Erik Cheng (鄭聿軒)

Region	WCA ID	Gender	Competitions	Completed Solves
United States	2012CHEN23	Male	26	862

Current Personal Records

Event	NR	CR	WR	Single	Average	WR	CR	NR
3x3x3 Cube	1716	2206	8161	8.86	10.18	5700	1543	1213
2x2x2 Cube	2509	3266	11891	2.56	4.27	12251	3484	2676
4x4x4 Cube	726	980	3956	36.16	41.86	3965	978	729
5x5x5 Cube	492	651	2479	1:08.87	1:16.85	2521	656	490
6x6x6 Cube	1159	1557	5414	3:12.02	4:37.65	7774	2305	1722
7x7x7 Cube	1806	2433	8295	7:14.96
3x3x3 Fewest Moves	493	620	2942	36
3x3x3 One-Handed	1503	2068	8465	18.54	22.48	7881	1869	1360
Clock	1913	2306	7557	13.93	19.17	8564	2660	2220
Megaminx	1301	1826	6731	1:31.58	1:45.00	7011	1888	1340
Pyraminx	4441	5718	21472	6.38	10.74	28046	7571	5888
Skewb	9894	12485	39144	13.09	15.58	31601	9924	7850
Square-1	2745	3419	10390	33.77	55.49	11838	3926	3129

Results
Map

Competition	Round	Place	Single	Average	Solves
3x3x3 Cube
CubingUSA Southern Championship 2019	Second round	23	8.86	11.80	18.85	11.22	12.80	8.86	11.38
	First round	15	10.16	10.77	11.54	10.48	10.30	10.16	12.52
Katy Cubing 2019	Final	12	9.55	12.04	9.55	12.26	11.43	13.08	12.43
	Second round	9	9.64	10.58	10.98	12.81	10.22	10.55	9.64
	First round	5	9.62	10.39	10.58	9.62	11.65	10.28	10.32
Berkeley Winter 2018	Second round	16	9.53	11.05	9.53	11.61	11.94	9.78	11.77
	First round	18	10.43	11.47	12.47	10.43	11.37	10.57	13.71
Berkeley Fall 2017	Second round	25	9.90	11.58	10.61	18.97	9.90	13.55	10.58
	First round	26	10.13	12.00	11.41	14.77	10.13	11.79	12.81
Berkeley Summer 2017	Second round	21	10.18	11.61	10.86	10.18	13.84	12.18	11.79
	First round	9	9.16	10.18	9.16	10.82	10.21	12.12	9.50
SacCubing II 2017	Final	12	10.36	12.37	15.22	12.32	13.45	10.36	11.33
	Second round	11	11.54	12.02	12.41	11.54	11.68	12.78	11.97
	First round	21	10.29	13.45	12.17	10.29	14.01	14.18	16.83
6.25 Bay Area 2017	First round	29	10.89	13.39	14.93	12.38	12.87	DNF	10.89
Berkeley Spring 2017	Second round	18	11.27	12.41	11.82	11.27	14.64	12.46	12.95
	First round	16	10.64	11.57	14.76	11.95	11.97	10.79	10.64
Berkeley Winter 2017	Second round	14	10.91	11.74	15.41	12.03	10.91	11.27	11.93
	First round	15	10.48	11.77	11.48	12.08	12.59	10.48	11.75
Berkeley Fall 2016	Second round	24	10.07	15.30	10.07	12.24	22.26	11.40	28.57
	First round	17	9.78	12.16	10.58	13.63	13.29	9.78	12.60
Berkeley Summer 2016	Second round	16	10.99	11.83	11.28	12.18	12.51	12.03	10.99
	First round	24	10.39	12.79	11.27	10.39	14.70	14.89	12.40
Berkeley Spring 2016	Second round	10	10.81	11.51	11.18	10.81	11.01	12.34	14.19
