Sam Deacon

Region	WCA ID	Gender	Competitions	Completed Solves
United States	2013DEAC01	Male	37	1028

Current Personal Records

Event	NR	CR	WR	Single	Average	WR	CR	NR
3x3x3 Cube	722	906	3328	7.01	8.26	2110	606	500
2x2x2 Cube	968	1221	4556	1.63	3.09	4655	1294	1033
4x4x4 Cube	742	997	4104	33.78	39.53	4337	1055	802
5x5x5 Cube	2006	2727	10457	1:31.28	1:44.00	11248	2971	2194
6x6x6 Cube	2695	3565	11923	4:31.54
7x7x7 Cube	1953	2610	8996	6:10.80
3x3x3 Blindfolded	1212	1603	7076	3:37.37
3x3x3 One-Handed	258	319	1084	10.87	14.14	1211	322	257
Clock	1831	2260	7541	10.28	11.35	6199	1876	1530
Megaminx	5134	6973	23127	2:54.79
Pyraminx	2662	3432	13343	4.68	6.06	7489	1875	1466
Skewb	9855	12413	39355	10.43	12.10	27857	8391	6619
Square-1	4736	5925	18020	50.67	1:32.70	17222	5638	4470

Medal Collection

Gold	Silver	Bronze
1	0	1

Results
Map

Competition	Round	Place	Single	Average	Solves
3x3x3 Cube
River Hill Fall 2025	Final	7	9.05	9.56	9.05	9.70	9.86	9.12	13.20
	Second round	4	7.98	8.36	8.01	7.98	8.85	13.79	8.22
	First round	13	8.05	9.25	11.48	9.28	10.01	8.05	8.45
Slow N Steady UMD Fall 2025	Final	8	7.75	9.38	12.82	8.57	7.75	8.98	10.59
	Second round	11	7.83	9.23	10.30	8.48	8.91	10.65	7.83
	First round	14	8.38	9.27	10.56	9.54	9.27	8.38	9.01
CubingUSA Mid-Atlantic Championship 2025	Semi Final	58	8.15	10.45	11.75	11.69	9.68	9.97	8.15
	Second round	20	7.31	8.33	8.48	9.63	7.31	8.44	8.08
	First round	29	7.79	8.81	10.23	7.79	8.64	8.88	8.90
More Cubing with the Cougars WV 2025	First round	10	7.42	9.11	8.83	7.42	9.11	9.40	9.97
Rubik's WCA World Championship 2025	Second round	449	8.01	9.38	8.88	8.01	8.37	12.07	10.90
	First round	475	7.43	9.31	7.43	8.03	12.69	8.84	11.07
Front Royal Spring 2025	Final	15	8.77	10.70	11.12	12.26	10.40	8.77	10.58
	Second round	4	7.25	8.49	7.25	8.98	8.46	8.04	9.91
	First round	5	7.10	8.87	9.42	9.42	7.10	8.47	8.71
Slow N Steady UMD Spring 2025	Final	4	7.55	8.26	7.63	9.38	7.55	11.78	7.77
	Second round	8	8.10	8.50	8.51	12.36	8.80	8.10	8.18
	First round	12	9.00	9.57	11.78	9.09	9.74	9.00	9.87
Cubing with the Cougars WV 2025	Final	16	7.99	9.70	7.99	9.85	16.11	10.19	9.05
	Second round	5	7.38	8.57	8.96	7.42	7.38	10.11	9.33
	First round	10	7.79	9.56	10.93	8.94	10.53	9.21	7.79
Bethesda Winter Wonderland 2025	Final	4	8.51	9.26	9.64	8.93	8.51	9.22	10.53
	Second round	3	7.88	8.72	9.43	8.39	9.96	8.34	7.88
	First round	3	8.03	8.87	10.58	8.04	8.03	9.05	9.51
River Hill Fall 2024	Final	11	8.64	9.73	9.45	8.64	10.88	8.86	14.62
	Second round	9	7.19	8.89	7.19	8.65	9.03	9.37	8.98
	First round	8	7.01	8.83	7.01	8.95	8.15	11.11	9.39
UMBC Fall 2024	Final	13	8.25	9.12	11.04	9.00	8.25	9.27	9.09
	Second round	19	8.51	10.34	13.85	10.40	10.10	8.51	10.51
	First round	7	8.77	8.89	8.77	8.80	8.92	9.83	8.94
