Personal Page

Jakka Chang

Name: Jakka Chang
Region: Netherlands
Competitions: 14
WCA ID: Jakka Chang2014CHAN17
Gender: Male
Career: 2014.09.28 - 2025.09.07
2024 Annual Summary

Current Personal Records

EventNRCRWRSingleAverageWRCRNRGoldSilverBronzeSolves/Attempts
3x3x3 Cube81208475598.129.866896184067155/155
2x2x2 Cube73317302600814.635.57386171110946110/10
4x4x4 Cube17442491515146.2349.7912231344714250/50
5x5x5 Cube124292197731:29.081:36.809161271811442/42
3x3x3 One-Handed12137511399720.0722.721074627948554/55
Pyraminx61115713496918.5811.75432831373354014/15
Square-125155391665144.941:17.951678855022427/9

Sum of Ranks

 Sum of NRNRSum of CRCRSum of WRWR
Single4526330114059785236108223353
Average340028084675652527503619536
3x3x3 Cube
CompetitionRoundPlaceBestAverageDetail
Dutch Nationals 2025Semi Final38 9.31 9.86
9.31      9.40      9.71      13.12     10.48
Second round41 8.33 10.08
8.81      10.84     8.33      11.70     10.59
First round43 8.12 10.63
13.30     10.79     10.36     8.12      10.73
Dutch Nationals 2024Semi Final72 10.82 11.74
12.05     11.30     17.03     11.88     10.82
Second round65 9.40 11.33
12.75     10.41     9.40      13.89     10.84
First round61 9.41 10.99
11.44     13.78     10.53     9.41      10.99
Dutch Winter South 2024Second round31 10.46 11.12
11.12     11.62     14.24     10.62     10.46
First round35 11.45 12.07
11.52     11.45     13.39     11.85     12.85
Dutch Open 2023Second round36 9.60 12.03
13.93     13.43     10.70     11.96     9.60
First round24 9.74 10.50
9.74      10.70     10.35     10.46     11.24
Capelle Cubing 2023Second round48 9.87 13.10
15.68     11.03     13.13     9.87      15.14
First round45 9.49 13.14
15.07     9.49      16.56     10.97     13.37
Assen Open 2018Second round13 10.23 12.23
13.77     10.23     12.33     13.48     10.89
First round11 9.45 11.91
9.45      12.75     10.43     16.67     12.55
Dutch Nationals 2017Second round17 10.60 12.23
11.56     12.15     17.00     12.98     10.60
First round18 11.30 12.22
12.24     12.07     13.37     12.36     11.30
Breda Open 2017Second round12 10.37 13.49
16.70     11.41     12.75     10.37     16.31
First round10 10.77 13.34
15.88     12.06     13.75     14.21     10.77
Zuidplas Open 2017Second round12 11.65 12.45
11.68     13.76     11.65     13.39     12.27
First round12 11.61 13.19
12.72     15.19     11.61     18.67     11.66
Dutch Nationals 2016Second round15 12.90 13.72
13.34     13.90     12.90     14.73     13.91
First round8 11.45 13.18
13.73     14.71     11.47     11.45     14.35
King's Open 2016Final8 11.79 14.43
11.79     14.25     15.11     13.94     18.12
Second round8 12.97 15.26
12.97     14.01     18.54     16.27     15.49
First round10 13.07 14.99
13.59     15.96     13.07     15.42     18.38
Tulip Open 2016Second round12 12.78 14.71
15.32     15.44     13.36     16.79     12.78
First round15 10.79 14.71
21.11     13.13     15.77     15.24     10.79
Dutch Nationals 2015Second round19 11.28 14.90
14.82     11.28     21.07     14.25     15.63
First round25 13.78 15.66
15.11     15.54     17.90     13.78     16.33
Dutch Nationals 2014Second round29 20.05 24.25
21.59     26.92     20.05     24.23     30.24
First round34 24.66 26.40
24.66     25.30     27.58     26.31     29.90
 
2x2x2 Cube
CompetitionRoundPlaceBestAverageDetail
King's Open 2016Final16 5.57 5.81
5.57      5.92      5.87      6.98      5.65
Dutch Nationals 2015Final20 4.63 5.57
5.50      6.48      4.63      5.85      5.36
 
