Reverse NILs in CQ WW: 2020; 2011 to 2020

The basic notion of reverse NILs (rNILs; or, I suppose, RNILs) is described here, along with a description of a simple script for calculating rNILs for CQ WW contests and the result of applying that code to the contests for 2005. See also the comments at the end of that post. I would be delighted if anyone who spots any errors in the script would inform me.

We can also look at the results for periods of ten years at a time; the only difference in the way that these decadal tables are calculated is that the minimum number of rQSOs is raised from 50 to 250 for tables pertaining to all QSOs and from 25 to 125 for those pertaining to intra-W QSOs. (That is, the value of the variable MIN_QSOs is changed from 50 to 250.)

Here are the results for 2020 and for the period from 2011 to 2020. As usual, I refrain (with, it must be admitted, ever-increasing difficulty) from making some pointed comments about these tables. I have also added some additional columns to the W tables; I trust that these are self-explanatory.

2020 SSB:

Callsign	Total rQSOs	Total rNILs
3Z1K	1509	662
DX1CC	558	230
M0MNM	228	227
HC2AO	2830	219
US5AT	258	218
ZF1A	5260	145
YT5A	9571	135
LZ9W	9992	130
XE1CQ	1961	130
EA8RM	6984	122

Callsign	Total rQSOs	Total rNILs	% rNILs
M0MNM	228	227	99.6
M6RVA	51	47	92.2
US5AT	258	218	84.5
F5IND	113	75	66.4
W6BRY	110	71	64.5
KL7EX	61	39	63.9
HB9IQB	99	62	62.6
JF2WXS	92	48	52.2
HB3XUC	241	116	48.1
CS7AMN	133	60	45.1

Callsign	Total rQSOs with Ws	rNILs against Ws	Total rQSOs with non-Ws	rNILs against non-Ws
KV0Q	113	72	640	10
N7DD	65	43	625	8
W6KW	39	38	311	5
KV2K	43	34	1628	27
W3KL	33	33	1066	8
K3EST	260	23	1831	27
NY6DX	31	22	449	14
K5TR	452	16	2120	39
K7ZS	259	12	1065	13
N2IC	90	12	1134	10

Callsign	Total rQSOs with Ws	Total rNILs against Ws	% rNILs against Ws	Total rQSOs with non-Ws	rNILs against non-Ws	% rNILs against non-Ws
W3KL	33	33	100.0	1066	8	0.8
W6KW	39	38	97.4	311	5	1.6
KV2K	43	34	79.1	1628	27	1.7
NY6DX	31	22	71.0	449	14	3.1
N7DD	65	43	66.2	625	8	1.3
KV0Q	113	72	63.7	640	10	1.6
N1PGA	25	7	28.0	1104	6	0.5
N1LN	25	5	20.0	672	1	0.1
N7TU	77	11	14.3	666	12	1.8
N2IC	90	12	13.3	1134	10	0.9

2020 CW:

Callsign	Total rQSOs	Total rNILs
PI4DX	928	813
LY2ZO	2912	807
YU7XX	3303	590
DL9DBZ	405	356
EA6FO	7178	352
OK1TC	684	350
SP5SR	352	350
RU1A	6748	298
S57T	304	295
K3UA	1792	282

Callsign	Total rQSOs	Total rNILs	% rNILs
SP5SR	352	350	99.4
A65BB	133	131	98.5
S57T	304	295	97.0
JM2LEI	184	173	94.0
LZ3BB	308	280	90.9
DL9DBZ	405	356	87.9
PI4DX	928	813	87.6
W1OHM	70	61	87.1
N0IJ	206	167	81.1
JA7AKH	129	101	78.3

Callsign	Total rQSOs with Ws	rNILs against Ws	Total rQSOs with non-Ws	rNILs against non-Ws
N9EZ	113	69	86	48
K3UA	103	34	1689	248
KV2K	48	22	2206	41
NR5M	77	18	1384	11
W5ZN	54	17	1482	19
KC1XX	445	14	7745	115
K1TTT	301	14	5391	99
N7DD	26	14	909	17
NE3F	30	14	1462	26
K0RF	339	13	3501	38

Callsign	Total rQSOs with Ws	Total rNILs against Ws	% rNILs against Ws	Total rQSOs with non-Ws	rNILs against non-Ws	% rNILs against non-Ws
N9EZ	113	69	61.1	86	48	55.8
N7DD	26	14	53.8	909	17	1.9
NE3F	30	14	46.7	1462	26	1.8
KV2K	48	22	45.8	2206	41	1.9
K3UA	103	34	33.0	1689	248	14.7
W5ZN	54	17	31.5	1482	19	1.3
NA3M	26	8	30.8	2141	15	0.7
KB1W	25	7	28.0	1128	21	1.9
NR5M	77	18	23.4	1384	11	0.8
W1WEF	49	11	22.4	2222	24	1.1

As I write this, the results for the 2020 contests are yet to be announced. I shall make a prediction based on the past many years of data that none of the people in the final table of each group whose rNIL rate against Ws exceeds 50% will be disqualified for unsportsmanlike conduct. In fact, I predict that none of them will even be investigated in order to determine the reason for what appears on its face to be an excessive rNIL rate against Ws.

