Personal Page

Seunghyun Ku (구승현)

Name: Seunghyun Ku (구승현)
Region: Republic of Korea
Competitions: 12
WCA ID: Seunghyun Ku (구승현)2022KUSE01
Gender: Female
Career: 2022.07.23 - 2025.11.30
2024 Annual Summary

Current Personal Records

EventNRCRWRSingleAverageWRCRNRGoldSilverBronzeSolves/Attempts
3x3x3 Cube579107782915711.2516.23494721870197125/25
2x2x2 Cube96718289625004.746.18503451525184215/15
4x4x4 Cube35660321717548.1851.6813904495330840/40
5x5x5 Cube178258878381:22.991:29.437094239216635/35
6x6x6 Cube91113635482:26.102:40.08378712249727/28
7x7x7 Cube6586125243:32.903:56.81299010138018/18
Clock32638101643017.7919.2413990326928615/15
Megaminx2523683141051:56.942:11.121340135082565/5
Pyraminx61214731555679.1417.25821292193285113/15
Skewb662126825383715.1120.75514341222863815/15

Sum of Ranks

 Sum of NRNRSum of CRCRSum of WRWR
Single5847386108926782938535426468
Average57624711086621079236974834659
3x3x3 Cube
CompetitionRoundPlaceBestAverageDetail
Rubisian Ice Break Iasi 2025Second round21 11.25 17.86
19.08     21.03     16.78     17.71     11.25
First round18 17.30 18.25
38.38     18.30     17.79     18.65     17.30
Rubisian Autumn Open Iasi 2025Second round19 14.21 16.23
14.21     18.76     18.78     14.57     15.35
First round21 14.80 16.88
17.80     14.80     17.47     20.73     15.36
Seoul Winter 2024First round142 17.17 19.31
17.17     18.52     19.48     19.93     20.14
 
2x2x2 Cube
CompetitionRoundPlaceBestAverageDetail
Rubisian Ice Break Iasi 2025First round19 5.22 6.39
6.39      8.17      5.22      5.85      6.93
Rubisian Autumn Open Iasi 2025Final19 5.32 6.18
5.64      5.32      6.67      6.40      6.50
Seoul Winter 2024First round115 4.74 6.65
7.08      12.77     4.74      6.46      6.42
 
4x4x4 Cube
CompetitionRoundPlaceBestAverageDetail
Rubisian Ice Break Iasi 2025Final8 50.70 51.68
50.70     57.53     50.79     52.50     51.76
First round10 48.18 54.50
1:02.78   50.13     48.18     1:11.10   50.59
Anyang Haseyo 2025First round59 51.05 56.03
1:00.75   51.21     56.13     51.05     1:06.41
Seoul Winter 2024First round84 52.61 1:00.10
1:00.94   59.97     52.61     1:00.59   59.75
Daegu Autumn 2024First round56 48.69 1:00.83
48.69     1:07.24   1:03.29   1:01.68   57.53
WCA World Championship 2023First round556 59.98 1:05.09
1:19.27   1:09.57   59.98     1:02.56   1:03.13
Daegu Spring 2023First round47 58.34 1:04.45
1:02.66   1:08.03   1:05.57   1:05.12   58.34
Seoul Summer 2022Final68 1:11.46 1:16.41
1:23.85   1:14.30   1:23.00   1:11.92   1:11.46
 
5x5x5 Cube
CompetitionRoundPlaceBestAverageDetail
Rubisian Ice Break Iasi 2025Final5 1:27.38 1:38.65
2:00.88   1:27.38   1:32.12   1:27.72   1:56.11
Bucharest Cubing November 2025Final9 1:26.81 1:29.43
1:29.92   1:28.68   1:29.68   1:26.81   1:31.53
First round10 1:22.99 1:31.41
1:34.29   1:22.99   1:39.24   1:32.08   1:27.86
Marginea Cubing 2025Final5 1:31.97 1:34.91
1:35.71   1:34.02   1:39.88   1:31.97   1:35.00
Please Big Cubes Korea 2025First round48 1:32.18 1:35.75
1:32.18   1:32.23   1:39.23   1:35.80   1:39.90
WCA World Championship 2023First round431 1:28.83 1:49.26
2:08.16   1:37.26   1:54.39   1:56.12   1:28.83
Daegu Spring 2023First round31 1:33.49 1:47.11
1:44.39   1:51.69   1:51.61   1:45.32   1:33.49
 
