Matthew Chang

Name: Matthew Chang

Region: United States

Competitions: 13

WCA ID:

2009CHAN02

Gender: Male

Career: 2009.01.18 - 2015.11.22

2023 Annual Summary

Current Personal RecordsBattle

Event	NR	CR	WR	Single	Average	WR	CR	NR	Gold	Silver	Bronze	Solves/Attempts
3x3x3 Cube	8439	11209	44011	14.11	16.10	38131	9632	7228				94/95
2x2x2 Cube	10441	13715	48993	4.68	7.52	60180	17027	12998				34/35
4x4x4 Cube	7086	9562	35678	1:19.92	1:31.54	32941	8945	6710				30/31
5x5x5 Cube	4815	6445	22744	2:48.52	3:26.16	18972	5272	3929				13/13
3x3x3 Blindfolded	1437	1901	8509	6:32.28								3/18
3x3x3 One-Handed	4386	6054	24587	28.94	31.63	19545	4685	3397				35/35
Clock	1392	1668	5522	11.63	12.76	4548	1355	1136	1			19/20
Pyraminx	2971	3820	14713	5.44	6.79	7855	1937	1513	3	1	1	59/60
Square-1	2189	2725	8309	28.13	45.05	10141	3376	2710			1	47/47
Magic	72	102	680	1.25	1.30	312	50	36		1	1	31/35
Master Magic	72	84	607	3.43	3.53	339	40	34		2		10/10

Sum of Ranks

	Sum of NR	NR	Sum of CR	CR	Sum of WR	WR
Single	70286	4911	92400	6559	331630	24391
Average	60849	5422	79714	7112	283515	25809

United States Championship Podiums

Event	Place	Single	Average	Detail
US Nationals 2009
Magic	2	1.53	1.63	1.61 1.61 2.34 1.66 1.53

Overall Medal Collection

Gold	Silver	Bronze
4	4	3

By Event
By Competition

Competition	Round	Place	Best	Average	Detail
3x3x3 Cube
Berkeley Fall 2015	First round	30	14.13	16.46	22.61 14.13 17.15 16.16 16.08
World Championship 2013	First round	241	14.93	16.47	14.93 15.77 17.39 16.26 17.68
Berkeley Fall 2011	Final	19	14.83	16.46	17.53 16.19 16.84 14.83 16.34
	First round	14	14.11	16.10	15.50 14.11 17.75 15.06 18.30
EPGY Stanford Winter 2011	Second round	15	15.58	17.70	17.25 17.77 DNF 18.09 15.58
	First round	12	14.59	16.44	17.80 17.88 14.59 16.02 15.50
Berkeley Fall 2010	Second round	15	14.81	16.99	19.13 16.75 18.93 14.81 15.28
	First round	13	15.66	17.53	15.66 15.96 18.65 17.97 20.05
Stanford Winter 2010	Second round	19	16.84	20.19	17.91 16.84 21.71 22.58 20.96
	First round	19	18.41	20.22	20.31 20.90 18.41 20.81 19.55
Stanford Fall 2009	First round	36	15.65	22.70	29.09 15.65 25.05 23.38 19.66
Berkeley Fall 2009	Second round	25	15.11	19.36	18.58 15.11 19.05 20.44 21.88
	First round	25	18.68	19.88	20.31 21.90 20.19 18.68 19.13
US Nationals 2009	First round	75	20.41	21.47	21.53 24.16 21.65 20.41 21.22
	Qualification round	27	21.90	24.16	25.12 22.29 26.66 25.08 21.90
Berkeley Summer 2009	First round	26	25.19	25.96	25.19 27.16 30.66 25.22 25.50
Berkeley Spring 2009	First round	40	21.96	27.64	31.53 21.96 23.94 31.36 27.63
EPGY Stanford Winter 2009	First round	44	25.50	32.18	34.37 25.50 29.66 37.07 32.50
San Francisco Open 2009	First round	67	30.86	37.50	33.80 43.23 40.53 30.86 38.16

