Call Busts and Reverse Busts: CQ WW 2018

This is the latest in a series of posts on (callsign) busts and reverse busts in the CQ WW contests. These posts are based on the various public CQ WW logs (cq-ww-2005--2018-augmented.xz; see here for details of the augmented format).

Prior posts in the series on busts and reverse busts in CQ WW:

• 2005
• 2006 
• 2007
• 2008 
• 2009 
• 2010
• 2011 
• 2012
• 2013 
• 2014
• 2015 
• 2016
• 2017 

In this post, we include only verified QSOs; that is, QSOs for which both parties submitted a log.

First, the tables for the CQ WW SSB 2018:

2018 SSB -- Most Busts
Position	Call	QSOs	Busts	% Busts
1	V26B	6,160	166	2.7
2	CN3A	9,457	159	1.7
3	D4C	8,295	155	1.9
4	LZ9W	7,558	142	1.9
5	TM0T	4,189	136	3.2
6	A44A	3,944	135	3.4
7	ZF1A	6,423	115	1.8
8	OK5Z	3,634	112	3.1
9	EF8R	8,357	107	1.3
10	OT5A	5,021	106	2.1

2018 SSB -- Most Reverse Busts
Position	Call	QSOs	Reverse Busts	% Reverse Busts
1	OG60F	4,258	486	11.4
2	HC0E	1,873	274	14.6
3	TM3R	3,605	233	6.5
4	DF0HQ	6,857	195	2.8
5	KL7RA	4,622	157	3.4
6	IK2YCW	4,021	150	3.7
7	EF8R	8,357	148	1.8
8	JA3YBK	3,509	140	4.0
9	JE2YRB	1,362	140	10.3
10	ED3M	3,152	131	4.2

2018 SSB -- Highest Percentage of Busts (≥100 QSOs)
Position	Call	QSOs	% Busts
1	YB2BNN	136	16.9
2	SP9KB	189	14.8
3	UB3AQA	129	13.2
4	IU8GYT	210	12.4
5	YC1HLT	108	12.0
6	KE0KOT	101	11.9
7	R7AC	112	11.6
8	W7UPF	137	10.9
9	TA3PZ	152	10.5
10	9W6VAT	143	10.5

2018 SSB -- Highest Percentage of Reverse Busts (≥100 QSOs)
Position	Call	QSOs	% Reverse Busts
1	HC0E	1,873	14.6
2	OG60F	4,258	11.4
3	BY4QA	437	11.2
4	9M2SDX	135	11.1
5	BV2A/3	443	11.1
6	W6MOB	101	10.9
7	JE2YRB	1,362	10.3
8	IK3SSJ	207	9.7
9	9M6GOH	288	9.0
10	IK3XTY	123	8.9

Now the tables for the 2018 CW data:

2018 CW -- Most Busts
Position	Call	QSOs	Busts	% Busts
1	TK0C	10,328	175	1.7
2	OZ5E	6,144	149	2.4
3	D41CV	7,456	144	1.9
4	CN3A	11,670	141	1.2
5	LZ9W	9,958	132	1.3
6	F6KOP	3,738	129	3.5
7	NP2P	3,369	120	3.6
8	RW0A	6,524	116	1.8
9	G3V	6,593	113	1.7
10	RM9A	8,834	112	1.3

2018 CW -- Most Reverse Busts
Position	Call	QSOs	Reverse Busts	% Reverse Busts
1	PE75W	1,408	412	29.3
2	ES9C	9,696	322	3.3
3	JS3CTQ	2,455	320	13.0
4	CN3A	11,670	278	2.4
5	DF0HQ	8,658	274	3.2
6	EF8R	12,115	271	2.2
7	OG60F	5,561	232	4.2
8	RM9A	8,834	213	2.4
9	UA4S	5,283	208	3.9
10	CR3W	8,586	173	2.0

2018 CW -- Highest Percentage of Busts (≥100 QSOs)
Position	Call	QSOs	% Busts
1	KD5QHV	116	23.3
2	YO7LYM	250	18.8
3	W3ICM	107	18.7
4	OH1LAR	156	18.6
5	PA0SKP	204	18.1
6	K4KAY	235	17.9
7	W4PH	198	17.7
8	LA6M	225	17.0
9	GD4EIP	453	16.8
10	VE5WI	180	16.7

2018 CW -- Highest Percentage of Reverse Busts (≥100 QSOs)
Position	Call	QSOs	% Reverse Busts
1	PE75W	1,408	29.3
2	YU1LG	167	19.2
3	DK3HM	294	15.6
4	K3HW	414	14.7
5	PY2LPM	103	14.6
6	OG55W	463	14.0
7	JS3CTQ	2,455	13.0
8	SA0BXV	157	12.7
9	JA8HBO	103	12.6
10	G0AZS	188	12.2

Now we look at the tables that integrate ten years' data.