	First round	14	10.26	11.64	12.72	10.26	11.40	12.50	11.01
Berkeley Winter 2016	First round	159	13.58	DNF	DNF	13.58	16.38	DNF	17.11
Berkeley Fall 2015	Second round	13	11.96	12.87	12.90	14.58	13.18	12.52	11.96
	First round	13	11.19	12.15	11.19	14.15	11.81	12.33	12.30
Berkeley Summer 2015	Second round	15	11.19	13.28	13.97	14.28	17.81	11.58	11.19
	First round	11	11.09	11.97	12.05	11.09	11.36	12.50	16.02
BASC 7 2015	First round	14	10.66	12.64	12.09	11.57	15.12	10.66	14.25
BASC 6 2015	Final	15	11.62	14.16	16.70	13.72	13.34	15.41	11.62
	First round	15	11.75	13.48	15.13	12.70	14.82	11.75	12.93
Berkeley Spring 2015	Second round	16	9.58	13.59	9.58	14.50	14.38	14.25	12.13
	First round	15	11.94	12.80	13.78	12.09	12.86	11.94	13.46
BASC 5: Everything But 2x2 2015	Second round	19	13.24	14.18	14.50	14.61	13.75	14.30	13.24
	First round	23	12.50	14.93	16.91	13.98	14.17	16.63	12.50
Berkeley Winter 2015	Second round	21	12.75	15.01	12.75	13.18	DNF	17.55	14.31
	First round	17	10.61	13.64	11.28	14.84	14.81	16.53	10.61
Berkeley Fall 2014	Final	8	9.33	12.41	11.36	12.22	13.66	9.33	17.41
	Second round	10	12.80	13.83	13.86	14.27	12.80	13.36	14.97
	First round	12	12.61	14.32	18.80	15.50	14.16	12.61	13.31
BASC 4: Día de los Cubos 2014	First round	29	12.04	15.87	15.19	12.04	18.27	17.08	15.35
Mingdao Cube Carnival 2014	Second round	15	11.25	13.67	16.47	11.25	14.45	12.90	13.67
	First round	22	12.54	16.71	18.86	15.12	16.16	12.54	DNF
Cubetcha 2013	Final	14	14.81	16.07	15.68	15.97	16.56	16.63	14.81
	Second round	11	11.94	14.29	14.19	15.61	11.94	13.08	15.97
	First round	15	14.05	15.68	17.53	15.33	14.05	14.19	18.90
Cubetcha 2012	Second round	21	18.30	21.95	23.72	24.21	22.31	19.83	18.30
	First round	16	18.40	20.39	27.30	21.83	18.40	20.43	18.91
United States National Championships 2012	First round	192	19.80	25.97	26.93	25.22	29.31	25.77	19.80
2x2x2 Cube
CubingUSA Southern Championship 2019	First round	23	3.85	4.27	3.98	4.58	4.48	4.34	3.85
Berkeley Winter 2018	First round	31	3.58	4.96	5.67	4.53	7.22	4.67	3.58
Berkeley Fall 2017	First round	80	4.68	8.36	6.21	12.09	4.68	6.77	26.38
Berkeley Summer 2017	First round	26	2.92	5.04	5.79	5.22	4.74	2.92	5.15
6.25 Bay Area 2017	Final	28	5.01		5.01
Berkeley Spring 2017	First round	28	4.64	5.28	5.58	6.15	4.64	5.04	5.22
Berkeley Fall 2016	First round	23	4.73	5.35	5.17	4.73	5.38	6.69	5.50
Berkeley Summer 2016	First round	40	4.18	5.45	8.43	5.22	5.14	4.18	6.00
Berkeley Winter 2016	Final	16	2.91	5.09	5.68	4.75	5.64	2.91	4.89