6x6x6 Cube
CompetitionRoundPlaceBestAverageDetail
Rubisian Ice Break Iasi 2025Final4 2:43.08 2:46.46
2:49.62   2:46.69   2:43.08
Bucharest Cubing November 2025Final6 2:30.52 2:45.00
2:34.34   2:30.52   3:10.15
Marginea Cubing 2025Final4 2:26.10 2:40.44
2:26.10   2:35.76   2:59.46
Please Big Cubes Korea 2025Second round27 2:31.70 2:40.08
2:55.68   2:32.86   2:31.70
First round30 2:34.13 2:42.11
2:49.97   2:34.13   2:42.23
Anyang Haseyo 2025First round29 2:41.46 2:50.74
2:41.46   2:58.14   2:52.63
Korean Championship 2023Final20 2:43.42 2:52.11
2:56.78   2:56.13   2:43.42
WCA World Championship 2023First round298 DNF 
DNF
Daegu Spring 2023Final21 2:54.64 3:17.25
3:52.66   2:54.64   3:04.45
Seoul Summer 2022Final34 3:44.40 4:05.19
4:12.43   3:44.40   4:18.74
 
7x7x7 Cube
CompetitionRoundPlaceBestAverageDetail
Bucharest Cubing November 2025Final5 3:32.90 3:56.81
4:02.46   4:15.06   3:32.90
Marginea Cubing 2025Final4 4:05.09 4:21.21
4:36.38   4:22.16   4:05.09
Please Big Cubes Korea 2025First round32 4:01.52 4:07.15
4:01.52   4:15.86   4:04.06
Anyang Haseyo 2025First round28 3:50.68 4:10.49
3:50.68   4:08.35   4:32.45
Seoul Winter 2024First round31 4:42.94 4:51.19
5:03.58   4:42.94   4:47.05
Korean Championship 2023Final20 4:27.36 4:34.84
4:42.48   4:34.69   4:27.36
 
Clock
CompetitionRoundPlaceBestAverageDetail
Rubisian Ice Break Iasi 2025First round13 17.79 19.24
19.12     20.42     18.18     21.03     17.79
Rubisian Autumn Open Iasi 2025Final18 28.97 32.10
34.17     33.55     32.96     28.97     29.78
First round22 29.45 31.55
31.31     36.92     31.27     29.45     32.06
 
Megaminx
CompetitionRoundPlaceBestAverageDetail
Daegu Autumn 2024First round47 1:56.94 2:11.12
2:16.28   1:59.81   2:24.43   1:56.94   2:17.27
 
Pyraminx
CompetitionRoundPlaceBestAverageDetail
Rubisian Ice Break Iasi 2025First round22 9.85 21.12
28.69     16.68     9.85      23.47     23.22
Rubisian Autumn Open Iasi 2025Final28 9.50 17.25
9.50      13.11     DNF       18.22     20.43
Marginea Cubing 2025Final24 9.14 17.59
DNF       17.61     18.90     9.14      16.26
 
