| Match | Summary | Result | 
| Round 1 | 
| Auckland v Otago Auckland, 27 Nov 1999
 | Auck 208 (50) Otago 82 (36.5)
 | Auckland won by 126 runs | 
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| Central Districts v Wellington Wanganui, 27 Nov 1999
 | Well 173/8 (50) CD 64/2 (20.1)
 | Wellington won on faster scoring rate | 
| 
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| Auckland v Otago Auckland, 28 Nov 1999
 | Auck 209/7 (50) Otago 72 (40.3)
 | Auckland won by 137 runs | 
| 
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| Central Districts v Wellington Wanganui, 28 Nov 1999
 | CD - Well -
 | Match abandoned without a ball bowled | 
| 
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| Northern Districts v Otago Hamilton, 29 Nov 1999
 | Otago 146 (49.4) ND 147/6 (42.1)
 | Northern Districts won by 4 wickets | 
| 
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| Northern Districts v Otago Hamilton, 30 Nov 1999
 | Otago 186/7 (50) ND 187/4 (47.3)
 | Northern Districts won by 6 wickets | 
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| Round 2 | 
| Wellington v Northern Districts Wellington, 4 Dec 1999
 | Well 204/7 (50) ND 46 (21.5)
 | Wellington won by 158 runs | 
| 
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| Wellington v Northern Districts Wellington, 5 Dec 1999
 | ND 130/7 (50) Well 132/3 (39.1)
 | Wellington won by 7 wickets | 
| 
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| Central Districts v Northern Districts Wanganui, 6 Dec 1999
 | ND 179/9 (50) CD 182/5 (49.5)
 | Central Districts won by 5 wickets | 
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| Central Districts v Northern Districts Wanganui, 7 Dec 1999
 | ND 100 (40.1) CD 101/8 (31.1)
 | Central Districts won by 2 wickets | 
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| Round 3 | 
| Canterbury v Central Districts Christchurch, 11 Dec 1999
 | Cant 257/6 (50) CD 143/7 (50)
 | Canterbury won by 114 runs | 
| 
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| Auckland v Northern Districts Auckland, 11 Dec 1999
 | Auck 238/8 (50) ND 133/9 (48)
 | Auckland won by 105 runs | 
| 
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| Canterbury v Central Districts Christchurch, 12 Dec 1999
 | Cant 231/7 (50) CD 235/4 (48.2)
 | Central Districts won by 6 wickets | 
| 
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| Auckland v Northern Districts Auckland, 12 Dec 1999
 | ND 159/9 (50) Auck 162/6 (37.1)
 | Auckland won by 4 wickets | 
| 
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| Otago v Central Districts Dunedin, 13 Dec 1999
 | Otago - CD -
 | Match abandoned without a ball bowled | 
| 
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| Otago v Central Districts Dunedin, 14 Dec 1999
 | Otago - CD -
 | Match abandoned without a ball bowled | 
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| Round 4 | 
| Otago v Wellington Dunedin, 18 Dec 1999
 | Otago 110 (39.4) Well 76/1 (18.4)
 | Wellington won by 9 wickets (revised target) | 
| 
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| Otago v Wellington Dunedin, 19 Dec 1999
 | Well 86 (35.5) Otago 88/4 (29.4)
 | Otago won by 6 wickets | 
| 
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| Canterbury v Wellington Christchurch, 20 Dec 1999
 | Cant 298/4 (50) Well 159 (42.4)
 | Canterbury won by 139 runs | 
| 
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| Canterbury v Wellington Christchurch, 21 Dec 1999
 | Well 249/5 (50) Cant 250/3 (46)
 | Canterbury won by 7 wickets | 
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| Round 5 | 
| Northern Districts v Canterbury Hamilton, 8 Jan 2000
 | Cant 238 (50) ND 131 (47.4)
 | Canterbury won by 107 runs | 
| 
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| Northern Districts v Canterbury Hamilton, 9 Jan 2000
 | ND 116 (40.5) Cant 117/3 (29.4)
 | Canterbury won by 7 wickets | 
| 
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| Auckland v Canterbury Auckland, 10 Jan 2000
 | Cant 156/9 (50) Auck 160/5 (48.5)
 | Auckland won by 5 wickets | 
| 
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| Auckland v Canterbury Auckland, 11 Jan 2000
 | Auck 84 (36.3) Cant 85/0 (16.2)
 | Canterbury won by 10 wickets | 
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| Round 6 | 
| Central Districts v Auckland Wanganui, 15 Jan 2000
 | Auck 238/4 (50) CD 43 (15.1)
 | Auckland won by 195 runs | 
| 
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| Otago v Canterbury Dunedin, 15 Jan 2000
 | Otago 107 (42) Cant 109/1 (32.3)
 | Canterbury won by 9 wickets | 
| 
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| Central Districts v Auckland Wanganui, 16 Jan 2000
 | Auck 123 (40.1) CD 106 (49.4)
 | Auckland won by 17 runs | 
| 
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| Otago v Canterbury Dunedin, 16 Jan 2000
 | Cant 182/6 (50) Otago 106 (48.2)
 | Canterbury won by 76 runs | 
| 
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| Wellington v Auckland Wellington, 17 Jan 2000
 | Auck 228/5 (50) Well 111 (36.5)
 | Auckland won by 117 runs | 
| 
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| Wellington v Auckland Wellington, 18 Jan 2000
 | Auck 172/7 (50) Well 166 (49.4)
 | Auckland won by 6 runs | 
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| Final | 
| Auckland v Canterbury Auckland, 22 Jan 2000
 | Cant 236/5 (50) Auck 238/4 (48.3)
 | Auckland won by 6 wickets | 
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