First-Class Fastest Fifties by Minutes in New Zealand

Minutes
24	BG Cooper	Northern Districts v Canterbury	Harry Barker Reserve, Gisborne	1986/87
26	TD Astle	Canterbury v Otago	Village Green, Christchurch	2006/07
27	EB McSweeney	Wellington v Northern Districts	Basin Reserve, Wellington	1983/84
27	SL Stewart	Canterbury v Auckland	Hagley Oval, Christchurch	2013/14
28	CCR Dacre	Auckland v Wellington	Wellington College Ground, Wellington	1923/24
28	AWS Brice	Wellington v Otago	Basin Reserve, Wellington	1927/28
29	BR Hampton	Northern Districts v Wellington	Bay Oval, Mount Maunganui	2020/21
30	BR Taylor	New Zealand v West Indies	Eden Park, Auckland	1968/69
30	AR Adams	Auckland v Otago	Eden Park Outer Oval, Auckland	1997/98
31	BL Cairns	Otago v Wellington	Hutt Recreation Ground, Lower Hutt	1979/80
31	KR Rutherford	Otago v Central Districts	Horton Park, Blenheim	1990/91
32	SR Tendulkar	Indians v Central Districts	McLean Park, Napier	1998/99
33	GD Phillips	Auckland v Otago	University Oval, Dunedin	2021/22
34	GA Hick	Northern Districts v Canterbury	Lancaster Park, Christchurch	1987/88
35	VT Trumper	Australians v Canterbury	Lancaster Park, Christchurch	1913/14
35	PE McEwan	Canterbury v Auckland	Eden Park, Auckland	1983/84
36	SJ Maguiness	Wellington v Canterbury	Lancaster Park, Christchurch	1985/86
36	TG Southee	New Zealand v England	McLean Park, Napier	2007/08
36	TA Boult	Northern Districts v Otago	Bay Oval, Mount Maunganui	2018/19
36	RR O'Donnell	Auckland v Otago	Molyneux Park, Alexandra	2021/22
37	BB McCullum	Canterbury v Otago	Carisbrook, Dunedin	2005/06
37	MG Bracewell	Wellington v Auckland	Eden Park Outer Oval, Auckland	2020/21
37	DAJ Bracewell	Central Districts v Northern Districts	Bay Oval, Mount Maunganui	2022/23
38	IDS Smith	Central Districts v Auckland	McLean Park, Napier	1982/83
38	TK Canning	Auckland v Wellington	Basin Reserve, Wellington	2005/06
39	AW Thomas	Canterbury v Auckland	Hagley Oval, Christchurch	1918/19
39	BB McCullum	Otago v Wellington	Carisbrook, Dunedin	2001/02
40	C de Grandhomme	Northern Districts v Wellington	Seddon Park, Hamilton	2022/23
41	GRJ Matthews	Australians v Northern Districts	Seddon Park, Hamilton	1985/86
41	AJ Penn	Wellington v Canterbury	Village Green, Christchurch	2000/01
41	L Ronchi	Wellington v Auckland	Eden Park Outer Oval, Auckland	2013/14

The list shows 31 occurrences of 41 or less