For SSB:

2009 to 2018 SSB -- Most Busts
Position	Call	QSOs	Busts	% Busts
1	LZ9W	83,740	1,456	1.7
2	OT5A	69,414	1,363	2.0
3	PJ2T	70,851	1,324	1.9
4	CN3A	83,700	1,316	1.6
5	A73A	62,374	1,260	2.0
6	HG1S	42,980	868	2.0
7	EF8R	50,246	850	1.7
8	V26B	56,636	843	1.5
9	JA7YRR	28,832	821	2.8
10	HG7T	54,081	785	1.5

2009 to 2018 SSB -- Most Reverse Busts
Position	Call	QSOs	Reverse Busts	% Reverse Busts
1	DF0HQ	79,704	2,301	2.9
2	JA3YBK	41,284	1,311	3.2
3	K3LR	69,728	1,078	1.5
4	CN2R	59,585	1,027	1.7
5	WE3C	36,245	976	2.7
6	CN3A	83,700	891	1.1
7	HG1S	42,980	884	2.1
8	S52ZW	32,848	847	2.6
9	W3LPL	53,037	800	1.5
10	HK1NA	40,363	788	2.0

2009 to 2018 SSB -- Highest Percentage of Busts (≥500 QSOs)
Position	Call	QSOs	% Busts
1	PV8ADI	858	16.2
2	K2JMY	2,062	14.8
3	EA7JQT	572	12.4
4	EA1HTF	1,244	11.9
5	PU1MMZ	544	11.4
6	K8TS	679	10.9
7	PU2TRX	868	10.8
8	YB9KA	557	10.1
9	HC2GF	936	10.0
10	E20WXA	594	9.9

2009 to 2018 SSB -- Highest Percentage of Reverse Busts (≥500 QSOs)
Position	Call	QSOs	% Reverse Busts
1	CW90A	1,370	30.9
2	BA8AG	752	16.4
3	BW2/KU1CW	940	12.3
4	OG60F	4,258	11.4
5	ZP6DYA	1,226	11.3
6	V84SCQ	806	10.5
7	LU9DDJ	701	10.4
8	JE2YRB	1,362	10.3
9	BV55D	919	10.2
10	JG3SVP	1,270	10.1

 And for CW:

2009 to 2018 CW -- Most Busts
Position	Call	QSOs	Busts	% Busts
1	PJ2T	90,264	1,260	1.4
2	LZ9W	95,211	1,193	1.3
3	PV8ADI	8,127	1,177	14.5
4	PI4CC	53,794	1,056	2.0
5	OZ5E	30,550	824	2.7
6	9A1A	98,218	809	0.8
7	PJ4A	69,325	806	1.2
8	HG1S	35,367	801	2.3
9	D4C	56,710	788	1.4
10	RW0A	47,270	768	1.6

2009 to 2018 CW -- Most Reverse Busts
Position	Call	QSOs	Reverse Busts	% Reverse Busts
1	JS3CTQ	24,173	3,139	13.0
2	DF0HQ	86,422	3,073	3.6
3	ES9C	59,162	1,834	3.1
4	W2FU	56,827	1,456	2.6
5	K3LR	74,177	1,408	1.9
6	DR1A	49,284	1,290	2.6
7	IR4X	44,952	1,274	2.8
8	NR4M	54,508	1,184	2.2
9	HG7T	58,224	1,178	2.0
10	W0AIH	29,076	1,151	4.0

2009 to 2018 CW -- Highest Percentage of Busts (≥500 QSOs)
Position	Call	QSOs	% Busts
1	W2UDT	911	19.8
2	BD3MV	1,005	19.2
3	YO7LYM	1,711	17.0
4	JA3AHY	554	16.6
5	DJ5UZ	686	16.5
6	WP3Y	570	16.3
7	AE3D	1,016	15.8
8	YU1NIM	619	15.8
9	AD7XG	1,178	15.4
10	SM5BJT	615	14.6

2009 to 2018 CW -- Highest Percentage of Reverse Busts (≥500 QSOs)
Position	Call	QSOs	% Reverse Busts
1	G3RWF	943	99.9
2	RZ3VO	1,792	49.9
3	YT65A	1,149	37.2
4	5K0A	1,853	32.1
5	OG55W	3,032	29.4
6	PE75W	1,408	29.3
7	DP65HSC	516	16.9
8	5J1E	1,523	15.6
9	SB0A	1,102	15.5
10	YP0HQ	1,787	14.0

NB: In tables of reverse busts, one sometimes finds what seems like an unreasonable number of reverse busts (as, in this table, for G3RWF). This is generally caused by a discrepancy between the call actually sent by the listed station and the one recorded as being sent in at least some QSOs in the log, although it can, of course, be due to an unusual callsign structure or poor signal quality.