SPD Smith of Australia registered his sixth century in the calendar year 2015 when he scored   in the ongoing test against West Indies at Melbourne. His centuries are listed below

No	Runs	4s	6s	Pos	Inns	Opposition	Ground	Start Date
1	117	15	0	4	1	v India	Sydney	06 Jan 2015
2	199	21	2	3	1	v West Indies	Kingston	11 Jun 2015
3	215	25	1	3	1	v England	Lord’s	16 Jul 2015
4	143	17	2	3	1	v England	The Oval	20 Aug 2015
5	138	18	0	3	3	v New Zealand	Perth	13 Nov 2015
6	109*	6	0	4	1	v West Indies	Melbourne	26 Dec 2015

SPD Smith’s feat of six centuries in a calendar year provides the 17^th occasion of a batsman scoring six or more centuries in a calendar year in the annals of test cricket. All such occasions are listed below

No	Player	Team	Mat	Inns	NO	Runs	HS	Ave	100s	Year
1	Mohd Yousuf	Pak	11	19	1	1788	202	99.33	9	2006
2	IVA Richards	Win	11	19	0	1710	291	90.00	7	1976
3	PA de Silva	Srl	11	19	3	1220	168	76.25	7	1997
4	RT Ponting	Aus	10	18	3	1333	196	88.86	7	2006
5	SR Tendulkar	Ind	14	23	3	1562	214	78.10	7	2010
6	DCS Compton	Eng	9	15	1	1159	208	82.78	6	1947
7	GS Sobers	Win	8	13	4	1299	365*	144.33	6	1958
8	ML Hayden	Aus	11	17	1	1160	197	72.50	6	2002
9	MP Vaughan	Eng	14	26	2	1481	197	61.70	6	2002
10	RT Ponting	Aus	11	18	3	1503	257	100.20	6	2003
11	DR Martyn	Aus	14	26	2	1353	161	56.37	6	2004
12	RT Ponting	Aus	15	28	5	1544	207	67.13	6	2005
13	GC Smith	SAF	15	25	2	1656	232	72.00	6	2008
14	TM Dilshan	Srl	11	18	1	1097	162	64.52	6	2009
15	JH Kallis	SAF	11	19	4	1198	201*	79.86	6	2010
16	DA Warner	Aus	9	18	0	1136	145	63.11	6	2014
17	SPD Smith	Aus	13	23	2	1270	215	63.50	6	2015

SPD Smith’s feat of six centuries in a calendar year provides the seventh occasion of an Australian batsman scoring six or more centuries in a calendar year in the annals of test cricket. All such occasions are listed below. SPD Smith is the fifth Australian batsman to perform the feat. RT Ponting has accomplished the feat on three occasions – in 2003, 2005 and 2006.  This feat by RT Ponting is unparalleled in the annals of test crikcet. Apart from this record – RT Ponting also holds the Australian record for most centuries in a calendar year. He has scored seven centuries in 2007

No	Player	Team	Mat	Inns	NO	Runs	HS	Ave	100s	Year
1	RT Ponting	Aus	10	18	3	1333	196	88.86	7	2006
2	ML Hayden	Aus	11	17	1	1160	197	72.50	6	2002
3	RT Ponting	Aus	11	18	3	1503	257	100.20	6	2003
4	DR Martyn	Aus	14	26	2	1353	161	56.37	6	2004
5	RT Ponting	Aus	15	28	5	1544	207	67.13	6	2005
6	DA Warner	Aus	9	18	0	1136	145	63.11	6	2014
7	SPD Smith	Aus	13	23	2	1270	215	63.50	6	2015