Q de Kock’s 52 against India at Mohali T20I on 18.09.19 was in a losing cause to provide the 33rd occasion of a wicketkeeper batsman’s fifty going in vain in the history of Twenty20 Internationals. All such occasions are tabulated below

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	TM Dilshan	61	1	Srl	Ind	Col-RPS	10 Feb 2009
2	BB McCullum	61	2	NZl	Aus	Sydney	15 Feb 2009
3	KC Sangakkara	64*	1	Srl	Pak	Lord’s	21 Jun 2009
4	KC Sangakkara	69	2	Srl	NZl	Col-RPS	04 Sep 2009
5	KC Sangakkara	59	1	Srl	Ind	Mohali	12 Dec 2009
6	NJ O’Brien	50	2	Ire	Can	Col-SSC	03 Feb 2010
7	A Bagai	53	1	Can	Afg	Col-SSC	04 Feb 2010
8	Kamran Akmal	64	2	Pak	Aus	Melbourne	05 Feb 2010
9	Kamran Akmal	50	1	Pak	Aus	Gros Islet	14 May 2010
10	Mohd Shahzad	77	1	Afg	Ire	Dubai (DSC	24 Mar 2012
11	JC Buttler	54	2	Eng	NZl	Hamilton	12 Feb 2013
12	KC Sangakkara	59*	2	Srl	RSA	Col-RPS	02 Aug 2013
13	Mushfiqur Rahim	50	2	Ban	NZl	Dhaka	06 Nov 2013
14	A Bagai	67*	2	Can	Ire	Abu Dhabi	16 Nov 2013
15	W Barresi	70*	2	Net	Sco	ICCA Dubai	22 Nov 2013
16	D Ramdin	55*	1	Win	NZl	Wellington	15 Jan 2014
17	JC Buttler	67	1	Eng	Win	Bridgetown	11 Mar 2014
18	BRM Taylor	59	1	Zim	Ire	Sylhet	17 Mar 2014
19	ADS Fletcher	57	2	Win	Srl	Pallekele	09 Nov 2015
20	JC Buttler	54	1	Eng	RSA	Johannesburg	21 Feb 2016
21	Sarfaraz Ahmed	58*	1	Pak	Ban	Dhaka	02 Mar 2016
22	JJ Atkinson	53	2	HKF	Zim	Nagpur	08 Mar 2016
23	Q de Kock	52	1	RSA	Eng	Mumbai	18 Mar 2016
24	GC Wilson	59	2	Ire	Afg	Greater Noida	12 Mar 2017
25	Mushfiqur Rahim	66*	1	Ban	Srl	Dhaka	15 Feb 2018
26	MS Dhoni	52*	1	Ind	RSA	Centurion	21 Feb 2018
27	Mushfiqur Rahim	72*	2	Ban	Ind	Col-RPS	14 Mar 2018
28	MDKJ Perera	61	1	Srl	Ban	Col-RPS	16 Mar 2018
29	JC Buttler	69	1	Eng	Ind	Manchester	03 Jul 2018
30	Imran Ali Butt	53	1	Bah	Kuw	Al Amerat	23 Jan 2019
31	TP Visee	78	1	Net	Ire	Al Amerat	17 Feb 2019
32	K Motlhanka	59	2	Bots	Nam	Windhoek	20 Aug 2019
33	Q de Kock	52	1	RSA	Ind	Mohali	18 Sep 2019

It also provides the fifth occasion of a wicketkeeper batsman’s fifty going in vain against India in the history of Twenty20 Internationals. All such occasions are tabulated below

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	TM Dilshan	61	1	Srl	Ind	Col-RPS	10 Feb 2009
2	KC Sangakkara	59	1	Srl	Ind	Mohali	12 Dec 2009
3	Mushfiqur Rahim	72*	2	Ban	Ind	Col-RPS	14 Mar 2018
4	JC Buttler	69	1	Eng	Ind	Manchester	03 Jul 2018
5	Q de Kock	52	1	RSA	Ind	Mohali	18 Sep 2019

KC Sangakkara {04}. JC Buttler {04}. Mushfiqur Rahim {03}, A Bagai {02}, Kamran Akmal {02} and Q de Kock {02} are the six wicket keeper batsmen to witness their fifties going in vain on two or more occasions. The last named Q de Kock is the latest entrant into this list.

No	No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	1	KC Sangakkara	64*	1	Srl	Pak	Lord’s	21 Jun 2009
	2	KC Sangakkara	69	2	Srl	NZl	Col-RPS	04 Sep 2009
	3	KC Sangakkara	59	1	Srl	Ind	Mohali	12 Dec 2009
	4	KC Sangakkara	59*	2	Srl	RSA	Col-RPS	02 Aug 2013
2	1	JC Buttler	54	2	Eng	NZl	Hamilton	12 Feb 2013
	2	JC Buttler	67	1	Eng	Win	Bridgetown	11 Mar 2014
	3	JC Buttler	54	1	Eng	RSA	Johannesburg	21 Feb 2016
	4	JC Buttler	69	1	Eng	Ind	Manchester	03 Jul 2018
3	1	Mushfiqur Rahim	50	2	Ban	NZl	Dhaka	06 Nov 2013
	2	Mushfiqur Rahim	66*	1	Ban	Srl	Dhaka	15 Feb 2018
	3	Mushfiqur Rahim	72*	2	Ban	Ind	Col-RPS	14 Mar 2018
4	1	A Bagai	53	1	Can	Afg	Col-SSC	04 Feb 2010
	2	A Bagai	67*	2	Can	Ire	Abu Dhabi	16 Nov 2013
5	1	Kamran Akmal	64	2	Pak	Aus	Melbourne	05 Feb 2010
	2	Kamran Akmal	50	1	Pak	Aus	Gros Islet	14 May 2010
6	1	Q de Kock	52	1	RSA	Eng	Mumbai	18 Mar 2016
	2	Q de Kock	52	1	RSA	Ind	Mohali	18 Sep 2019