2x2x2 Cube
Competition	Round	Place	Best	Average	Detail
World Championship 2013	First round	282	5.51	7.52	5.51 6.85 6.88 DNF 8.82
EPGY Stanford Winter 2011	Final	14	6.28	8.37	9.00 6.28 7.91 8.43 8.78
Stanford Winter 2010	Final	10	6.41	8.07	6.41 8.80 12.34 7.31 8.09
Stanford Fall 2009	Final	20	7.52	8.57	10.13 8.78 7.77 9.15 7.52
US Nationals 2009	Qualification round	18	4.68	8.62	11.40 6.00 9.91 4.68 9.94
EPGY Stanford Winter 2009	Final	26	9.68	15.82	24.68 12.71 16.19 18.55 9.68
San Francisco Open 2009	Final	35	14.22	19.78	22.08 15.13 22.13 14.22 31.34

4x4x4 Cube
Competition	Round	Place	Best	Average	Detail
Berkeley Fall 2015	Final	23	1:26.05		1:26.05 2:00.21
World Championship 2013	First round	243	1:19.92		1:39.48 1:19.92
EPGY Stanford Winter 2011	Final	13	1:27.03	1:40.47	DNF 1:51.84 1:34.22 1:27.03 1:35.36
Berkeley Fall 2010	Final	12	1:21.52	1:31.54	1:26.84 1:33.43 1:34.36 1:21.52 1:38.59
Stanford Fall 2009	Final	18	1:23.15	1:42.83	1:44.80 1:23.15 1:37.68 1:52.47 1:46.02
Berkeley Fall 2009	Final	15	1:27.50	1:38.88	1:46.44 1:27.50 1:35.52 1:44.80 1:36.31
US Nationals 2009	Qualification round	28	1:29.34	1:44.56	1:47.44 1:53.94 1:32.31 1:29.34 1:55.66
Berkeley Spring 2009	Final	24	2:02.30		2:12.91 2:02.30

5x5x5 Cube
Competition	Round	Place	Best	Average	Detail
World Championship 2013	First round	236	3:32.55		3:32.55 3:57.67
Stanford Winter 2010	Final	9	2:48.52		2:48.52 3:10.44
Berkeley Fall 2009	Final	16	3:10.27		3:10.27 3:18.33
US Nationals 2009	Qualification round	29	3:00.03	3:26.16	3:24.80 3:17.74 3:35.93 3:00.03 3:40.27
Berkeley Summer 2009	Final	14	3:48.61		4:23.86 3:48.61

3x3x3 Blindfolded
Competition	Round	Place	Best	Average	Detail
World Championship 2013	First round	109	DNF	DNF	DNF DNF DNF
Berkeley Fall 2011	Final	6	DNF	DNF	DNF DNF DNS
EPGY Stanford Winter 2011	Final	7	6:32.28	DNF	DNF 6:32.28 DNS
Berkeley Fall 2010	Final	8	DNF	DNF	DNF DNF DNS
Stanford Winter 2010	Final	7	DNF	DNF	DNF DNF DNF
Stanford Fall 2009	Final	5	8:51.50	DNF	8:51.50 DNF DNS
Berkeley Fall 2009	Final	9	7:59.09	DNF	7:59.09 DNF DNS
US Nationals 2009	Qualification round	17	DNF		DNF DNF

3x3x3 One-Handed
Competition	Round	Place	Best	Average	Detail
Berkeley Fall 2015	Final	21	28.94	32.17	30.06 34.25 28.94 32.19 38.11
World Championship 2013	First round	163	29.51	31.63	31.50 29.51 37.49 32.53 30.87
Berkeley Fall 2011	First round	18	37.25	38.83	40.28 38.59 37.63 41.97 37.25
EPGY Stanford Winter 2011	First round	14	33.68	41.07	43.34 1:11.96 43.31 33.68 36.56
Berkeley Fall 2010	First round	16	42.78	46.63	52.31 47.18 47.13 42.78 45.59
Stanford Winter 2010	First round	18	40.97	47.72	46.93 54.15 48.55 47.68 40.97
US Nationals 2009	Qualification round	36	45.02	1:01.49	1:20.00 1:05.18 1:01.38 57.90 45.02

