Azhar Ali of Pakistan scored 302 not out against West Indies in the ongoing test at Dubai-DSC to provide the 29^th occasion of a batsman scoring 300 plus runs in a test innings. All such occasions are listed below chronologically. Incidentally, the ongoing test at Dubai DSC was the 400th test for Pakistan.

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	A Sandham	325	1	Eng	Win	Kingston	03 Apr 1930
2	DG Bradman	334	1	Aus	Eng	Leeds	11 Jul 1930
3	WR Hammond	336*	2	Eng	NZl	Auckland	31 Mar 1933
4	DG Bradman	304	2	Aus	Eng	Leeds	20 Jul 1934
5	L Hutton	364	1	Eng	Aus	The Oval	20 Aug 1938
6	Hanif Mohammad	337	3	Pak	Win	Bridgetown	17 Jan 1958
7	GS Sobers	365*	2	Win	Pak	Kingston	26 Feb 1958
8	RB Simpson	311	1	Aus	Eng	Manchester	23 Jul 1964
9	JH Edrich	310*	1	Eng	NZl	Leeds	08 Jul 1965
10	RM Cowper	307	2	Aus	Eng	Melbourne	11 Feb 1966
11	LG Rowe	302	2	Win	Eng	Bridgetown	06 Mar 1974
12	GA Gooch	333	1	Eng	Ind	Lord’s	26 Jul 1990
13	BC Lara	375	1	Win	Eng	St John’s	16 Apr 1994
14	ST Jayasuriya	340	2	Srl	Ind	Colombo (RPS)	02 Aug 1997
15	MA Taylor	334*	1	Aus	Pak	Peshawar	15 Oct 1998
16	Inzamam-ul-Haq	329	1	Pak	NZl	Lahore	01 May 2002
17	ML Hayden	380	1	Aus	Zim	Perth	09 Oct 2003
18	V Sehwag	309	1	Ind	Pak	Multan	28 Mar 2004
19	BC Lara	400*	1	Win	Eng	St John’s	10 Apr 2004
20	CH Gayle	317	2	Win	SAF	St John’s	29 Apr 2005
21	DPMD Jayawardene	374	2	Srl	SAF	Colombo (SSC)	27 Jul 2006
22	V Sehwag	319	2	Ind	SAF	Chennai	26 Mar 2008
23	Younis Khan	313	2	Pak	Srl	Karachi	21 Feb 2009
24	CH Gayle	333	1	Win	Srl	Galle	15 Nov 2010
25	MJ Clarke	329*	2	Aus	Ind	Sydney	03 Jan 2012
26	HM Amla	311*	2	SAF	Eng	The Oval	19 Jul 2012
27	KC Sangakkara	319	1	Srl	Ban	Chittagong	04 Feb 2014
28	BB McCullum	302	3	NZl	Ind	Wellington	14 Feb 2014
29	Azhar Ali	302*	1	Pak	Win	Dubai (DSC)	13 Oct 2016

Azhar Ali of Pakistan scored 302 not out against West Indies in the ongoing test at Dubai-DSC to provide the fourth occasion of a Pakistan batsman scoring 300 plus runs in a test innings. All such occasions are listed below chronologically.

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	Hanif Mohammad	337	3	Pak	Win	Bridgetown	17 Jan 1958
2	Inzamam-ul-Haq	329	1	Pak	NZl	Lahore	01 May 2002
3	Younis Khan	313	2	Pak	Srl	Karachi	21 Feb 2009
4	Azhar Ali	302*	1	Pak	Win	Dubai (DSC)	13 Oct 2016

Azhar Ali of Pakistan scored 302 not out against West Indies in the ongoing test at Dubai-DSC to provide the third  occasion of a batsman scoring 300 plus runs in a test innings against West Indies. All such occasions are listed below chronologically.

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	A Sandham	325	1	Eng	Win	Kingston	03 Apr 1930
2	Hanif Mohammad	337	3	Pak	Win	Bridgetown	17 Jan 1958
3	Azhar Ali	302*	1	Pak	Win	Dubai (DSC)	13 Oct 2016

V Sehwag, DG Bradman. CH Gayle and BC Lara are the four batsmen who have scored 300 plus runs in a test innings on two occasions. Their exploits are detailed below

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	V Sehwag	309	1	Ind	Pak	Multan	28 Mar 2004
2	V Sehwag	319	2	Ind	SAF	Chennai	26 Mar 2008
1	DG Bradman	334	1	Aus	Eng	Leeds	11 Jul 1930
2	DG Bradman	304	2	Aus	Eng	Leeds	20 Jul 1934
1	CH Gayle	317	2	Win	SAF	St John’s	29 Apr 2005
2	CH Gayle	333	1	Win	Srl	Galle	15 Nov 2010
1	BC Lara	375	1	Win	Eng	St John’s	16 Apr 1994
2	BC Lara	400*	1	Win	Eng	St John’s	10 Apr 2004

Azhar Ali of Pakistan scored 302 not out against West Indies in the ongoing test at Dubai-DSC to provide the fifteenth occasion of an opening batsman scoring 300 plus runs in a test innings. All such occasions are listed below chronologically.

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	A Sandham	325	1	Eng	Win	Kingston	03 Apr 1930
2	L Hutton	364	1	Eng	Aus	The Oval	20 Aug 1938
3	Hanif Mohammad	337	3	Pak	Win	Bridgetown	17 Jan 1958
4	RB Simpson	311	1	Aus	Eng	Manchester	23 Jul 1964
5	JH Edrich	310*	1	Eng	NZl	Leeds	08 Jul 1965
6	LG Rowe	302	2	Win	Eng	Bridgetown	06 Mar 1974
7	GA Gooch	333	1	Eng	Ind	Lord’s	26 Jul 1990
8	ST Jayasuriya	340	2	Srl	Ind	Colombo (RPS)	02 Aug 1997
9	MA Taylor	334*	1	Aus	Pak	Peshawar	15 Oct 1998
10	ML Hayden	380	1	Aus	Zim	Perth	09 Oct 2003
11	V Sehwag	309	1	Ind	Pak	Multan	28 Mar 2004
12	CH Gayle	317	2	Win	SAF	St John’s	29 Apr 2005
13	V Sehwag	319	2	Ind	SAF	Chennai	26 Mar 2008
14	CH Gayle	333	1	Win	Srl	Galle	15 Nov 2010
15	Azhar Ali	302*	1	Pak	Win	Dubai (DSC)	13 Oct 2016

Azhar Ali of Pakistan scored 302 not out against West Indies in the ongoing test at Dubai-DSC to provide the second occasion of a Pakistan opening batsman scoring 300 plus runs in a test innings. All such occasions are listed below chronologically. By an interesting coincidence both the Pakistan batsman have chosen West Indies as their opponent while accomplishing the feat. It took 58 years for Azhar Ali to emulate Hanif Mohammad in scoring a triple hundred

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	Hanif Mohammad	337	3	Pak	Win	Bridgetown	17 Jan 1958
2	Azhar Ali	302*	1	Pak	Win	Dubai (DSC)	13 Oct 2016

One more coincidence that is noted with interest is that when these two Pakistan opening batsmen scored triple hundreds, their opening partners were dismissed in nineties. When Hanif Mohammad scored 337, his opening partner Imtiaz Ahmed was dismissed for 91 against West Indies at Bridgetown in Jan 1958. When Azhar Ali scored 302 not out, his opening partner Sami Aslam was dismissed for 90 against West Indies in the ongoing test at Dubai-DSC in Oct 2016