Gaithersburg Back to School 2024	Final	15	7.47	9.33	11.48	7.47	11.31	8.10	8.59
	Second round	9	8.00	8.48	8.00	9.68	8.40	8.29	8.76
	First round	14	8.54	9.60	11.14	10.33	9.27	8.54	9.20
Bethesda Summer Showdown 2024	Final	10	8.04	9.28	9.93	11.23	9.25	8.65	8.04
	Second round	8	8.79	9.41	9.65	10.11	8.79	8.90	9.69
	First round	10	7.80	9.31	11.18	8.38	9.90	9.66	7.80
Slow N Steady Spring 2024	Final	18	7.50	9.85	11.01	8.61	9.92	12.03	7.50
	Second round	8	7.83	8.89	9.00	8.29	7.83	9.38	10.68
	First round	13	7.73	9.62	9.50	9.38	7.73	10.91	9.97
Cubing in the Lion's Den 2024	Second round	19	8.31	10.52	8.31	12.49	11.31	8.88	11.36
	First round	11	8.92	9.30	9.07	9.25	9.57	8.92	11.86
Slow N Steady Fall 2023	Second round	23	8.77	10.11	9.23	11.30	8.77	12.66	9.79
	First round	35	9.69	10.87	9.69	13.39	10.41	12.24	9.96
Berwick Fall 2023	Final	7	8.85	10.45	10.44	10.87	8.85	12.75	10.04
	First round	6	8.89	9.95	10.88	9.79	8.89	9.82	10.24
Warwick Cube Day 2023	Final	9	8.96	9.79	9.25	8.96	11.21	9.59	10.54
	Second round	8	7.96	9.22	12.16	8.70	10.04	8.92	7.96
	First round	11	9.50	10.86	12.19	10.91	10.65	11.02	9.50
Slow N Steady Spring 2023	Second round	29	8.25	10.59	14.22	11.07	10.96	8.25	9.73
	First round	27	8.34	10.06	11.08	10.43	10.94	8.80	8.34
River Hill Fall 2022	Final	15	8.17	10.35	8.48	8.17	12.29	12.46	10.29
	Second round	16	9.17	9.60	10.29	9.17	9.72	9.81	9.28
	First round	18	8.30	9.91	10.43	10.16	12.37	8.30	9.13
Slow N Steady Fall 2022	Second round	37	9.74	10.71	11.39	9.74	11.47	10.70	10.04
	First round	36	8.99	10.82	8.99	9.94	10.72	12.15	11.80
Slow N Steady Winter 2020	Second round	26	8.72	11.01	11.61	10.09	11.34	13.36	8.72
	First round	18	8.82	10.08	8.95	8.82	10.80	10.50	13.08
Slow N Steady Summer 2019	First round	31	10.11	11.42	13.28	11.37	10.11	10.16	12.72
Slow N Steady Summer 2018	Second round	23	9.73	10.91	11.02	10.81	9.73	21.16	10.91
	First round	31	9.02	11.79	9.02	12.65	12.38	11.50	11.48
Maryland 2017	Second round	47	10.83	12.26	11.51	12.79	13.43	10.83	12.49
	First round	41	10.92	11.96	12.28	11.63	10.92	12.65	11.98
Severna Park Summer 2017	Semi Final	27	10.26	12.56	11.99	12.45	15.66	10.26	13.25
	Second round	32	11.75	13.18	13.62	13.60	11.75	12.86	13.09
	First round	22	10.21	11.75	12.00	12.81	10.21	10.45	16.93
Slow N Steady Spring 2017	Semi Final	23	11.55	12.45	12.19	12.15	11.55	13.26	13.00
	Second round	24	10.75	12.22	11.80	10.75	13.23	16.37	11.64
	First round	29	10.20	12.57	10.59	13.66	10.20	13.45	15.52
Virginia Open Winter 2017	Second round	18	10.20	12.66	14.05	11.81	13.69	12.48	10.20
	First round	11	9.59	11.74	12.51	9.59	10.18	14.06	12.52
Rockville Winter 2017	Second round	19	10.39	12.19	11.68	12.94	11.94	13.34	10.39
	First round	27	10.54	13.15	11.95	13.83	10.54	13.66	14.55
TJHSST Fall 2016	Semi Final	18	12.85	13.81	13.21	14.71	13.52	12.85	15.56