Berkeley Summer 2015	Final	8	4.08	7.26	12.96	DNF	4.72	4.09	4.08
	First round	8	4.27	4.73	4.27	5.43	4.32	7.68	4.45
Berkeley Spring 2015	Final	11	3.08	5.14	5.58	3.08	7.66	5.44	4.40
Berkeley Winter 2015	Final	15	2.56	5.14	5.66	2.56	4.84	5.25	5.34
	First round	13	4.33	4.93	4.88	4.52	5.40	5.61	4.33
Berkeley Fall 2014	Final	9	3.40	4.72	6.21	3.55	3.40	5.66	4.94
	First round	6	2.86	4.47	4.66	4.97	2.86	3.78	5.40
Mingdao Cube Carnival 2014	Final	4	2.80	4.71	2.80	4.40	5.38	4.35	5.84
	Second round	4	3.92	5.16	4.98	5.66	4.83	6.69	3.92
	First round	6	2.61	5.13	4.44	6.37	2.61	4.59	7.94
Cubetcha 2013	Second round	11	4.16	5.32	6.33	4.86	15.21	4.77	4.16
	First round	16	4.05	5.54	5.94	5.71	5.00	5.90	4.05
Cubetcha 2012	Final	7	6.09	7.41	6.19	10.25	8.80	6.09	7.25
	Second round	8	3.38	5.94	3.38	5.13	DNF	8.41	4.28
	First round	12	6.15	6.83	8.21	7.77	6.19	6.15	6.53
United States National Championships 2012	First round	172	9.34	16.50	23.85	9.34	12.06	13.59	25.79
4x4x4 Cube
CubingUSA Southern Championship 2019	First round	17	40.52	44.37	DNF	40.52	44.72	45.98	42.40
Katy Cubing 2019	Final	9	37.86	44.33	37.86	42.86	44.27	45.86	49.18
	First round	6	36.16	41.86	41.51	46.12	50.41	36.16	37.94
SacCubing II 2017	Final	11	46.94	50.06	55.20	47.36	46.94	50.71	52.12
	First round	12	43.24	47.56	43.24	51.76	47.59	49.11	45.97
Berkeley Spring 2017	Final	13	45.53	51.31	54.58	51.89	55.91	47.47	45.53
Berkeley Winter 2017	Final	13	43.16	51.77	59.82	43.16	53.73	49.08	52.49
Berkeley Fall 2016	Final	16	49.70	55.26	1:01.20	50.78	49.70	55.70	59.30
Berkeley Summer 2016	Final	10	45.53	46.82	47.27	1:03.13	45.67	45.53	47.52
Berkeley Spring 2016	Final	16	47.80	52.16	53.00	58.68	53.15	50.32	47.80
Berkeley Fall 2015	Final	8	43.58	48.99	50.86	45.36	43.58	50.75	52.47
Berkeley Summer 2015	Final	13	48.74	53.84	59.53	52.72	48.74	49.28	1:07.72
BASC 7 2015	Final	16	45.27	54.69	52.18	56.87	55.02	DNF	45.27
BASC 6 2015	First round	14	51.20	56.48	58.19	53.21	51.20	58.77	58.05
Berkeley Spring 2015	Final	7	47.08	48.91	47.08	48.27	49.22	49.25	1:08.75
BASC 5: Everything But 2x2 2015	First round	18	45.91	56.34	1:01.59	57.64	45.91	57.22	54.15
Berkeley Winter 2015	Final	13	50.81	57.89	53.65	1:16.00	50.81	1:04.06	55.96
Berkeley Fall 2014	Final	7	45.56	51.58	45.56	1:17.59	48.18	48.00	58.56
	First round	10	48.21	57.06	DNF	55.16	54.90	1:01.13	48.21
BASC 4: Día de los Cubos 2014	Final	9	44.20	50.98	50.82	47.83	54.28	1:02.01	44.20
Mingdao Cube Carnival 2014	First round	10	48.48	54.47	57.96	49.83	58.13	55.62	48.48
