Twenty20 Fastest Fifties by Balls (where recorded) in New Zealand

Balls
14	K Noema-Barnett	Central Districts v Otago	Queen's Park, Invercargill	2010/11
14	C Munro	New Zealand v Sri Lanka	Eden Park, Auckland	2015/16
15	MJ Guptill	Auckland v Central Districts	Pukekura Park, New Plymouth	2007/08
16	LRPL Taylor	Central Districts v Otago	University Oval, Dunedin	2005/06
16	JD Ryder	Wellington v Central Districts	McLean Park, Napier	2012/13
16	FH Allen	Wellington v Central Districts	Basin Reserve, Wellington	2020/21
17	L Vincent	Auckland v Central Districts	Pukekura Park, New Plymouth	2007/08
18	BB McCullum	Canterbury v Auckland	Eden Park Outer Oval, Auckland	2005/06
18	LJ Vivian	Auckland v Central Districts	Pukekura Park, New Plymouth	2008/09
18	C Munro	New Zealand v West Indies	Bay Oval, Mount Maunganui	2017/18
18	C Munro	New Zealand v England	Seddon Park, Hamilton	2017/18
18	TL Seifert	Northern Districts v Canterbury	Hagley Oval, Christchurch	2019/20
18	FH Allen	New Zealand v Bangladesh	Eden Park, Auckland	2020/21
19	LRPL Taylor	Central Districts v Auckland	Pukekura Park, New Plymouth	2009/10
19	MJ Guptill	New Zealand v Sri Lanka	Eden Park, Auckland	2015/16
19	JD Ryder	Central Districts v Canterbury	Saxton Oval, Nelson	2017/18
19	MS Chapman	Auckland v Wellington	Eden Park Outer Oval, Auckland	2017/18
19	MJ Guptill	New Zealand v England	Eden Park, Auckland	2019/20
19	CJ Bowes	Canterbury v Auckland	Eden Park Outer Oval, Auckland	2019/20
19	KD Clarke	Northern Districts v Canterbury	Seddon Park, Hamilton	2021/22
19	GD Phillips	New Zealand v Bangladesh	Hagley Oval, Christchurch	2022/23
20	DW Houpapa	Auckland v Central Districts	Eden Park Outer Oval, Auckland	2006/07
20	JD Ryder	Wellington v Auckland	Eden Park Outer Oval, Auckland	2007/08
20	NR Parlane	Wellington v Central Districts	Basin Reserve, Wellington	2009/10
20	ID Blackwell	Central Districts v Auckland	Pukekura Park, New Plymouth	2010/11
20	C de Grandhomme	Auckland v Central Districts	Pukekura Park, New Plymouth	2012/13
20	C Munro	Auckland v Central Districts	Eden Park Outer Oval, Auckland	2015/16
20	TC Bruce	Central Districts v Wellington	Pukekura Park, New Plymouth	2017/18
20	DA Warner	Australia v New Zealand	Eden Park, Auckland	2017/18
20	DJ Mitchell	Northern Districts v Central Districts	McLean Park, Napier	2018/19
20	NT Broom	Otago v Wellington	University Oval, Dunedin	2018/19
20	C Munro	Auckland v Canterbury	Eden Park Outer Oval, Auckland	2019/20
20	AP Devcich	Northern Districts v Auckland	Eden Park Outer Oval, Auckland	2019/20
20	FH Allen	Wellington v Auckland	Basin Reserve, Wellington	2020/21
20	FH Allen	Wellington v Otago	University Oval, Dunedin	2020/21
20	DAJ Bracewell	Central Districts v Northern Districts	Fitzherbert Park, Palmerston North	2023/24

The list shows 36 occurrences of 20 or less