	Second round	15	11.82	12.42	12.92	12.29	11.82	12.06	15.97
	First round	26	12.25	14.33	13.76	DNF	15.24	12.25	13.99
Virginia Open Spring 2015	Final	17	12.58	14.14	12.58	13.36	15.21	DNF	13.85
	Second round	14	11.05	12.43	13.67	13.11	13.13	11.05	11.05
	First round	21	11.79	14.27	16.68	15.11	11.79	13.18	14.53
Slow n Steady Fall 2014	Second round	20	11.04	14.69	14.49	11.04	14.82	14.75	DNF
	First round	18	11.97	14.56	15.39	13.71	14.58	16.28	11.97
Virginia Open Fall 2014	Second round	17	10.92	13.92	14.45	14.31	10.92	13.00	14.51
	First round	15	12.34	14.02	13.37	13.08	15.61	16.42	12.34
US Nationals 2014	First round	159	15.11	15.48	15.22	15.55	18.18	15.67	15.11
River Hill Winter 2014	First round	48	17.88	20.97	22.53	22.31	17.88	DNF	18.06
Chesapeake Science Point Spring 2013	First round	31	18.77	22.58	31.61	21.11	19.09	27.53	18.77
River Hill Winter 2013	First round	58	25.88	29.74	28.77	25.88	29.13	39.52	31.31
2x2x2 Cube
CubingUSA Mid-Atlantic Championship 2025	First round	81	3.67	4.03	4.68	3.67	4.17	3.90	4.03
More Cubing with the Cougars WV 2025	First round	22	3.11	3.69	3.86	3.11	3.85	4.20	3.35
Rubik's WCA World Championship 2025	First round	481	2.89	3.37	3.14	3.51	3.65	3.46	2.89
Front Royal Spring 2025	Final	16	3.40	4.10	3.40	3.85	4.12	4.42	4.32
	First round	19	3.48	4.09	DNF	3.68	3.48	4.98	3.61
Cubing with the Cougars WV 2025	Final	9	1.76	3.13	1.76	3.71	3.44	4.57	2.23
	First round	25	3.05	3.93	3.93	3.05	3.74	4.34	4.13
River Hill Fall 2024	Final	16	3.09	3.48	3.84	3.09	3.19	3.42	4.59
	First round	27	3.29	3.95	4.00	3.81	4.69	4.05	3.29
Gaithersburg Back to School 2024	Final	15	1.76	3.09	3.03	1.76	2.82	3.73	3.43
	First round	19	2.04	3.62	2.04	6.63	3.32	3.50	4.04
Bethesda Summer Showdown 2024	First round	18	2.20	3.25	3.37	3.54	3.29	3.10	2.20
Slow N Steady Spring 2024	Final	16	3.38	3.72	3.45	3.38	3.80	4.20	3.92
	First round	17	3.02	3.88	3.87	4.42	3.02	3.55	4.22
Slow N Steady Fall 2023	Final	15	2.83	3.47	5.08	3.37	3.42	3.62	2.83
	First round	24	2.78	3.51	3.41	3.71	4.38	2.78	3.40
Berwick Fall 2023	Final	4	2.21	3.79	3.60	4.36	3.41	2.21	7.25
	First round	5	3.70	3.92	4.58	3.70	4.16	3.80	3.79
Warwick Cube Day 2023	Final	10	2.91	3.78	3.38	3.94	4.16	4.01	2.91
	First round	12	3.11	3.97	3.59	3.11	4.48	4.53	3.84
Slow N Steady Spring 2023	First round	60	4.39	5.01	4.39	6.33	5.25	4.89	4.89
River Hill Fall 2022	Final	11	3.38	4.13	3.48	3.83	3.38	5.07	6.18
	First round	16	3.36	4.06	3.36	4.20	4.15	3.84	4.71
Slow N Steady Winter 2020	First round	39	3.65	4.68	3.79	5.22	5.02	3.65	6.09
Slow N Steady Summer 2018	First round	38	3.96	4.60	5.19	3.96	4.94	4.88	3.97
Maryland 2017	First round	21	1.63	3.32	4.72	2.19	1.63	3.25	4.52
Severna Park Summer 2017	First round	31	3.15	4.55	3.15	4.59	4.68	5.14	4.37
Virginia Open Winter 2017	Final	10	3.85	4.55	4.83	3.85	5.09	4.60	4.22
