Shell Trophy, 1979-80

• Auckland v Central Districts at Auckland, 27-29 Dec 1979
• Otago v Northern Districts at Dunedin, 27-29 Dec 1979
• Wellington v Canterbury at Lower Hutt, 27-29 Dec 1979
• Canterbury v Northern Districts at Christchurch, 31 Dec 1979-2 Jan 1980
• Otago v Auckland at Alexandra, 31 Dec 1979-2 Jan 1980
• Wellington v Central Districts at Upper Hutt, 31 Dec 1979-2 Jan 1980
• Canterbury v Auckland at Christchurch, 4-6 Jan 1980
• Central Districts v Otago at Palmerston North, 4-6 Jan 1980
• Northern Districts v Wellington at Hamilton, 4-6 Jan 1980
• Auckland v Northern Districts at Auckland, 8-10 Jan 1980
• Central Districts v Canterbury at Napier, 8-10 Jan 1980
• Wellington v Otago at Lower Hutt, 8-10 Jan 1980
• Auckland v Wellington at Auckland, 12-14 Jan 1980
• Canterbury v Otago at Christchurch, 12-14 Jan 1980
• Northern Districts v Central Districts at Gisborne, 12-14 Jan 1980
• Auckland v Canterbury at Auckland, 19-21 Jan 1980
• Otago v Central Districts at Dunedin, 19-21 Jan 1980
• Wellington v Northern Districts at Lower Hutt, 19-21 Jan 1980
• Central Districts v Wellington at New Plymouth, 26-28 Jan 1980
• Northern Districts v Auckland at Tauranga, 26-28 Jan 1980
• Otago v Canterbury at Dunedin, 26-28 Jan 1980