AT Carey of Australia scored 67 against West Indies at Bridgetown on 20 Jul 2021 to provide the 52^nd occasion of a captain scoring a fifty on his captaincy debut in the history of one day internationals. Prior to this India’s S Dhawan had performed such a feat by scoring 86 not out against Sri Lanka at Col-RPS on 18 Jul 2021. All such occasions are tabulated below.

No	Player	Runs	I	Team	Opp	Ground	Start Date
1	IM Chappell	53	1	Aus	Eng	Manchester	24 Aug 1972
2	MH Denness	66	2	Eng	Win	Leeds	05 Sep 1973
3	RB Kanhai	55	1	Win	Eng	Leeds	05 Sep 1973
4	AL Wadekar	67	1	Ind	Eng	Leeds	13 Jul 1974
5	GM Turner	171*	1	NZl	EAF	Birmingham	07 Jun 1975
6	Asif Iqbal	53	2	Pak	Aus	Leeds	07 Jun 1975
7	Majid Khan	60	1	Pak	Win	Birmingham	11 Jun 1975
8	GS Chappell	59	2	Aus	Win	Adelaide	20 Dec 1975
9	DL Murray	51	1	Win	Aus	St John’s	22 Feb 1978
10	DAG Fletcher	69*	1	Zim	Aus	Nottingham	09 Jun 1983
11	AR Border	73	1	Aus	Win	Melbourne	06 Jan 1985
12	RJ Shastri	50	1	Ind	Pak	Indore	27 Jan 1987
13	AJ Lamb	55*	1	Eng	Win	Bridgetown	03 Apr 1990
14	GA Gooch	55	1	Eng	NZl	Leeds	03 May 1990
15	RB Richardson	106*	2	Win	Pak	Sharjah	17 Oct 1991
16	KC Wessels	81*	2	RSA	Aus	Sydney	26 Feb 1992
17	MA Atherton	86	1	Eng	Win	Bridgetown	16 Feb 1994
18	MA Taylor	68*	2	Aus	Srl	Sharjah	14 Apr 1994
19	Aamer Sohail	55	2	Pak	Ind	Bengaluru	09 Mar 1996
20	SR Tendulkar	110	1	Ind	Srl	Col-RPS	28 Aug 1996
21	ST Jayasuriya	102	2	Srl	Zim	Col-SSC	26 Jan 1998
22	Aminul Islam	70	1	Ban	Ind	Mohali	14 May 1998
23	A Jadeja	50	2	Ind	Ken	Bengaluru	20 May 1998
24	N Hussain	85	2	Eng	RSA	Bloemfontein	03 Jan 2000
25	AC Gilchrist	98	2	Aus	Win	Brisbane	14 Jan 2001
26	MS Atapattu	53*	2	Srl	Eng	Col-SSC	27 Mar 2001
27	GJ Whittall	58*	1	Zim	Ind	Bulawayo	27 Jun 2001
28	ME Trescothick	52	1	Eng	Zim	Bulawayo	10 Oct 2001
29	Habibul Bashar	61	1	Ban	Zim	Harare	10 Mar 2004
30	T Taibu	96*	1	Zim	Srl	Bulawayo	20 Apr 2004
31	T Duffin	53	2	Zim	Ken	Bulawayo	25 Feb 2006
32	AJ Strauss	74*	2	Eng	Ind	Jamshedpur	12 Apr 2006
33	RR Watson	80	1	Sco	Pak	Edinburgh	27 Jun 2006
34	IH Romaine	101	1	Ber	Can	Toronto	21 Aug 2006
35	MEK Hussey	109*	1	Aus	Win	Kuala Lumpur	18 Sep 2006
36	Shoaib Malik	79*	2	Pak	Srl	Abu Dhabi	22 May 2007
37	M Jayawardene	65	1	Asia	Afr	Bengaluru	06 Jun 2007
38	Misbah-ul-Haq	70*	2	Pak	Ind	Karachi	02 Jul 2008
39	BB McCullum	71	2	NZl	Ind	Christchurch	08 Mar 2009
40	GM Hamilton	119	1	Sco	Can	Aberdeen	07 Jul 2009
41	LRPL Taylor	70	2	NZl	Aus	Napier	03 Mar 2010
42	TM Dilshan	61	1	Srl	Ind	Bulawayo	30 May 2010
43	EJG Morgan	59	1	Eng	Ire	Dublin	25 Aug 2011
44	AB de Villiers	52	1	RSA	Srl	Paarl	11 Jan 2012
45	GJ Bailey	89	1	Aus	Srl	Melbourne	11 Jan 2013
46	Azhar Ali	72	2	Pak	Ban	Dhaka	17 Apr 2015
47	MN Samuels	63	1	Win	Srl	Col-RPS	04 Nov 2015
48	JC Buttler	63	1	Eng	Ban	Dhaka	07 Oct 2016
49	Mohd Hafeez	72	2	Pak	Aus	Melbourne	15 Jan 2017
50	FDM Karunaratne	77	1	Srl	Sco	Edinburgh	21 May 2019
51	S Dhawan	86*	2	Ind	Srl	Col-RPS	18 Jul 2021
52	AT Carey	67	1	Aus	Win	Bridgetown	20 Jul 2021

The following table lists the captains who have scored nineties and centuries on their captaincy debut in the history of one day internationals. It is noted that only two batsmen have scored nineties while seven captains have scored centuries