Clock
Competition	Round	Place	Best	Average	Detail
World Championship 2013	First round	52	15.21	17.24	18.59 17.05 15.21 24.90 16.07
Stanford Fall 2009	Final	1	11.63	12.76	DNF 13.27 11.63 12.68 12.33
US Nationals 2009	First round	11	15.72	17.98	17.66 20.22 18.44 15.72 17.84
	Qualification round	2	16.77	18.93	18.25 18.69 19.84 20.83 16.77

Pyraminx
Competition	Round	Place	Best	Average	Detail
Berkeley Fall 2015	Final	5	5.72	6.79	6.44 7.46 8.90 6.47 5.72
World Championship 2013	Second round	40	6.77	7.89	9.28 8.54 6.98 6.77 8.15
	First round	51	6.79	8.05	6.79 7.91 7.39 8.84 9.90
EPGY Stanford Winter 2011	Final	1	5.80	7.21	6.80 8.43 5.80 9.36 6.40
Berkeley Fall 2010	Final	4	6.86	7.89	8.22 7.59 7.86 6.86 8.52
Stanford Winter 2010	Final	1	6.50	7.49	7.78 6.50 9.18 7.03 7.65
Stanford Fall 2009	Final	3	5.44	8.89	9.25 10.22 9.91 7.52 5.44
Berkeley Fall 2009	Final	1	7.09	8.05	7.09 7.59 9.00 7.56 DNF
US Nationals 2009	Final	8	8.27	10.18	11.15 8.27 11.25 8.31 11.09
	First round	3	6.65	8.48	6.65 7.29 7.81 10.34 16.86
Berkeley Summer 2009	Final	2	8.21	10.51	11.06 11.38 8.21 10.63 9.84
Berkeley Spring 2009	Final	4	8.86	12.66	13.59 12.02 8.86 13.41 12.55

Square-1
Competition	Round	Place	Best	Average	Detail
World Championship 2013	First round	88	58.83		1:33.10 58.83
Berkeley Fall 2011	Final	3	40.58	45.05	1:03.77 44.15 47.55 43.46 40.58
EPGY Stanford Winter 2011	Final	6	45.91	48.71	45.91 48.13 49.94 53.48 48.05
Berkeley Fall 2010	First round	7	42.08	48.94	58.61 52.48 42.68 42.08 51.65
Stanford Winter 2010	Final	5	48.28	56.59	55.78 52.56 1:01.47 48.28 1:01.43
Stanford Fall 2009	Final	7	28.13	50.81	1:05.00 54.30 44.80 53.33 28.13
Berkeley Fall 2009	First round	8	45.38	58.98	1:14.69 51.13 1:20.83 51.13 45.38
US Nationals 2009	Qualification round	12	37.02	57.26	1:03.27 1:04.22 49.09 37.02 59.43
Berkeley Summer 2009	First round	11	42.83	1:03.65	1:18.81 49.28 42.83 1:36.59 1:02.86
Berkeley Spring 2009	First round	15	1:16.71	1:35.19	2:00.02 1:30.33 1:16.71 1:42.55 1:32.69

Magic
Competition	Round	Place	Best	Average	Detail
Berkeley Fall 2011	Final	5	1.28	2.75	DNF 3.33 3.34 1.59 1.28
EPGY Stanford Winter 2011	Final	8	1.58	2.74	2.22 4.16 1.58 3.44 2.56
Stanford Winter 2010	Final	14	1.43	DNF	1.43 2.65 DNF 1.46 DNF
Stanford Fall 2009	Final	2	1.25	1.30	1.52 1.31 1.25 1.27 1.33
US Nationals 2009	Final	3	1.53	1.63	1.61 1.61 2.34 1.66 1.53
	First round	17	1.84	2.05	1.84 2.17 3.04 1.87 2.11
	Qualification round	9	1.63	2.42	DNF 2.58 3.03 1.66 1.63