4x4x4 Cube
CompetitionRoundPlaceBestAverageDetail
Dutch Nationals 2025First round115 53.77 58.74
56.53     59.27     1:00.43   1:04.54   53.77
Dutch Nationals 2024First round93 47.42 54.16
1:17.25   47.42     51.74     1:03.14   47.61
Dutch Winter South 2024First round41 53.97 1:02.86
1:01.19   1:05.84   53.97     1:01.56   1:06.76
Assen Open 2018Final10 46.23 49.79
52.97     53.14     46.23     47.36     49.04
Dutch Nationals 2017Final18 52.73 55.78
52.73     52.77     54.39     1:05.72   1:00.17
Zuidplas Open 2017Final13 55.84 58.78
56.03     1:03.66   56.65     55.84     1:04.22
Dutch Nationals 2016Final16 57.62 1:05.91
1:04.29   1:07.75   1:18.79   57.62     1:05.68
King's Open 2016Final12 1:03.12 1:11.45
1:11.62   1:10.58   1:03.12   1:14.10   1:12.16
Tulip Open 2016Final12 1:04.86 1:15.73
1:04.86   1:09.85   1:25.95   1:19.79   1:17.54
Dutch Nationals 2015Final23 1:09.45 1:13.86
1:21.73   1:18.97   1:13.09   1:09.52   1:09.45
 
5x5x5 Cube
CompetitionRoundPlaceBestAverageDetail
Dutch Nationals 2025First round69 1:29.08 1:38.37
1:39.85   1:29.08   1:41.26   1:35.75   1:39.50
Dutch Nationals 2024First round69 1:31.77 1:36.80
1:36.44   1:31.77   1:36.36   1:37.72   1:37.59
Dutch Open 2023Final38 1:37.20 1:50.24
1:57.08   1:56.93   1:50.51   1:43.29   1:37.20
Capelle Cubing 2023Final36 1:46.48 1:53.39
1:55.40   1:55.40   1:46.48   2:02.13   1:49.38
Dutch Nationals 2017Final20 1:46.07 2:01.53
1:46.07   2:28.24   2:06.16   1:59.23   1:59.19
Zuidplas Open 2017Final8 1:33.62 1:48.82
1:49.95   1:48.34   1:48.16   1:33.62   2:12.24
Dutch Nationals 2016Final9 1:46.63 1:52.42
1:46.63   1:51.12   1:56.81   1:49.34   2:19.23
Tulip Open 2016Final10 1:56.88 2:13.11
2:26.80   1:56.88   2:12.84   2:30.35   1:59.68
Dutch Nationals 2015Final29 3:40.48 
3:40.48   3:42.97
 
3x3x3 One-Handed
CompetitionRoundPlaceBestAverageDetail
Dutch Nationals 2025First round50 20.07 22.72
42.09     20.07     21.09     26.64     20.44
Dutch Nationals 2024Final76 21.88 28.53
23.17     34.42     30.29     32.12     21.88
Dutch Open 2023Final31 21.06 26.39
21.06     25.34     25.20     30.60     28.64
Capelle Cubing 2023Final42 28.99 31.53
31.38     32.89     28.99     41.77     30.33
Dutch Nationals 2017Final21 22.25 28.02
32.47     24.21     DNF       27.39     22.25
Breda Open 2017Final25 26.30 36.70
26.30     38.47     41.93     29.70     56.78
Zuidplas Open 2017Final10 26.28 26.96
27.01     27.02     26.28     26.84     28.52
Dutch Nationals 2016Final15 21.91 31.19
32.78     40.14     21.91     34.95     25.84
King's Open 2016Final7 23.95 29.63
37.76     23.95     31.05     28.65     29.19
Tulip Open 2016Final11 30.87 33.39
32.79     30.87     33.43     35.26     33.94
Dutch Nationals 2015Final14 24.07 31.31
36.92     44.18     25.50     24.07     31.51
 
Pyraminx
CompetitionRoundPlaceBestAverageDetail
King's Open 2016Final16 12.08 14.63
14.10     16.16     13.62     18.65     12.08
Tulip Open 2016Final11 9.22 11.75
9.22      DNF       15.67     10.12     9.47
Dutch Nationals 2015Final22 8.58 14.57
17.09     15.36     27.50     8.58      11.26
 