No	Player	Runs	I	Team	Opp	Ground	Start Date
1	AC Gilchrist	98	2	Aus	Win	Brisbane	14 Jan 2001
2	T Taibu	96*	1	Zim	Srl	Bulawayo	20 Apr 2004
No	Player	Runs	I	Team	Opp	Ground	Start Date
1	GM Turner	171*	1	NZl	EAF	Birmingham	07 Jun 1975
2	RB Richardson	106*	2	Win	Pak	Sharjah	17 Oct 1991
3	SR Tendulkar	110	1	Ind	Srl	Col-RPS	28 Aug 1996
4	ST Jayasuriya	102	2	Srl	Zim	Col-SSC	26 Jan 1998
5	IH Romaine	101	1	Ber	Can	Toronto	21 Aug 2006
6	MEK Hussey	109*	1	Aus	Win	Kuala Lumpur	18 Sep 2006
7	GM Hamilton	119	1	Sco	Can	Aberdeen	07 Jul 2009

The following table furnishes the team wise list of captains who have scored fifties on their captaincy debut. AT Carey became the eighth Australian captain to perform the feat, while S Dhawan became the fifth Indian captain to score fifty on captaincy debut

No	Player	Runs	I	Team	Opp	Ground	Start Date
1	M Jayawardene	65	1	Asia	Afr	Bengaluru	06 Jun 2007
1	IM Chappell	53	1	Aus	Eng	Manchester	24 Aug 1972
2	GS Chappell	59	2	Aus	Win	Adelaide	20 Dec 1975
3	AR Border	73	1	Aus	Win	Melbourne	06 Jan 1985
4	MA Taylor	68*	2	Aus	Srl	Sharjah	14 Apr 1994
5	AC Gilchrist	98	2	Aus	Win	Brisbane	14 Jan 2001
6	MEK Hussey	109*	1	Aus	Win	Kuala Lumpur	18 Sep 2006
7	GJ Bailey	89	1	Aus	Srl	Melbourne	11 Jan 2013
8	AT Carey	67	1	Aus	Win	Bridgetown	20 Jul 2021
1	Aminul Islam	70	1	Ban	Ind	Mohali	14 May 1998
2	Habibul Bashar	61	1	Ban	Zim	Harare	10 Mar 2004
1	IH Romaine	101	1	Ber	Can	Toronto	21 Aug 2006
1	MH Denness	66	2	Eng	Win	Leeds	05 Sep 1973
2	AJ Lamb	55*	1	Eng	Win	Bridgetown	03 Apr 1990
3	GA Gooch	55	1	Eng	NZl	Leeds	03 May 1990
4	MA Atherton	86	1	Eng	Win	Bridgetown	16 Feb 1994
5	N Hussain	85	2	Eng	RSA	Bloemfontein	03 Jan 2000
6	ME Trescothick	52	1	Eng	Zim	Bulawayo	10 Oct 2001
7	AJ Strauss	74*	2	Eng	Ind	Jamshedpur	12 Apr 2006
8	EJG Morgan	59	1	Eng	Ire	Dublin	25 Aug 2011
9	JC Buttler	63	1	Eng	Ban	Dhaka	07 Oct 2016
1	AL Wadekar	67	1	Ind	Eng	Leeds	103 Jul 1974
2	RJ Shastri	50	1	Ind	Pak	Indore	27 Jan 1987
3	SR Tendulkar	110	1	Ind	Srl	Col-RPS	28 Aug 1996
4	A Jadeja	50	2	Ind	Ken	Bengaluru	20 May 1998
5	S Dhawan	86*	2	Ind	Srl	Col-RPS	18 Jul 2021
1	GM Turner	171*	1	NZl	EAF	Birmingham	07 Jun 1975
2	BB McCullum	71	2	NZl	Ind	Christchurch	08 Mar 2009
3	LRPL Taylor	70	2	NZl	Aus	Napier	03 Mar 2010
1	Asif Iqbal	53	2	Pak	Aus	Leeds	07 Jun 1975
2	Majid Khan	60	1	Pak	Win	Birmingham	11 Jun 1975
3	Aamer Sohail	55	2	Pak	Ind	Bengaluru	09 Mar 1996
4	Shoaib Malik	79*	2	Pak	Srl	Abu Dhabi	22 May 2007
5	Misbah-ul-Haq	70*	2	Pak	Ind	Karachi	02 Jul 2008
6	Azhar Ali	72	2	Pak	Ban	Dhaka	17 Apr 2015
7	Mohd Hafeez	72	2	Pak	Aus	Melbourne	15 Jan 2017
1	RR Watson	80	1	Sco	Pak	Edinburgh	27 Jun 2006
2	GM Hamilton	119	1	Sco	Can	Aberdeen	07 Jul 2009
1	KC Wessels	81*	2	RSA	Aus	Sydney	26 Feb 1992
2	AB de Villiers	52	1	RSA	Srl	Paarl	11 Jan 2012
1	ST Jayasuriya	102	2	Srl	Zim	Col-SSC	26 Jan 1998
2	MS Atapattu	53*	2	Srl	Eng	Col-SSC	27 Mar 2001
3	TM Dilshan	61	1	Srl	Ind	Bulawayo	30 May 2010
4	FDM Karunaratne	77	1	Srl	Sco	Edinburgh	21 May 2019
1	RB Kanhai	55	1	Win	Eng	Leeds	05 Sep 1973
2	DL Murray	51	1	Win	Aus	St John’s	22 Feb 1978
3	RB Richardson	106*	2	Win	Pak	Sharjah	17 Oct 1991
4	MN Samuels	63	1	Win	Srl	Col-RPS	04 Nov 2015
1	DAG Fletcher	69*	1	Zim	Aus	Nottingham	09 Jun 1983
2	GJ Whittall	58*	1	Zim	Ind	Bulawayo	27 Jun 2001
3	T Taibu	96*	1	Zim	Srl	Bulawayo	20 Apr 2004
4	T Duffin	53	2	Zim	Ken	Bulawayo	25 Feb 2006