Master Magic
Competition	Round	Place	Best	Average	Detail
Stanford Winter 2010	Final	2	3.50	3.57	3.56 5.50 3.50 3.50 3.64
Stanford Fall 2009	Final	2	3.43	3.53	3.58 3.58 3.43 3.43 5.21

Event	Round	Place	Best	Average	Detail
Berkeley Fall 2015
3x3x3 Cube	First round	30	14.13	16.46	22.61 14.13 17.15 16.16 16.08
4x4x4 Cube	Final	23	1:26.05		1:26.05 2:00.21
3x3x3 One-Handed	Final	21	28.94	32.17	30.06 34.25 28.94 32.19 38.11
Pyraminx	Final	5	5.72	6.79	6.44 7.46 8.90 6.47 5.72

World Championship 2013
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	241	14.93	16.47	14.93 15.77 17.39 16.26 17.68
2x2x2 Cube	First round	282	5.51	7.52	5.51 6.85 6.88 DNF 8.82
4x4x4 Cube	First round	243	1:19.92		1:39.48 1:19.92
5x5x5 Cube	First round	236	3:32.55		3:32.55 3:57.67
3x3x3 Blindfolded	First round	109	DNF	DNF	DNF DNF DNF
3x3x3 One-Handed	First round	163	29.51	31.63	31.50 29.51 37.49 32.53 30.87
Clock	First round	52	15.21	17.24	18.59 17.05 15.21 24.90 16.07
Pyraminx	Second round	40	6.77	7.89	9.28 8.54 6.98 6.77 8.15
	First round	51	6.79	8.05	6.79 7.91 7.39 8.84 9.90
Square-1	First round	88	58.83		1:33.10 58.83

Berkeley Fall 2011
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Final	19	14.83	16.46	17.53 16.19 16.84 14.83 16.34
	First round	14	14.11	16.10	15.50 14.11 17.75 15.06 18.30
3x3x3 Blindfolded	Final	6	DNF	DNF	DNF DNF DNS
3x3x3 One-Handed	First round	18	37.25	38.83	40.28 38.59 37.63 41.97 37.25
Square-1	Final	3	40.58	45.05	1:03.77 44.15 47.55 43.46 40.58
Magic	Final	5	1.28	2.75	DNF 3.33 3.34 1.59 1.28

EPGY Stanford Winter 2011
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	15	15.58	17.70	17.25 17.77 DNF 18.09 15.58
	First round	12	14.59	16.44	17.80 17.88 14.59 16.02 15.50
2x2x2 Cube	Final	14	6.28	8.37	9.00 6.28 7.91 8.43 8.78
4x4x4 Cube	Final	13	1:27.03	1:40.47	DNF 1:51.84 1:34.22 1:27.03 1:35.36
3x3x3 Blindfolded	Final	7	6:32.28	DNF	DNF 6:32.28 DNS
3x3x3 One-Handed	First round	14	33.68	41.07	43.34 1:11.96 43.31 33.68 36.56
Pyraminx	Final	1	5.80	7.21	6.80 8.43 5.80 9.36 6.40
Square-1	Final	6	45.91	48.71	45.91 48.13 49.94 53.48 48.05
Magic	Final	8	1.58	2.74	2.22 4.16 1.58 3.44 2.56