	First round	11	4.07	4.29	4.07	4.52	4.09	4.26	4.88
Rockville Winter 2017	Final	22	4.42	4.76	4.63	5.72	4.90	4.42	4.74
Virginia Open Spring 2015	Final	10	4.84	5.20	5.32	5.45	4.84	4.84	6.16
	First round	4	4.15	4.44	4.29	4.15	4.59	4.43	6.85
Slow n Steady Fall 2014	Final	11	3.76	4.87	4.96	4.09	5.56	6.94	3.76
	First round	9	4.09	4.98	4.09	7.65	4.80	5.05	5.09
Virginia Open Fall 2014	First round	20	5.06	5.31	5.06	5.61	5.25	6.55	5.08
US Nationals 2014	First round	135	4.77	5.58	7.65	6.40	4.77	4.88	5.45
River Hill Winter 2014	First round	21	3.21	5.64	4.97	5.81	6.91	3.21	6.13
River Hill Winter 2013	First round	36	8.21	10.42	12.31	8.21	9.86	9.09	12.44
4x4x4 Cube
River Hill Fall 2025	First round	18	36.51	41.98	44.02	43.77	38.16	36.51	44.43
Slow N Steady UMD Fall 2025	Final	18	36.99	42.86	44.11	47.08	51.79	36.99	37.40
Rubik's WCA World Championship 2025	First round	799	42.84	45.40	42.84	47.00	45.41	43.79	47.83
Front Royal Spring 2025	Final	13	36.21	43.31	41.75	45.34	53.48	42.85	36.21
Slow N Steady UMD Spring 2025	Final	14	35.86	42.78	41.77	40.22	35.86	46.34	46.47
Bethesda Winter Wonderland 2025	Final	11	35.89	39.53	40.15	35.89	40.99	39.88	38.55
UMBC Fall 2024	First round	23	37.10	49.56	57.55	43.17	50.09	37.10	55.41
Bethesda Summer Showdown 2024	Final	13	36.49	40.17	41.95	48.50	39.38	39.17	36.49
Cubing in the Lion's Den 2024	First round	18	33.78	42.38	33.78	52.73	44.94	40.39	41.82
Berwick Fall 2023	Final	9	41.04	46.25	41.04	48.90	53.29	47.65	42.20
Warwick Cube Day 2023	Final	13	39.25	45.22	48.59	46.10	1:17.34	39.25	40.96
Slow N Steady Winter 2020	Final	45	47.26	51.24	56.26	47.26	50.04	47.42	57.13
Slow N Steady Summer 2019	First round	32	43.58	46.50	44.01	43.58	52.95	46.89	48.59
Slow N Steady Summer 2018	Final	56	56.68	1:00.38	59.77	1:04.67	56.68	56.71	DNF
Maryland 2017	Final	46	52.13	56.03	55.22	52.16	52.13	1:00.72	1:03.41
Severna Park Summer 2017	Final	33	53.49	56.19	53.49	56.29	55.81	57.80	56.46
Slow N Steady Spring 2017	Final	48	55.84	1:10.34	DNF	58.46	1:23.08	1:09.48	55.84
TJHSST Fall 2016	First round	20	51.82	59.65	51.82	1:02.08	1:00.29	56.58	1:07.20
Virginia Open Spring 2015	Final	21	44.45	1:08.70	1:21.90	1:00.11	44.45	1:13.10	1:12.89
Slow n Steady Fall 2014	Final	19	55.17	1:05.89	1:07.34	1:08.69	1:08.23	1:02.09	55.17
Virginia Open Fall 2014	First round	15	59.15	1:09.01	1:07.25	1:12.18	1:14.31	59.15	1:07.61
US Nationals 2014	First round	175	1:07.06	1:13.05	1:08.24	1:13.08	1:07.06	1:18.94	1:17.83
River Hill Winter 2014	Final	42	DNF		DNF	DNF
Chesapeake Science Point Spring 2013	First round	32	2:14.31		2:14.31	2:43.02
River Hill Winter 2013	First round	38	3:09.83		3:09.83	3:50.86
5x5x5 Cube
CubingUSA Mid-Atlantic Championship 2025	Final	100	1:33.83	1:51.52	1:33.83	2:04.14	1:56.11	1:59.62	1:38.83
