1937/38 | Auckland |
| 1938/39 | Auckland |
| 1939/40 | Auckland |
| 1940/41-1944/45 | No competition – Second World War |
| 1945/46 | Canterbury |
| 1946/47 | Auckland |
| 1947/48 | Otago |
| 1948/49 | Canterbury |
| 1949/50 | Wellington |
| 1950/51 | Otago |
| 1951/52 | Cantebury |
| 1952/53 | Otago |
| 1953/54 | Central Districts |
| 1954/55 | Wellington |
| 1955/56 | Canterbury |
| 1956/57 | Wellington |
| 1957/58 | Otago |
| 1958/59 | Auckland |
| 1959/60 | Canterbury |
| 1960/61 | Wellington |
| 1961/62 | Wellington |
| 1962/63 | Northern Districts |
| 1963/64 | Auckland |
| 1964/65 | Canterbury |
| 1965/66 | Wellington |
| 1966/67 | Central Districts |
| 1967/68 | Central Districts |
| 1968/69 | Auckland |
| 1969/70 | Otago |
| 1970/71 | Central Districts |
| 1971/72 | Otago |
| 1972/73 | Wellington |
| 1973/74 | Wellington |
| 1974/75 | Otago |
| Shell Cup | |
| 1975/76 | Canterbury |
| 1976/77 | Northern Districts |
| 1977/78 | Canterbury |
| 1978/79 | Otago |
| Shell Trophy | |
| 1979/80 | Northern Districts |
| 1980/81 | Auckland |
| 1981/82 | Wellington |
| 1982/83 | Wellington |
| 1983/84 | Canterbury |
| 1984/85 | Wellington |
| 1985/86 | Otago |
| 1986/87 | Central Districts |
| 1987/88 | Otago |
| 1988/89 | Auckland |
| 1989/90 | Wellington |
| 1990/91 | Auckland |
| 1991/92 | Central Districts |
| Northern Districts | |
| 1992/93 | Northern Districts |
| 1993/94 | Canterbury |
| 1994/95 | Auckland |
| 1995/96 | Auckland |
| 1996/97 | Canterbury |
| 1997/98 | Canterbury |
| 1998/99 | Central Districts |
| 1999/00 | Northern Districtds |
| 2000/01 | Wellington |
| 2001/02 | Auckland |
| State Championship | |
| 2002/03 | Auckland |
| 2003/04 | Wellington |
| 2004/05 | Auckland |
| 2005/06 | Central Districts |
| 2006/07 | Northern Districts |
| 2007/08 | Canterbury |
| 2008/09 | Auckland |
| Plunket Shield | |
| 2009/10 | Northern Districts |
| 2010/11 | Canterbury |
| 2011/12 | Northern Districts |
| 2012/13 | Central Districts |
| 2013/14 | Canterbury |
| 2014/15 | Canterbury |
| 2015/16 | Auckland |
| 2016/17 | Canterbury |
| 2017/18 | Central Districts |
| 2018/19 | Central Districts |
| 2019/20 | Wellington |
| 2020/21 | Canterbury |
| 2021/22 | Auckland |
| 2022/23 | Central Districts |
| 2023/24 | Wellington |
| 2024/25 | Northern Districts |
Peter Griffiths, Ric Finlay