(I do note that rNILs do occur naturally when one of the two operators is a bit sloppy, and a rate that is higher against Ws than against non-Ws could [possibly] be explained as a natural occurrence: for example, the running W operator hears two callers, one W and one DX, and the running station would normally go back to and work the DX station if he can, while the W caller might sloppily believe that he was being worked. What is concerning, though, and should reasonably be a cause for further investigation, is when the rNIL rate against Ws greatly exceeds the rate against non-Ws.)

2011 to 2020 SSB:

Callsign	Total rQSOs	Total rNILs
EA2DMH	4192	1636
CN3A	82248	1573
JR4GPA	3423	1513
OT5A	65066	1400
LZ9W	89914	1385
OK1KZ	1814	1307
A73A	63222	1284
PJ2T	67287	1224
JE5JHZ	1660	1184
OG5B	1173	1171

Callsign	Total rQSOs	Total rNILs	% rNILs
OG5B	1173	1171	99.8
YL2014W	1105	1098	99.4
VU2SWS	261	259	99.2
YY4HAH	493	489	99.2
LY1G	666	659	98.9
CU4AT	274	270	98.5
KP4ROS	664	653	98.3
ZZ5Z	297	292	98.3
PY2ASS	312	296	94.9
YU1IZ	283	266	94.0

Callsign	Total rQSOs with Ws	rNILs against Ws	Total rQSOs with non-Ws	rNILs against non-Ws
KV0Q	733	382	8205	135
N7DD	609	373	9493	184
N9RV	785	138	11925	130
N2IC	730	102	13810	101
K3LR	4471	96	62913	827
W3LPL	2786	84	49945	737
NR5M	642	79	8502	120
K5TR	2355	68	20873	366
W4QNW	148	60	898	23
W0AIH	1468	53	18423	594

Callsign	Total rQSOs with Ws	Total rNILs against Ws	% rNILs against Ws	Total rQSOs with non-Ws	rNILs against non-Ws	% rNILs against non-Ws
N7DD	609	373	61.2	9493	184	1.9
KV0Q	733	382	52.1	8205	135	1.6
W4QNW	148	60	40.5	898	23	2.6
N9RV	785	138	17.6	11925	130	1.1
N2IC	730	102	14.0	13810	101	0.7
AB4B	171	22	12.9	6613	97	1.5
N3AD	177	22	12.4	11580	169	1.5
NR5M	642	79	12.3	8502	120	1.4
WA2HIP	145	17	11.7	935	39	4.2
K3UL	174	18	10.3	8721	155	1.8

CW 2011 to 2020:

Callsign	Total rQSOs	Total rNILs
OK1KZ	2119	1735
LZ9W	103845	1436
JR4GPA	6542	1361
PJ2T	88647	1348
D4C	59818	1256
9A1A	97854	1243
UA1CEC	4539	1172
PI4DX	18696	1100
PJ4A	67987	1096
P33W	79131	1095

Callsign	Total rQSOs	Total rNILs	% rNILs
RA3ATE	908	903	99.4
I1XSG	534	527	98.7
OK1KZ	2119	1735	81.9
WB0CFF	432	313	72.5
UA4CNZ	788	562	71.3
RA9KY	797	461	57.8
AB3UM	276	153	55.4
4S7KM	378	209	55.3
XF1IM	702	385	54.8
JA3AA	338	170	50.3

Callsign	Total rQSOs with Ws	rNILs against Ws	Total rQSOs with non-Ws	rNILs against non-Ws
NR5M	1615	247	22774	211
N7DD	302	178	7957	218
N9RV	637	131	18040	217
K0RF	2227	123	33855	454
KV2K	331	97	18376	286
N0NI	1061	79	28321	229
W3LPL	2970	75	72355	650
N7AT	1630	69	26173	216
NE3F	245	65	17325	297
NR4M	1800	64	49835	522

Callsign	Total rQSOs with Ws	Total rNILs against Ws	% rNILs against Ws	Total rQSOs with non-Ws	rNILs against non-Ws	% rNILs against non-Ws
N7DD	302	178	58.9	7957	218	2.7
W1IE	135	63	46.7	2990	126	4.2
KV2K	331	97	29.3	18376	286	1.6
KV0Q	224	60	26.8	2679	77	2.9
NE3F	245	65	26.5	17325	297	1.7
KZ5D	198	51	25.8	8850	109	1.2
W0ZA	125	28	22.4	4680	33	0.7
N9RV	637	131	20.6	18040	217	1.2
NR5M	1615	247	15.3	22774	211	0.9
NA3M	142	21	14.8	11028	93	0.8