Cubetcha 2013	Final	9	54.52	1:02.11	1:06.86	57.63	1:02.22	1:06.47	54.52
Cubetcha 2012	Final	14	1:16.84	1:53.15	1:16.84	1:45.81	1:59.46	1:54.19	DNF
United States National Championships 2012	First round	149	2:03.79		2:22.41	2:03.79
5x5x5 Cube
CubingUSA Southern Championship 2019	First round	12	1:13.16	1:19.47	1:15.89	1:13.16	1:27.32	1:25.15	1:17.38
Katy Cubing 2019	Final	6	1:12.69	1:22.66	1:28.81	1:22.04	1:23.63	1:12.69	1:22.31
	First round	5	1:08.87	1:16.85	1:08.87	1:47.83	1:21.00	1:10.14	1:19.40
Berkeley Fall 2017	Final	15	1:36.14	1:42.81	1:36.14	1:42.10	1:38.77	1:47.56	1:50.19
SacCubing II 2017	Final	12	1:36.39	1:39.89	1:42.58	1:42.42	1:38.77	1:38.49	1:36.39
6.25 Bay Area 2017	Final	15	1:28.63	1:37.23	1:34.24	1:40.77	1:39.08	1:38.38	1:28.63
Berkeley Fall 2016	Final	14	1:43.80	1:49.49	2:02.95	1:50.06	1:49.31	1:43.80	1:49.11
Berkeley Spring 2016	Final	14	1:39.45	1:54.14	2:00.69	1:48.78	1:56.88	1:39.45	1:56.75
Berkeley Summer 2015	Final	9	1:34.31	1:44.98	1:44.71	1:46.81	1:43.43	1:34.31	1:59.25
BASC 7 2015	Final	11	1:31.85	1:47.18	2:03.57	1:57.27	1:43.35	1:40.91	1:31.85
Berkeley Spring 2015	Final	4	1:31.34	1:37.07	1:38.53	1:40.11	1:43.72	1:31.34	1:32.56
BASC 5: Everything But 2x2 2015	Final	14	1:38.59	1:47.01	1:38.59	1:47.73	1:40.18	1:54.89	1:53.12
Berkeley Fall 2014	Final	9	1:44.06	1:54.05	DNF	1:44.06	1:45.09	1:55.63	2:01.43
BASC 4: Día de los Cubos 2014	Final	10	1:37.98	1:54.28	1:58.85	1:37.98	1:58.04	1:45.94	2:02.28
Mingdao Cube Carnival 2014	First round	10	1:47.78	1:53.38	1:47.78	2:08.40	1:54.78	1:56.98	1:48.39
Cubetcha 2013	Final	14	2:13.88	2:21.45	2:31.46	2:29.13	2:17.65	2:13.88	2:17.58
6x6x6 Cube
CubingUSA Southern Championship 2019	First round	22	3:12.02	DNF	3:45.45	DNF	3:12.02
Berkeley Winter 2018	Final	24	4:20.23	4:48.39	4:20.23	5:14.11	4:50.84
SacCubing II 2017	Final	16	4:38.01		4:38.01
6.25 Bay Area 2017	First round	24	5:15.30		5:15.30
Berkeley Spring 2016	Final	14	4:15.82	4:37.65	4:15.82	4:59.52	4:37.61
Berkeley Fall 2015	Final	8	4:33.59		4:33.59
BASC 5: Everything But 2x2 2015	Final	11	DNF		DNF
Berkeley Fall 2014	Final	5	3:52.03	DNF	3:52.03	4:23.06	DNF
7x7x7 Cube
Katy Cubing 2019	Final	16	DNF		DNF
Berkeley Winter 2018	Final	18	7:14.96		7:14.96
SacCubing II 2017	Final	15	7:25.60		7:25.60
Berkeley Fall 2015	Final	8	8:13.53		8:13.53
Cubetcha 2013	Final	15	8:36.18		8:36.18
3x3x3 Fewest Moves
CubingUSA Southern Championship 2019	Final	6	36		36
BASC 5: Everything But 2x2 2015	Final	23	DNF	DNF	DNF	DNF	DNF
