Yu-Chia Chang (張祐嘉)

Region	WCA ID	Gender	Competitions	Completed Solves
Chinese Taipei	2019CHAN59	Male	11	356

Event	NR	CR	WR	Single	Average	WR	CR	NR
3x3x3 Cube	20	458	1352	5.99	7.06	641	255	13
2x2x2 Cube	125	2163	8917	2.01	2.74	3176	858	40
4x4x4 Cube	74	761	2167	29.58	35.62	2702	971	94
5x5x5 Cube	171	1621	4562	1:09.46	1:20.05	5287	1870	181
3x3x3 Fewest Moves	104	1630	5934	40
3x3x3 One-Handed	85	1732	4802	14.23	19.34	6692	2597	129
Clock	91	1701	7069	9.43	12.50	8468	2033	110
Megaminx	91	1549	5582	1:10.79	1:23.06	6172	1734	100
Pyraminx	199	4500	16559	4.95	6.55	10084	2975	143
Skewb	456	9379	38251	9.60	20.75	54872	13052	607
Square-1	42	506	2199	11.44	13.22	1350	307	24

Gold	Silver	Bronze
0	0	1

Competition	Round	Place	Single	Average	Solves
3x3x3 Cube
Maru Cube Day Taiwan 2026	Second round	13	6.97	8.61	6.97	9.60	8.31	9.36	8.15
	First round	2	5.99	7.06	7.29	9.07	7.57	6.31	5.99
Taoyuan Airport Cube Day 2025	Final	3	6.49	7.72	7.27	8.24	7.64	6.49	10.09
	Second round	3	7.10	7.60	9.52	7.49	7.10	8.06	7.24
	First round	12	6.38	8.45	9.70	8.54	7.12	6.38	10.50
Shin Kong Cube Open - Taichung 2025	Final	5	7.15	7.98	9.52	8.64	7.59	7.15	7.70
	Second round	4	7.23	7.84	7.49	8.53	8.13	7.23	7.90
	First round	4	7.12	8.13	9.07	8.82	7.60	7.12	7.98
Hsinchu Summer Open 2025	Final	8	7.69	8.95	DNF	10.09	8.02	7.69	8.73
	Second round	10	6.82	8.79	6.82	8.56	9.15	9.68	8.67
	First round	12	6.77	8.74	7.93	6.77	11.12	11.79	7.18
BQHS Spring Open 2025	Second round	29	8.01	9.83	9.65	8.01	11.04	9.49	10.34
	First round	14	6.79	8.95	7.91	8.17	10.78	14.82	6.79
Taiwan Championship 2024	Final	9	8.59	9.19	9.30	9.63	9.20	9.08	8.59
	Semi Final	10	7.28	8.26	9.40	9.33	7.68	7.78	7.28
	Second round	25	7.90	9.43	10.57	9.19	8.53	11.20	7.90
	First round	6	7.45	7.84	8.06	8.82	7.45	7.76	7.69
Shin Kong Cube Open - Taichung 2024	Final	6	6.40	8.71	6.40	10.06	7.70	9.03	9.39
	Second round	7	7.78	8.62	7.98	10.34	7.78	8.93	8.96
	First round	8	8.09	9.04	8.25	9.67	9.31	8.09	9.56
Hsinchu Summer Open 2024	Second round	19	8.24	9.30	8.24	9.99	8.81	14.19	9.11
	First round	10	7.62	8.60	7.62	8.75	10.82	9.34	7.72
Taipei Summer Open 2024	Second round	46	8.65	11.01	13.38	9.88	13.42	9.78	8.65
	First round	15	8.37	9.14	9.55	8.43	10.16	9.44	8.37
Taichung Open 2024	Second round	15	7.35	9.48	9.18	9.99	9.28	7.35	10.58
	First round	15	8.17	9.96	8.78	10.70	10.78	10.40	8.17
Dream One Cube Open 2019	First round	83	17.91	19.99	19.62	17.91	19.39	20.96	21.43
2x2x2 Cube
Maru Cube Day Taiwan 2026	Second round	14	2.31	3.06	3.38	3.22	3.23	2.31	2.73
	First round	30	3.13	3.81	3.13	4.58	3.60	3.26	4.63
Taoyuan Airport Cube Day 2025	Second round	23	3.27	3.77	3.27	3.27	4.01	7.42	4.04
	First round	16	2.44	3.31	2.44	3.06	2.64	6.56	4.22
Hsinchu Summer Open 2025	First round	16	2.33	3.42	3.28	3.07	3.91	3.90	2.33
BQHS Spring Open 2025	Final	14	2.06	3.35	3.48	3.25	5.32	3.33	2.06
	First round	8	2.16	2.74	3.28	3.44	2.73	2.16	2.22
Taiwan Championship 2024	First round	98	3.25	5.78	6.38	9.65	4.10	3.25	6.86
Hsinchu Summer Open 2024	First round	23	2.01	3.98	4.97	5.70	3.40	3.57	2.01