Square-1
CompetitionRoundPlaceBestAverageDetail
Assen Open 2018Final23 55.41 
55.41     DNF
Dutch Nationals 2017Final22 44.94 
1:06.14   44.94
Zuidplas Open 2017Final14 53.67 1:17.95
1:33.52   57.51     DNF       1:22.83   53.67
Dutch Nationals 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeSemi Final38 9.31 9.86
9.31      9.40      9.71      13.12     10.48
Second round41 8.33 10.08
8.81      10.84     8.33      11.70     10.59
First round43 8.12 10.63
13.30     10.79     10.36     8.12      10.73
4x4x4 CubeFirst round115 53.77 58.74
56.53     59.27     1:00.43   1:04.54   53.77
5x5x5 CubeFirst round69 1:29.08 1:38.37
1:39.85   1:29.08   1:41.26   1:35.75   1:39.50
3x3x3 One-HandedFirst round50 20.07 22.72
42.09     20.07     21.09     26.64     20.44
 
Dutch Nationals 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeSemi Final72 10.82 11.74
12.05     11.30     17.03     11.88     10.82
Second round65 9.40 11.33
12.75     10.41     9.40      13.89     10.84
First round61 9.41 10.99
11.44     13.78     10.53     9.41      10.99
4x4x4 CubeFirst round93 47.42 54.16
1:17.25   47.42     51.74     1:03.14   47.61
5x5x5 CubeFirst round69 1:31.77 1:36.80
1:36.44   1:31.77   1:36.36   1:37.72   1:37.59
3x3x3 One-HandedFinal76 21.88 28.53
23.17     34.42     30.29     32.12     21.88
 
Dutch Winter South 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round31 10.46 11.12
11.12     11.62     14.24     10.62     10.46
First round35 11.45 12.07
11.52     11.45     13.39     11.85     12.85
4x4x4 CubeFirst round41 53.97 1:02.86
1:01.19   1:05.84   53.97     1:01.56   1:06.76
 
Dutch Open 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round36 9.60 12.03
13.93     13.43     10.70     11.96     9.60
First round24 9.74 10.50
9.74      10.70     10.35     10.46     11.24
5x5x5 CubeFinal38 1:37.20 1:50.24
1:57.08   1:56.93   1:50.51   1:43.29   1:37.20
3x3x3 One-HandedFinal31 21.06 26.39
21.06     25.34     25.20     30.60     28.64
 
Capelle Cubing 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round48 9.87 13.10
15.68     11.03     13.13     9.87      15.14
First round45 9.49 13.14
15.07     9.49      16.56     10.97     13.37
5x5x5 CubeFinal36 1:46.48 1:53.39
1:55.40   1:55.40   1:46.48   2:02.13   1:49.38
3x3x3 One-HandedFinal42 28.99 31.53
31.38     32.89     28.99     41.77     30.33
 
Assen Open 2018
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round13 10.23 12.23
13.77     10.23     12.33     13.48     10.89
First round11 9.45 11.91
9.45      12.75     10.43     16.67     12.55
4x4x4 CubeFinal10 46.23 49.79
52.97     53.14     46.23     47.36     49.04
Square-1Final23 55.41 
55.41     DNF
 
Dutch Nationals 2017
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round17 10.60 12.23
11.56     12.15     17.00     12.98     10.60
First round18 11.30 12.22
12.24     12.07     13.37     12.36     11.30
4x4x4 CubeFinal18 52.73 55.78
52.73     52.77     54.39     1:05.72   1:00.17
5x5x5 CubeFinal20 1:46.07 2:01.53
1:46.07   2:28.24   2:06.16   1:59.23   1:59.19
3x3x3 One-HandedFinal21 22.25 28.02
32.47     24.21     DNF       27.39     22.25
Square-1Final22 44.94 
1:06.14   44.94
 
Breda Open 2017
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round12 10.37 13.49
16.70     11.41     12.75     10.37     16.31
First round10 10.77 13.34
15.88     12.06     13.75     14.21     10.77
3x3x3 One-HandedFinal25 26.30 36.70
26.30     38.47     41.93     29.70     56.78
 
