Fastest 100s & 50s in Tests

Test 100s
288 min	WR Hammond	England v New Zealand	Auckland	1932-33
336 min	DG Bradman	Australia v England	Leeds	1930
214 min	DG Bradman	Australia v England	Leeds	1930
223 min	SJ McCabe	Australia v England	Nottingham	1938
226 min	VT Trumper	Australia v South Africa	Adelaide	1910-11
234 min	DG Bradman	Australia v England	Lord's	1930
240 min	WR Hammond	England v New Zealand	Auckland	1932-33
241 min	SE Gregory	Australia v England	Sydney	1894-95
220 balls	IT Botham	England v India	The Oval	1982
232 balls	CG Greenidge	West Indies v England	Lord's	1984
240 balls	CH Lloyd	West Indies v India	Bombay	1974-75
241 balls	Zaheer Abbas	Pakistan v India	Lahore	1982-83
56 balls	IVA Richards	West Indies v England	St John's	1985-6
67 balls	JM Gregory	Australia v South Africa	Johannesburg	1921-2
71 balls	RC Fredericks	West Indies v Australia	Perth	1975-6
74 balls	M Azharuddin	India v South Africa	Calcutta	1996-7
74 balls	Majid Khan	Pakistan v New Zealand	Karachi	1976-7
74 balls	Kapil Dev	India v Sri Lanka	Kanpur	1986-7
76 balls	GL Jessop	England v Australia	The Oval	1902
Test 50's
28 min	JT Brown	England v Australia	Melbourne	1894-95
29 min	SA Durani	India v England	Kanpur	1963-64
30 min	EAV Williams	West Indies v England	Bridgetown	1947-48
30 min	BR Taylor	New Zealand v West Indies	Auckland	1968-69
30 balls	Kapil Dev	India v Pakistan	Karachi	1982-83
31 balls	WJ Cronje	South Africa v Sri Lanka	Centurion	1997-98
32 balls	IVA Richards	West Indies v India	Kingston	1982-83
32 balls	IT Botham	England v New Zealand	The Oval	1986