3x3x3 One-Handed
CubingUSA Southern Championship 2019	First round	38	24.86	28.51	26.41	24.86	29.00	32.28	30.12
Berkeley Winter 2018	First round	43	26.47	30.03	26.56	26.47	28.01	39.77	35.53
Berkeley Fall 2017	First round	33	23.26	25.20	26.43	25.88	24.05	23.26	25.66
Berkeley Summer 2017	First round	27	19.17	25.15	27.90	30.23	25.06	19.17	22.49
Berkeley Spring 2017	First round	18	21.71	24.89	25.74	25.41	21.71	30.88	23.52
Berkeley Winter 2017	First round	29	25.31	27.57	29.58	25.31	32.35	26.71	26.43
Berkeley Fall 2016	First round	18	18.54	22.48	20.51	23.39	23.54	18.54	28.74
Berkeley Summer 2016	First round	22	21.28	24.54	23.77	32.00	25.37	24.49	21.28
Berkeley Spring 2016	Final	20	23.64	26.89	24.58	23.64	28.01	30.52	28.09
Berkeley Fall 2015	Final	14	23.68	25.51	25.06	29.02	23.68	24.13	27.33
Berkeley Summer 2015	First round	14	21.77	24.40	25.47	26.90	21.77	23.08	24.65
BASC 7 2015	Final	13	23.34	24.29	25.37	26.56	23.64	23.34	23.87
BASC 6 2015	First round	13	25.26	27.08	26.24	29.36	30.55	25.26	25.63
Berkeley Spring 2015	First round	15	21.27	26.66	24.94	26.34	28.69	21.27	31.47
BASC 5: Everything But 2x2 2015	First round	17	24.21	26.84	30.38	26.81	24.21	25.63	28.07
Berkeley Winter 2015	First round	14	21.27	26.99	31.56	26.90	30.81	21.27	23.25
Berkeley Fall 2014	First round	13	20.58	27.09	27.11	20.58	40.16	25.50	28.66
BASC 4: Día de los Cubos 2014	First round	14	22.52	25.18	25.60	29.36	24.36	22.52	25.58
Mingdao Cube Carnival 2014	Second round	14	24.60	28.47	27.67	28.40	29.33	24.60	33.44
	First round	14	21.49	28.79	24.93	32.12	29.32	37.05	21.49
Cubetcha 2013	Final	9	25.15	30.64	29.63	25.15	28.83	40.58	33.46
Cubetcha 2012	Final	10	31.59	39.75	39.59	40.47	40.50	31.59	39.18
United States National Championships 2012	First round	137	39.86	53.70	48.13	1:02.62	1:08.06	39.86	50.36
Clock
CubingUSA Southern Championship 2019	Final	19	28.88		DNF	28.88
Berkeley Spring 2017	Final	7	21.72		21.72	DNF
Berkeley Summer 2015	Final	13	17.64	DNF	21.98	DNF	20.91	17.64	DNF
BASC 6 2015	Final	7	15.91	DNF	DNF	16.73	DNF	17.91	15.91
BASC 5: Everything But 2x2 2015	Final	6	13.93	19.17	18.69	37.16	18.39	13.93	20.43
Megaminx
CubingUSA Southern Championship 2019	First round	26	1:51.33	1:59.40	2:16.16	2:11.76	1:53.93	1:51.33	1:52.50
Katy Cubing 2019	First round	8	1:31.58	1:45.00	1:31.58	1:56.10	1:50.47	1:37.43	1:47.11
Berkeley Fall 2017	Final	12	1:33.55	1:52.96	2:08.00	1:47.43	1:54.65	1:33.55	1:56.81
Berkeley Summer 2017	Final	18	1:44.57	1:51.41	1:44.57	1:46.28	1:47.10	2:03.54	2:00.85