Berkeley Fall 2010
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	15	14.81	16.99	19.13 16.75 18.93 14.81 15.28
	First round	13	15.66	17.53	15.66 15.96 18.65 17.97 20.05
4x4x4 Cube	Final	12	1:21.52	1:31.54	1:26.84 1:33.43 1:34.36 1:21.52 1:38.59
3x3x3 Blindfolded	Final	8	DNF	DNF	DNF DNF DNS
3x3x3 One-Handed	First round	16	42.78	46.63	52.31 47.18 47.13 42.78 45.59
Pyraminx	Final	4	6.86	7.89	8.22 7.59 7.86 6.86 8.52
Square-1	First round	7	42.08	48.94	58.61 52.48 42.68 42.08 51.65

Stanford Winter 2010
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	19	16.84	20.19	17.91 16.84 21.71 22.58 20.96
	First round	19	18.41	20.22	20.31 20.90 18.41 20.81 19.55
2x2x2 Cube	Final	10	6.41	8.07	6.41 8.80 12.34 7.31 8.09
5x5x5 Cube	Final	9	2:48.52		2:48.52 3:10.44
3x3x3 Blindfolded	Final	7	DNF	DNF	DNF DNF DNF
3x3x3 One-Handed	First round	18	40.97	47.72	46.93 54.15 48.55 47.68 40.97
Pyraminx	Final	1	6.50	7.49	7.78 6.50 9.18 7.03 7.65
Square-1	Final	5	48.28	56.59	55.78 52.56 1:01.47 48.28 1:01.43
Magic	Final	14	1.43	DNF	1.43 2.65 DNF 1.46 DNF
Master Magic	Final	2	3.50	3.57	3.56 5.50 3.50 3.50 3.64

Stanford Fall 2009
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	36	15.65	22.70	29.09 15.65 25.05 23.38 19.66
2x2x2 Cube	Final	20	7.52	8.57	10.13 8.78 7.77 9.15 7.52
4x4x4 Cube	Final	18	1:23.15	1:42.83	1:44.80 1:23.15 1:37.68 1:52.47 1:46.02
3x3x3 Blindfolded	Final	5	8:51.50	DNF	8:51.50 DNF DNS
Clock	Final	1	11.63	12.76	DNF 13.27 11.63 12.68 12.33
Pyraminx	Final	3	5.44	8.89	9.25 10.22 9.91 7.52 5.44
Square-1	Final	7	28.13	50.81	1:05.00 54.30 44.80 53.33 28.13
Magic	Final	2	1.25	1.30	1.52 1.31 1.25 1.27 1.33
Master Magic	Final	2	3.43	3.53	3.58 3.58 3.43 3.43 5.21

Berkeley Fall 2009
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	25	15.11	19.36	18.58 15.11 19.05 20.44 21.88
	First round	25	18.68	19.88	20.31 21.90 20.19 18.68 19.13
4x4x4 Cube	Final	15	1:27.50	1:38.88	1:46.44 1:27.50 1:35.52 1:44.80 1:36.31
5x5x5 Cube	Final	16	3:10.27		3:10.27 3:18.33
3x3x3 Blindfolded	Final	9	7:59.09	DNF	7:59.09 DNF DNS
Pyraminx	Final	1	7.09	8.05	7.09 7.59 9.00 7.56 DNF
Square-1	First round	8	45.38	58.98	1:14.69 51.13 1:20.83 51.13 45.38

US Nationals 2009
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	75	20.41	21.47	21.53 24.16 21.65 20.41 21.22
	Qualification round	27	21.90	24.16	25.12 22.29 26.66 25.08 21.90
2x2x2 Cube	Qualification round	18	4.68	8.62	11.40 6.00 9.91 4.68 9.94
4x4x4 Cube	Qualification round	28	1:29.34	1:44.56	1:47.44 1:53.94 1:32.31 1:29.34 1:55.66
5x5x5 Cube	Qualification round	29	3:00.03	3:26.16	3:24.80 3:17.74 3:35.93 3:00.03 3:40.27
3x3x3 Blindfolded	Qualification round	17	DNF		DNF DNF
3x3x3 One-Handed	Qualification round	36	45.02	1:01.49	1:20.00 1:05.18 1:01.38 57.90 45.02
Clock	First round	11	15.72	17.98	17.66 20.22 18.44 15.72 17.84
	Qualification round	2	16.77	18.93	18.25 18.69 19.84 20.83 16.77
Pyraminx	Final	8	8.27	10.18	11.15 8.27 11.25 8.31 11.09
	First round	3	6.65	8.48	6.65 7.29 7.81 10.34 16.86
Square-1	Qualification round	12	37.02	57.26	1:03.27 1:04.22 49.09 37.02 59.43
Magic	Final	3	1.53	1.63	1.61 1.61 2.34 1.66 1.53
	First round	17	1.84	2.05	1.84 2.17 3.04 1.87 2.11
	Qualification round	9	1.63	2.42	DNF 2.58 3.03 1.66 1.63