Taipei Summer Open 2024	Second round	30	3.07	4.08	3.56	3.91	4.76	3.07	6.66
	First round	6	2.33	3.02	2.33	3.47	2.34	4.06	3.25
Taichung Open 2024	First round	25	2.35	4.08	3.40	3.43	2.35	5.42	6.74
Dream One Cube Open 2019	First round	59	6.80	7.17	6.80	7.35	6.93	7.24	7.66
4x4x4 Cube
Maru Cube Day Taiwan 2026	First round	43	32.72	37.13	32.72	35.93	38.40	40.70	37.05
Taoyuan Airport Cube Day 2025	Second round	20	29.58	35.62	35.11	38.20	29.58	39.48	33.56
	First round	23	32.73	35.80	37.03	35.86	35.73	32.73	35.81
Hsinchu Summer Open 2025	First round	32	32.27	39.93	32.27	43.71	37.92	49.32	38.15
BQHS Spring Open 2025	First round	28	35.50	38.74	39.62	36.90	35.50	41.79	39.69
Taiwan Championship 2024	First round	87	42.55	45.74	48.56	52.98	44.76	42.55	43.90
Hsinchu Summer Open 2024	First round	54	37.04	51.00	56.33	DNF	42.92	37.04	53.75
Taipei Summer Open 2024	First round	62	43.37	45.40	45.65	45.25	43.37	45.31	59.91
Taichung Open 2024	First round	45	34.43	46.02	34.43	49.49	50.80	39.64	48.92
Dream One Cube Open 2019	First round	73	1:53.49		1:59.71	1:53.49
5x5x5 Cube
Maru Cube Day Taiwan 2026	First round	67	1:11.63	1:20.05	1:19.15	1:11.63	1:19.28	1:21.73	1:37.96
Taoyuan Airport Cube Day 2025	Second round	55	1:09.46	1:24.06	1:30.09	1:20.00	1:22.08	1:09.46	1:31.92
	First round	55	1:11.32	1:20.20	1:17.94	1:24.12	1:11.32	1:18.54	1:25.26
3x3x3 Fewest Moves
Taiwan Championship 2024	Final	14	40		40
3x3x3 One-Handed
Maru Cube Day Taiwan 2026	First round	46	16.28	20.51	17.94	22.55	21.05	16.28	22.72
Hsinchu Summer Open 2025	First round	22	14.23	19.34	18.73	14.23	18.50	25.80	20.79
BQHS Spring Open 2025	First round	37	20.65	22.36	20.87	20.65	26.13	22.55	23.66
Taiwan Championship 2024	First round	61	21.81	24.16	25.73	24.70	21.81	24.02	23.77
Hsinchu Summer Open 2024	First round	32	19.47	22.94	19.47	25.99	24.87	23.46	20.50
Taipei Summer Open 2024	First round	37	16.13	20.00	24.22	21.26	17.57	21.17	16.13
Taichung Open 2024	Final	37	19.92	23.53	19.92	22.33	32.47	20.87	27.40
Clock
Taiwan Championship 2024	First round	73	9.43	DNF	10.24	9.58	DNF	DNF	9.43
Taipei Summer Open 2024	First round	47	12.97	18.28	DNF	12.97	14.55	17.79	22.51
Taichung Open 2024	First round	24	11.31	12.50	11.31	11.95	12.30	DNF	13.24
Megaminx
Maru Cube Day Taiwan 2026	First round	45	1:10.79	1:23.06	1:16.73	1:33.89	1:18.55	1:10.79	DNF
Pyraminx
Taiwan Championship 2024	First round	33	4.95	7.23	8.15	4.95	6.00	8.19	7.55
Taipei Summer Open 2024	Second round	36	6.63	7.15	13.61	7.49	7.15	6.63	6.81
	First round	32	5.75	6.55	6.96	6.37	6.31	8.48	5.75
Taichung Open 2024	First round	38	6.67	10.63	9.24	12.48	12.12	6.67	10.53
Skewb
Taipei Summer Open 2024	First round	83	9.60	20.75	9.60	38.50	12.29	34.93	15.04
Square-1
Taoyuan Airport Cube Day 2025	Final	9	11.52	16.39	20.18	14.82	11.52	14.18	26.62
	First round	8	11.44	13.22	12.31	14.87	21.45	11.44	12.47
Taiwan Championship 2024	First round	25	17.96	20.34	17.96	28.83	20.13	19.40	21.49
Taipei Summer Open 2024	First round	29	22.55	28.08	22.55	32.12	28.57	23.76	31.90

Current Personal Records

Medal Collection