SacCubing II 2017	Final	15	2:23.81		2:23.81
6.25 Bay Area 2017	Final	13	1:35.97	1:46.94	2:00.68	1:42.63	1:35.97	1:53.90	1:44.28
Berkeley Fall 2016	Final	13	1:47.05	1:56.96	1:47.05	1:59.93	1:53.54	1:58.79	1:58.54
Berkeley Spring 2016	Final	9	1:51.89	1:56.02	1:59.40	2:31.47	1:55.83	1:52.84	1:51.89
Berkeley Winter 2016	Final	8	2:03.04		2:03.04	2:13.46
BASC 5: Everything But 2x2 2015	Final	9	1:52.75	2:02.87	2:21.27	2:08.57	2:01.97	1:58.08	1:52.75
Mingdao Cube Carnival 2014	Final	4	1:54.31	2:11.63	2:03.03	2:13.34	2:18.52	2:23.30	1:54.31
	First round	2	1:45.26	1:56.64	1:49.98	2:05.98	1:54.15	1:45.26	2:05.80
Pyraminx
CubingUSA Southern Championship 2019	First round	102	10.41	20.31	12.15	37.75	10.41	24.31	24.46
Berkeley Winter 2018	Final	69	10.21	13.91	26.63	10.21	15.90	14.91	10.91
SacCubing II 2017	Final	40	9.49	14.55	20.54	17.61	10.76	15.27	9.49
Berkeley Summer 2016	Final	49	11.54	14.76	14.05	13.69	17.52	16.53	11.54
Berkeley Fall 2015	Final	24	8.97	11.80	11.38	12.08	13.21	8.97	11.94
BASC 7 2015	Final	33	8.55	13.82	9.20	12.90	8.55	DNF	19.36
BASC 5: Everything But 2x2 2015	First round	24	10.41	11.12	13.48	10.48	12.24	10.41	10.64
Berkeley Winter 2015	First round	18	6.38	11.73	13.91	12.93	6.38	9.77	12.50
Mingdao Cube Carnival 2014	Final	9	10.49	11.86	12.36	11.01	12.21	15.05	10.49
	First round	9	9.09	10.74	11.77	11.27	9.09	16.42	9.18
United States National Championships 2012	First round	67	13.06	15.13	14.22	16.59	14.59	13.06	19.52
Skewb
Berkeley Winter 2018	Final	70	19.77		20.35	19.77
Berkeley Summer 2017	First round	46	19.57		19.57	DNF
Berkeley Winter 2017	Final	47	24.44		53.20	24.44
Berkeley Winter 2016	Final	41	20.34		20.34	22.34
Berkeley Fall 2015	Final	22	15.83	20.65	15.83	18.36	26.25	20.53	23.06
BASC 6 2015	First round	18	13.09	15.58	19.32	14.14	13.27	13.09	28.70
BASC 5: Everything But 2x2 2015	First round	34	16.56	21.89	19.55	25.14	23.40	22.72	16.56
Berkeley Winter 2015	Final	23	17.56	21.21	24.52	25.31	20.09	17.56	19.03
Square-1
CubingUSA Southern Championship 2019	First round	34	43.63	1:07.85	43.63	1:14.85	1:07.75	1:34.21	1:00.95
Berkeley Summer 2016	Final	20	1:21.11		DNF	1:21.11
Berkeley Summer 2015	Final	10	50.50	DNF	1:10.19	50.50	DNF	DNF	DNF
BASC 5: Everything But 2x2 2015	Final	12	56.63		56.63	1:00.11
BASC 4: Día de los Cubos 2014	Final	12	1:09.26		1:09.26	DNF
Cubetcha 2013	Final	9	33.77	55.49	1:05.61	52.56	33.77	1:08.80	48.31
Magic
United States National Championships 2012	First round	37	1.75	2.16	2.88	1.86	1.75	3.83	1.75