Zuidplas Open 2017
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round12 11.65 12.45
11.68     13.76     11.65     13.39     12.27
First round12 11.61 13.19
12.72     15.19     11.61     18.67     11.66
4x4x4 CubeFinal13 55.84 58.78
56.03     1:03.66   56.65     55.84     1:04.22
5x5x5 CubeFinal8 1:33.62 1:48.82
1:49.95   1:48.34   1:48.16   1:33.62   2:12.24
3x3x3 One-HandedFinal10 26.28 26.96
27.01     27.02     26.28     26.84     28.52
Square-1Final14 53.67 1:17.95
1:33.52   57.51     DNF       1:22.83   53.67
 
Dutch Nationals 2016
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round15 12.90 13.72
13.34     13.90     12.90     14.73     13.91
First round8 11.45 13.18
13.73     14.71     11.47     11.45     14.35
4x4x4 CubeFinal16 57.62 1:05.91
1:04.29   1:07.75   1:18.79   57.62     1:05.68
5x5x5 CubeFinal9 1:46.63 1:52.42
1:46.63   1:51.12   1:56.81   1:49.34   2:19.23
3x3x3 One-HandedFinal15 21.91 31.19
32.78     40.14     21.91     34.95     25.84
 
King's Open 2016
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal8 11.79 14.43
11.79     14.25     15.11     13.94     18.12
Second round8 12.97 15.26
12.97     14.01     18.54     16.27     15.49
First round10 13.07 14.99
13.59     15.96     13.07     15.42     18.38
2x2x2 CubeFinal16 5.57 5.81
5.57      5.92      5.87      6.98      5.65
4x4x4 CubeFinal12 1:03.12 1:11.45
1:11.62   1:10.58   1:03.12   1:14.10   1:12.16
3x3x3 One-HandedFinal7 23.95 29.63
37.76     23.95     31.05     28.65     29.19
PyraminxFinal16 12.08 14.63
14.10     16.16     13.62     18.65     12.08
 
Tulip Open 2016
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round12 12.78 14.71
15.32     15.44     13.36     16.79     12.78
First round15 10.79 14.71
21.11     13.13     15.77     15.24     10.79
4x4x4 CubeFinal12 1:04.86 1:15.73
1:04.86   1:09.85   1:25.95   1:19.79   1:17.54
5x5x5 CubeFinal10 1:56.88 2:13.11
2:26.80   1:56.88   2:12.84   2:30.35   1:59.68
3x3x3 One-HandedFinal11 30.87 33.39
32.79     30.87     33.43     35.26     33.94
PyraminxFinal11 9.22 11.75
9.22      DNF       15.67     10.12     9.47
 
Dutch Nationals 2015
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round19 11.28 14.90
14.82     11.28     21.07     14.25     15.63
First round25 13.78 15.66
15.11     15.54     17.90     13.78     16.33
2x2x2 CubeFinal20 4.63 5.57
5.50      6.48      4.63      5.85      5.36
4x4x4 CubeFinal23 1:09.45 1:13.86
1:21.73   1:18.97   1:13.09   1:09.52   1:09.45
5x5x5 CubeFinal29 3:40.48 
3:40.48   3:42.97
3x3x3 One-HandedFinal14 24.07 31.31
36.92     44.18     25.50     24.07     31.51
PyraminxFinal22 8.58 14.57
17.09     15.36     27.50     8.58      11.26
 
Dutch Nationals 2014
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round29 20.05 24.25
21.59     26.92     20.05     24.23     30.24
First round34 24.66 26.40
24.66     25.30     27.58     26.31     29.90
No.DateNameRegionCity
142025-09-05~07Dutch Nationals 2025NetherlandsArnhem
132024-11-15~17Dutch Nationals 2024NetherlandsArnhem
122024-01-13Dutch Winter South 2024NetherlandsCapelle aan de IJssel
112023-06-03~04Dutch Open 2023NetherlandsArnhem
102023-05-14Capelle Cubing 2023NetherlandsCapelle aan de IJssel
92018-03-03Assen Open 2018NetherlandsAssen
82017-09-23Dutch Nationals 2017NetherlandsHoogland
72017-06-10Breda Open 2017NetherlandsUlvenhout
62017-04-15Zuidplas Open 2017NetherlandsNieuwerkerk ad IJssel
52016-10-01Dutch Nationals 2016NetherlandsAlkmaar
42016-05-21King's Open 2016NetherlandsBodegraven
32016-03-20Tulip Open 2016NetherlandsUtrecht
22015-09-27Dutch Nationals 2015NetherlandsAmstelveen
12014-09-28Dutch Nationals 2014NetherlandsAmstelveen