Slow N Steady UMD Spring 2025	Final	28	1:48.40	1:58.40	1:54.94	1:54.30	2:05.95	1:48.40	2:21.51
Bethesda Winter Wonderland 2025	Final	28	1:31.71	1:44.00	1:35.12	1:45.57	2:13.44	1:31.71	1:51.32
Slow N Steady Spring 2024	Final	33	1:44.57	1:53.58	2:03.72	1:51.59	1:44.57	1:56.77	1:52.39
Cubing in the Lion's Den 2024	Final	34	1:31.28	1:49.55	1:49.47	1:31.28	1:59.00	1:57.90	1:41.29
River Hill Fall 2022	Final	33	1:53.58		1:53.58	2:03.08
Maryland 2017	Final	71	2:18.66		2:18.66	DNF
Slow N Steady Spring 2017	Final	43	2:17.01		DNF	2:17.01
Rockville Winter 2017	Final	34	2:34.63		2:59.19	2:34.63
6x6x6 Cube
CubingUSA Mid-Atlantic Championship 2025	Final	89	4:31.54		4:31.54
River Hill Fall 2022	Final	32	5:02.42		5:02.42
7x7x7 Cube
CubingUSA Mid-Atlantic Championship 2025	Final	76	6:10.80		6:10.80
More Cubing with the Cougars WV 2025	Final	31	6:28.81		6:28.81
3x3x3 Blindfolded
Slow N Steady Spring 2024	Second round	16	4:13.18	DNF	DNF	4:13.18	DNF
	First round	18	3:58.35	DNF	DNF	3:58.35	DNF
Cubing in the Lion's Den 2024	Final	19	3:37.37	DNF	4:53.33	DNF	3:37.37
Warwick Cube Day 2023	Final	10	DNF	DNF	DNF	DNF	DNF
3x3x3 One-Handed
Slow N Steady UMD Fall 2025	Final	5	14.65	15.70	14.87	16.39	14.65	16.68	15.83
	First round	8	13.31	15.69	17.00	16.11	13.31	17.74	13.96
CubingUSA Mid-Atlantic Championship 2025	Final	17	14.71	16.47	18.55	15.74	15.11	24.72	14.71
	First round	19	15.63	16.23	15.63	16.05	18.81	16.13	16.52
More Cubing with the Cougars WV 2025	Final	9	14.76	17.08	17.37	18.55	19.03	14.76	15.31
	First round	12	14.79	16.96	19.94	14.79	15.32	15.85	19.72
Rubik's WCA World Championship 2025	First round	465	14.82	18.17	21.82	14.82	16.66	26.95	16.03
Front Royal Spring 2025	Final	3	12.39	14.28	12.39	14.01	17.40	16.10	12.74
	First round	1	13.31	14.14	14.03	14.86	15.62	13.52	13.31
Slow N Steady UMD Spring 2025	Final	4	13.18	15.26	20.93	13.18	14.93	15.95	14.90
	First round	3	12.67	14.76	15.50	14.59	12.67	14.20	19.81
Cubing with the Cougars WV 2025	Final	4	13.53	15.26	14.78	16.64	14.36	24.95	13.53
River Hill Fall 2024	Final	5	14.09	15.12	20.62	15.42	14.71	14.09	15.22
	First round	7	13.67	15.60	17.43	14.92	20.97	13.67	14.45
UMBC Fall 2024	Final	1	10.87	14.62	14.84	10.87	15.18	13.84	22.32
Slow N Steady Spring 2024	Final	10	16.88	17.86	18.40	20.12	16.88	18.04	17.13
Slow N Steady Fall 2023	Final	15	15.65	17.22	19.80	16.91	17.12	17.63	15.65
Slow N Steady Spring 2023	Final	32	20.28	21.93	21.67	23.27	20.28	46.88	20.85
River Hill Fall 2022	Final	23	15.61	19.85	20.28	19.57	20.01	15.61	19.96
Slow N Steady Winter 2020	First round	36	18.63	21.24	18.63	23.09	18.76	22.39	22.56
Maryland 2017	First round	58	25.66	28.05	25.76	25.66	26.32	35.90	32.08
Slow N Steady Spring 2017	Final	52	28.31	33.20	28.31	43.21	38.39	28.53	32.67
