D Elgar of South Africa scored 140 and 89 in the ongoing test against New Zealand at Dunedin to provide the 55^th occasion of a South African batsman scoring a century and a fifty in a test including the occasions of centuries in both innings of a test. All such occasions are listed below

No	Player	FI	SI	Opposition	Ground	Start Date
1	GA Faulkner	78	123	v England	Johannesburg	01 Jan 1910
2	GA Faulkner	56	115	v Australia	Adelaide	07 Jan 1911
3	AW Nourse	64	111	v Australia	Johannesburg	12 Nov 1921
4	EL Dalton	117	57*	v England	The Oval	17 Aug 1935
5	A Melville	78	103	v England	Durban	03 Mar 1939
6	PGV van der Bijl	125	97	v England	Durban	03 Mar 1939
7	A Melville	189	104*	v England	Nottingham	07 Jun 1947
8	B Mitchell	120	189*	v England	The Oval	16 Aug 1947
9	AD Nourse	65	114	v Australia	Cape Town	31 Dec 1949
10	EAB Rowan	236	60*	v England	Leeds	26 Jul 1951
11	JHB Waite	115	59	v Australia	Johannesburg	23 Dec 1957
12	EJ Barlow	109	54	v Australia	Melbourne	01 Jan 1964
13	EJ Barlow	138	78	v England	Cape Town	01 Jan 1965
14	TL Goddard	60	112	v England	Johannesburg	22 Jan 1965
15	RG Pollock	137	77*	v England	Port Elizabeth	12 Feb 1965
16	RG Pollock	125	59	v England	Nottingham	05 Aug 1965
17	DT Lindsay	69	182	v Australia	Johannesburg	23 Dec 1966
18	BA Richards	81	126	v Australia	Port Elizabeth	05 Mar 1970
19	G Kirsten	102	133	v India	Kolkata	27 Nov 1996
20	BM McMillan	103*	59*	v India	Cape Town	02 Jan 1997
21	G Kirsten	77	108*	v Australia	Adelaide	30 Jan 1998
22	DJ Cullinan	113	68	v Sri Lanka	Cape Town	19 Mar 1998
23	WJ Cronje	126	67	v England	Nottingham	23 Jul 1998
24	JH Kallis	110	88*	v West Indies	Cape Town	02 Jan 1999
25	DJ Cullinan	103	73	v West Indies	Port of Spain	17 Mar 2001
26	DJ Cullinan	134	82	v West Indies	Bridgetown	29 Mar 2001
27	HH Gibbs	51	104	v Australia	Durban	15 Mar 2002
28	GC Smith	277	85	v England	Birmingham	24 Jul 2003
29	G Kirsten	130	60	v England	Leeds	21 Aug 2003
30	G Kirsten	54	118	v Pakistan	Faisalabad	24 Oct 2003
31	JH Kallis	73	130*	v West Indies	Cape Town	02 Jan 2004
32	JH Kallis	92	150*	v New Zealand	Hamilton	10 Mar 2004
33	JH Kallis	121	55	v India	Kolkata	28 Nov 2004
34	JH Kallis	149	66	v England	Cape Town	02 Jan 2005
35	HH Gibbs	161	98	v England	Johannesburg	13 Jan 2005
36	AB de Villiers	92	109	v England	Centurion	21 Jan 2005
37	GC Smith	126	50*	v West Indies	St John’s	29 Apr 2005
38	JH Kallis	111	50*	v Australia	Sydney	02 Jan 2006
39	JH Kallis	155	100*	v Pakistan	Karachi	01 Oct 2007
40	JH Kallis	59	107*	v Pakistan	Lahore	08 Oct 2007
41	ND McKenzie	94	155*	v India	Chennai	26 Mar 2008
42	HM Amla	159	81	v India	Chennai	26 Mar 2008
43	AB de Villiers	63	106*	v Australia	Perth	17 Dec 2008
44	HM Amla	114	123*	v India	Kolkata	14 Feb 2010
45	JH Kallis	110	62*	v West Indies	Basseterre	18 Jun 2010
46	HM Amla	80	118*	v Pakistan	Dubai (DSC)	12 Nov 2010
47	JH Kallis	73	135*	v Pakistan	Dubai (DSC)	12 Nov 2010
48	JH Kallis	161	109*	v India	Cape Town	02 Jan 2011
49	GC Smith	53	115	v New Zealand	Dunedin	07 Mar 2012
50	JA Rudolph	52	105*	v New Zealand	Dunedin	07 Mar 2012
51	F du Plessis	78	110*	v Australia	Adelaide	22 Nov 2012
52	HM Amla	109	96	v England	Centurion	22 Jan 2016
53	SC Cook	59	117	v Sri Lanka	Port Elizabeth	26 Dec 2016
54	D Elgar	129	55	v Sri Lanka	Cape Town	02 Jan 2017
55	D Elgar	140	89	v New Zealand	Dunedin	08 Mar 2017

