Jakka Chang

Region	WCA ID	Gender	Competitions	Completed Solves
Netherlands	2014CHAN17	Male	14	332

Current Personal Records

Event	NR	CR	WR	Single	Average	WR	CR	NR
3x3x3 Cube	85	2175	7992	8.12	9.86	7331	1944	74
2x2x2 Cube	755	17937	62364	4.63	5.57	40154	11544	483
4x4x4 Cube	181	4452	15914	46.23	49.79	12925	3628	148
5x5x5 Cube	126	3056	10349	1:29.08	1:36.80	9754	2854	121
3x3x3 One-Handed	125	3875	14568	20.07	22.72	11177	2895	86
Pyraminx	627	16230	51528	8.58	11.75	44841	14174	550
Square-1	254	5721	17282	44.94	1:17.95	17449	5686	246

Results
Map

Competition	Round	Place	Single	Average	Solves
3x3x3 Cube
Rubik's Dutch Nationals 2025	Semi Final	38	9.31	9.86	9.31	9.40	9.71	13.12	10.48
	Second round	41	8.33	10.08	8.81	10.84	8.33	11.70	10.59
	First round	43	8.12	10.63	13.30	10.79	10.36	8.12	10.73
Dutch Nationals 2024	Semi Final	72	10.82	11.74	12.05	11.30	17.03	11.88	10.82
	Second round	65	9.40	11.33	12.75	10.41	9.40	13.89	10.84
	First round	61	9.41	10.99	11.44	13.78	10.53	9.41	10.99
Dutch Winter South 2024	Second round	31	10.46	11.12	11.12	11.62	14.24	10.62	10.46
	First round	35	11.45	12.07	11.52	11.45	13.39	11.85	12.85
Dutch Open 2023	Second round	36	9.60	12.03	13.93	13.43	10.70	11.96	9.60
	First round	24	9.74	10.50	9.74	10.70	10.35	10.46	11.24
Capelle Cubing 2023	Second round	48	9.87	13.10	15.68	11.03	13.13	9.87	15.14
	First round	45	9.49	13.14	15.07	9.49	16.56	10.97	13.37
Assen Open 2018	Second round	13	10.23	12.23	13.77	10.23	12.33	13.48	10.89
	First round	11	9.45	11.91	9.45	12.75	10.43	16.67	12.55
Dutch Nationals 2017	Second round	17	10.60	12.23	11.56	12.15	17.00	12.98	10.60
	First round	18	11.30	12.22	12.24	12.07	13.37	12.36	11.30
Breda Open 2017	Second round	12	10.37	13.49	16.70	11.41	12.75	10.37	16.31
	First round	10	10.77	13.34	15.88	12.06	13.75	14.21	10.77
Zuidplas Open 2017	Second round	12	11.65	12.45	11.68	13.76	11.65	13.39	12.27
	First round	12	11.61	13.19	12.72	15.19	11.61	18.67	11.66
Dutch Nationals 2016	Second round	15	12.90	13.72	13.34	13.90	12.90	14.73	13.91
	First round	8	11.45	13.18	13.73	14.71	11.47	11.45	14.35
King's Open 2016	Final	8	11.79	14.43	11.79	14.25	15.11	13.94	18.12
	Second round	8	12.97	15.26	12.97	14.01	18.54	16.27	15.49
	First round	10	13.07	14.99	13.59	15.96	13.07	15.42	18.38
Tulip Open 2016	Second round	12	12.78	14.71	15.32	15.44	13.36	16.79	12.78
	First round	15	10.79	14.71	21.11	13.13	15.77	15.24	10.79
Dutch Nationals 2015	Second round	19	11.28	14.90	14.82	11.28	21.07	14.25	15.63
	First round	25	13.78	15.66	15.11	15.54	17.90	13.78	16.33
Dutch Nationals 2014	Second round	29	20.05	24.25	21.59	26.92	20.05	24.23	30.24
	First round	34	24.66	26.40	24.66	25.30	27.58	26.31	29.90
2x2x2 Cube
King's Open 2016	Final	16	5.57	5.81	5.57	5.92	5.87	6.98	5.65
Dutch Nationals 2015	Final	20	4.63	5.57	5.50	6.48	4.63	5.85	5.36