Berkeley Summer 2009
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	26	25.19	25.96	25.19 27.16 30.66 25.22 25.50
5x5x5 Cube	Final	14	3:48.61		4:23.86 3:48.61
Pyraminx	Final	2	8.21	10.51	11.06 11.38 8.21 10.63 9.84
Square-1	First round	11	42.83	1:03.65	1:18.81 49.28 42.83 1:36.59 1:02.86

Berkeley Spring 2009
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	40	21.96	27.64	31.53 21.96 23.94 31.36 27.63
4x4x4 Cube	Final	24	2:02.30		2:12.91 2:02.30
Pyraminx	Final	4	8.86	12.66	13.59 12.02 8.86 13.41 12.55
Square-1	First round	15	1:16.71	1:35.19	2:00.02 1:30.33 1:16.71 1:42.55 1:32.69

EPGY Stanford Winter 2009
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	44	25.50	32.18	34.37 25.50 29.66 37.07 32.50
2x2x2 Cube	Final	26	9.68	15.82	24.68 12.71 16.19 18.55 9.68

San Francisco Open 2009
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	67	30.86	37.50	33.80 43.23 40.53 30.86 38.16
2x2x2 Cube	Final	35	14.22	19.78	22.08 15.13 22.13 14.22 31.34

No.	Date	Name	Region	City
13	2015-11-22	Berkeley Fall 2015	United States	Berkeley, California
12	2013-07-26~28	World Championship 2013	United States	Las Vegas, Nevada
11	2011-12-03	Berkeley Fall 2011	United States	Berkeley, California
10	2011-02-27	EPGY Stanford Winter 2011	United States	Stanford, California
9	2010-10-24	Berkeley Fall 2010	United States	Berkeley, California
8	2010-02-13	Stanford Winter 2010	United States	Stanford, California
7	2009-11-21	Stanford Fall 2009	United States	Stanford, California
6	2009-11-14	Berkeley Fall 2009	United States	Berkeley, California
5	2009-08-14~16	US Nationals 2009	United States	Stanford, California
4	2009-06-27	Berkeley Summer 2009	United States	Berkeley, California
3	2009-04-25	Berkeley Spring 2009	United States	Berkeley, California
2	2009-02-14	EPGY Stanford Winter 2009	United States	Stanford, California
1	2009-01-18	San Francisco Open 2009	United States	San Francisco, California

Closest Cubers

Person	Competitions
Ryan Jew	13
Edward Lin	12
Jeremy Fleischman	12
Shelley Chang	12
Dan Dzoan	11
Vincent Sheu	11
Connie Chen	10
Eileen Xie	10
Justin Adsuara	10
Lucas Garron	10
Nick Young	10
Philip Chang	10
Craig Hayashi	9
Daljit Singh	9
David Gomes	8
Devin Corr-Robinett	8
Leyan Lo	8
Nathaniel Knopf	8
Stephanie Chow	8
Takao Hashimoto (橋本貴夫)	8

Seen Cubers

Times	Competitors
1	836
2	87
3	27
4	16
5	11
6	6
7	5
8	6
9	2
10	6
11	2
12	3
13	1
All	1008