Virginia Open Winter 2017	Final	30	24.34	31.02	24.34	37.81	29.84	41.95	25.41
TJHSST Fall 2016	First round	31	24.88	29.78	25.47	32.67	24.88	36.71	31.21
Virginia Open Spring 2015	First round	20	22.60	36.40	31.87	35.22	22.60	44.80	42.11
Virginia Open Fall 2014	Final	14	28.62	34.17	47.69	28.62	33.83	35.86	32.83
US Nationals 2014	First round	171	38.42	43.10	49.32	40.82	46.81	38.42	41.67
River Hill Winter 2014	First round	34	46.91		48.58	46.91
Clock
CubingUSA Mid-Atlantic Championship 2025	First round	87	10.28	11.35	10.28	11.04	11.04	12.31	11.98
Bethesda Winter Wonderland 2025	First round	36	11.72	15.22	14.66	12.58	11.72	DNF	18.41
Megaminx
CubingUSA Mid-Atlantic Championship 2025	Final	134	3:06.31		4:12.29	3:06.31
More Cubing with the Cougars WV 2025	Final	50	2:54.79		3:05.31	2:54.79
Bethesda Winter Wonderland 2025	Final	52	3:54.36		4:30.96	3:54.36
River Hill Fall 2024	Final	51	3:39.90		3:39.90	3:56.14
Cubing in the Lion's Den 2024	Final	59	3:37.08		DNF	3:37.08
Pyraminx
River Hill Fall 2025	First round	27	5.28	7.00	7.37	7.37	5.28	6.26	8.79
CubingUSA Mid-Atlantic Championship 2025	Second round	71	6.27	7.14	10.04	6.27	6.80	7.86	6.75
	First round	70	6.16	6.29	10.63	6.18	6.47	6.23	6.16
Cubing with the Cougars WV 2025	Final	18	5.02	6.06	5.02	7.22	5.61	5.73	6.84
	First round	22	4.68	7.14	6.46	4.68	6.97	8.64	7.99
River Hill Fall 2024	First round	31	5.53	8.70	6.94	8.52	10.63	5.53	10.81
UMBC Fall 2024	Final	19	6.77	7.61	8.26	7.81	7.95	7.07	6.77
	First round	16	6.04	7.16	8.14	6.04	7.21	6.12	9.78
Berwick Fall 2023	First round	27	7.83	12.26	12.41	15.41	13.71	10.66	7.83
Slow N Steady Spring 2023	First round	40	5.76	8.63	9.41	8.71	8.50	5.76	8.67
Slow N Steady Summer 2018	First round	48	8.06	10.06	10.76	8.06	10.93	8.50	DNF
Maryland 2017	First round	155	5.51	DNF	6.75	DNF	6.68	5.51	DNF
Virginia Open Spring 2015	Final	14	6.97	9.41	8.40	6.97	14.62	8.66	11.18
Slow n Steady Fall 2014	Final	13	7.30	8.37	7.30	10.09	7.91	7.61	9.60
Virginia Open Fall 2014	First round	14	8.56	9.84	10.33	9.96	10.13	9.42	8.56
US Nationals 2014	First round	184	16.11	18.55	21.40	17.66	21.62	16.58	16.11
Skewb
River Hill Fall 2025	Final	47	10.43	12.10	10.43	13.94	11.04	11.32	20.87
CubingUSA Mid-Atlantic Championship 2025	First round	196	12.35	17.15	14.14	17.71	24.24	12.35	19.61
UMBC Fall 2024	First round	63	11.56	16.20	22.88	17.20	14.99	16.40	11.56
Cubing in the Lion's Den 2024	First round	67	13.11	15.68	14.87	16.30	15.87	13.11	18.79
Square-1
Front Royal Spring 2025	First round	30	50.67	1:32.70	DNF	50.67	1:47.72	1:09.18	1:41.21
Bethesda Winter Wonderland 2025	Final	46	53.10		53.10	1:00.18
Gaithersburg Back to School 2024	Final	44	53.61		53.61	1:18.29
Bethesda Summer Showdown 2024	First round	46	1:30.79		1:34.36	1:30.79
3x3x3 Multi-Blind
Slow N Steady Spring 2024	Final	13	DNF		DNF