4x4x4 Cube
Rubik's Dutch Nationals 2025	First round	115	53.77	58.74	56.53	59.27	1:00.43	1:04.54	53.77
Dutch Nationals 2024	First round	93	47.42	54.16	1:17.25	47.42	51.74	1:03.14	47.61
Dutch Winter South 2024	First round	41	53.97	1:02.86	1:01.19	1:05.84	53.97	1:01.56	1:06.76
Assen Open 2018	Final	10	46.23	49.79	52.97	53.14	46.23	47.36	49.04
Dutch Nationals 2017	Final	18	52.73	55.78	52.73	52.77	54.39	1:05.72	1:00.17
Zuidplas Open 2017	Final	13	55.84	58.78	56.03	1:03.66	56.65	55.84	1:04.22
Dutch Nationals 2016	Final	16	57.62	1:05.91	1:04.29	1:07.75	1:18.79	57.62	1:05.68
King's Open 2016	Final	12	1:03.12	1:11.45	1:11.62	1:10.58	1:03.12	1:14.10	1:12.16
Tulip Open 2016	Final	12	1:04.86	1:15.73	1:04.86	1:09.85	1:25.95	1:19.79	1:17.54
Dutch Nationals 2015	Final	23	1:09.45	1:13.86	1:21.73	1:18.97	1:13.09	1:09.52	1:09.45
5x5x5 Cube
Rubik's Dutch Nationals 2025	First round	69	1:29.08	1:38.37	1:39.85	1:29.08	1:41.26	1:35.75	1:39.50
Dutch Nationals 2024	First round	69	1:31.77	1:36.80	1:36.44	1:31.77	1:36.36	1:37.72	1:37.59
Dutch Open 2023	Final	38	1:37.20	1:50.24	1:57.08	1:56.93	1:50.51	1:43.29	1:37.20
Capelle Cubing 2023	Final	36	1:46.48	1:53.39	1:55.40	1:55.40	1:46.48	2:02.13	1:49.38
Dutch Nationals 2017	Final	20	1:46.07	2:01.53	1:46.07	2:28.24	2:06.16	1:59.23	1:59.19
Zuidplas Open 2017	Final	8	1:33.62	1:48.82	1:49.95	1:48.34	1:48.16	1:33.62	2:12.24
Dutch Nationals 2016	Final	9	1:46.63	1:52.42	1:46.63	1:51.12	1:56.81	1:49.34	2:19.23
Tulip Open 2016	Final	10	1:56.88	2:13.11	2:26.80	1:56.88	2:12.84	2:30.35	1:59.68
Dutch Nationals 2015	Final	29	3:40.48		3:40.48	3:42.97
3x3x3 One-Handed
Rubik's Dutch Nationals 2025	First round	50	20.07	22.72	42.09	20.07	21.09	26.64	20.44
Dutch Nationals 2024	Final	76	21.88	28.53	23.17	34.42	30.29	32.12	21.88
Dutch Open 2023	Final	31	21.06	26.39	21.06	25.34	25.20	30.60	28.64
Capelle Cubing 2023	Final	42	28.99	31.53	31.38	32.89	28.99	41.77	30.33
Dutch Nationals 2017	Final	21	22.25	28.02	32.47	24.21	DNF	27.39	22.25
Breda Open 2017	Final	25	26.30	36.70	26.30	38.47	41.93	29.70	56.78
Zuidplas Open 2017	Final	10	26.28	26.96	27.01	27.02	26.28	26.84	28.52
Dutch Nationals 2016	Final	15	21.91	31.19	32.78	40.14	21.91	34.95	25.84
King's Open 2016	Final	7	23.95	29.63	37.76	23.95	31.05	28.65	29.19
Tulip Open 2016	Final	11	30.87	33.39	32.79	30.87	33.43	35.26	33.94
Dutch Nationals 2015	Final	14	24.07	31.31	36.92	44.18	25.50	24.07	31.51
Pyraminx
King's Open 2016	Final	16	12.08	14.63	14.10	16.16	13.62	18.65	12.08
Tulip Open 2016	Final	11	9.22	11.75	9.22	DNF	15.67	10.12	9.47
Dutch Nationals 2015	Final	22	8.58	14.57	17.09	15.36	27.50	8.58	11.26
Square-1
Assen Open 2018	Final	23	55.41		55.41	DNF
Dutch Nationals 2017	Final	22	44.94		1:06.14	44.94
Zuidplas Open 2017	Final	14	53.67	1:17.95	1:33.52	57.51	DNF	1:22.83	53.67