D Elgar of South Africa scored 140 and 89 in the ongoing test against New Zealand at Dunedin to provide the fourth occasion of a South African batsman scoring a century and a fifty in a test against New Zealand.  All such occasions are listed below. D Elgar became the first South African batsman to score a century in the first innings and a fifty in the second innings against New Zealand.

No	Player	FI	SI	Opposition	Ground	Start Date
1	JH Kallis	92	150*	v New Zealand	Hamilton	10 Mar 2004
2	GC Smith	53	115	v New Zealand	Dunedin	07 Mar 2012
3	JA Rudolph	52	105*	v New Zealand	Dunedin	07 Mar 2012
4	D Elgar	140	89	v New Zealand	Dunedin	08 Mar 2017

G Kirsten {04}, HM Amla {04} and JH Kallis {11} are the three South African batsmen to accomplish such a feat on four or more occasions. The performance of these three batsmen is furnished below. 

No	Player	FI	SI	Opposition	Ground	Start Date
1	G Kirsten	102	133	v India	Kolkata	27 Nov 1996
2	G Kirsten	77	108*	v Australia	Adelaide	30 Jan 1998
3	G Kirsten	130	60	v England	Leeds	21 Aug 2003
4	G Kirsten	54	118	v Pakistan	Faisalabad	24 Oct 2003
1	HM Amla	159	81	v India	Chennai	26 Mar 2008
2	HM Amla	114	123*	v India	Kolkata	14 Feb 2010
3	HM Amla	80	118*	v Pakistan	Dubai (DSC)	12 Nov 2010
4	HM Amla	109	96	v England	Centurion	22 Jan 2016
1	JH Kallis	110	88*	v West Indies	Cape Town	02 Jan 1999
2	JH Kallis	73	130*	v West Indies	Cape Town	02 Jan 2004
3	JH Kallis	92	150*	v New Zealand	Hamilton	10 Mar 2004
4	JH Kallis	121	55	v India	Kolkata	28 Nov 2004
5	JH Kallis	149	66	v England	Cape Town	02 Jan 2005
6	JH Kallis	111	50*	v Australia	Sydney	02 Jan 2006
7	JH Kallis	155	100*	v Pakistan	Karachi	01 Oct 2007
8	JH Kallis	59	107*	v Pakistan	Lahore	08 Oct 2007
9	JH Kallis	110	62*	v West Indies	Basseterre	18 Jun 2010
10	JH Kallis	73	135*	v Pakistan	Dubai (DSC)	12 Nov 2010
11	JH Kallis	161	109*	v India	Cape Town	02 Jan 2011

It is interesting to note that all these batsmen have at least one occasion of scoring centuries in each innings of a test and one such occasion against India

No	Player	FI	SI	Opposition	Ground	Start Date
1	G Kirsten	102	133	v India	Kolkata	27 Nov 1996
2	HM Amla	114	123*	v India	Kolkata	14 Feb 2010
3	JH Kallis	155	100*	v Pakistan	Karachi	01 Oct 2007
4	JH Kallis	161	109*	v India	Cape Town	02 Jan 2011