Skewb
CompetitionRoundPlaceBestAverageDetail
Rubisian Ice Break Iasi 2025First round20 19.26 22.63
36.81     19.58     19.26     25.06     23.25
Rubisian Autumn Open Iasi 2025Final28 15.50 21.77
20.51     23.29     15.50     22.55     22.25
Anyang Haseyo 2025First round60 15.11 20.75
21.19     22.13     30.16     15.11     18.92
Rubisian Ice Break Iasi 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round21 11.25 17.86
19.08     21.03     16.78     17.71     11.25
First round18 17.30 18.25
38.38     18.30     17.79     18.65     17.30
2x2x2 CubeFirst round19 5.22 6.39
6.39      8.17      5.22      5.85      6.93
4x4x4 CubeFinal8 50.70 51.68
50.70     57.53     50.79     52.50     51.76
First round10 48.18 54.50
1:02.78   50.13     48.18     1:11.10   50.59
5x5x5 CubeFinal5 1:27.38 1:38.65
2:00.88   1:27.38   1:32.12   1:27.72   1:56.11
6x6x6 CubeFinal4 2:43.08 2:46.46
2:49.62   2:46.69   2:43.08
ClockFirst round13 17.79 19.24
19.12     20.42     18.18     21.03     17.79
PyraminxFirst round22 9.85 21.12
28.69     16.68     9.85      23.47     23.22
SkewbFirst round20 19.26 22.63
36.81     19.58     19.26     25.06     23.25
 
Bucharest Cubing November 2025
EventRoundPlaceBestAverageDetail
5x5x5 CubeFinal9 1:26.81 1:29.43
1:29.92   1:28.68   1:29.68   1:26.81   1:31.53
First round10 1:22.99 1:31.41
1:34.29   1:22.99   1:39.24   1:32.08   1:27.86
6x6x6 CubeFinal6 2:30.52 2:45.00
2:34.34   2:30.52   3:10.15
7x7x7 CubeFinal5 3:32.90 3:56.81
4:02.46   4:15.06   3:32.90
 
Rubisian Autumn Open Iasi 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round19 14.21 16.23
14.21     18.76     18.78     14.57     15.35
First round21 14.80 16.88
17.80     14.80     17.47     20.73     15.36
2x2x2 CubeFinal19 5.32 6.18
5.64      5.32      6.67      6.40      6.50
ClockFinal18 28.97 32.10
34.17     33.55     32.96     28.97     29.78
First round22 29.45 31.55
31.31     36.92     31.27     29.45     32.06
PyraminxFinal28 9.50 17.25
9.50      13.11     DNF       18.22     20.43
SkewbFinal28 15.50 21.77
20.51     23.29     15.50     22.55     22.25
 
Marginea Cubing 2025
EventRoundPlaceBestAverageDetail
5x5x5 CubeFinal5 1:31.97 1:34.91
1:35.71   1:34.02   1:39.88   1:31.97   1:35.00
6x6x6 CubeFinal4 2:26.10 2:40.44
2:26.10   2:35.76   2:59.46
7x7x7 CubeFinal4 4:05.09 4:21.21
4:36.38   4:22.16   4:05.09
PyraminxFinal24 9.14 17.59
DNF       17.61     18.90     9.14      16.26
 
Please Big Cubes Korea 2025
EventRoundPlaceBestAverageDetail
5x5x5 CubeFirst round48 1:32.18 1:35.75
1:32.18   1:32.23   1:39.23   1:35.80   1:39.90
6x6x6 CubeSecond round27 2:31.70 2:40.08
2:55.68   2:32.86   2:31.70
First round30 2:34.13 2:42.11
2:49.97   2:34.13   2:42.23
7x7x7 CubeFirst round32 4:01.52 4:07.15
4:01.52   4:15.86   4:04.06
 
Anyang Haseyo 2025
EventRoundPlaceBestAverageDetail
4x4x4 CubeFirst round59 51.05 56.03
1:00.75   51.21     56.13     51.05     1:06.41
6x6x6 CubeFirst round29 2:41.46 2:50.74
2:41.46   2:58.14   2:52.63
7x7x7 CubeFirst round28 3:50.68 4:10.49
3:50.68   4:08.35   4:32.45
SkewbFirst round60 15.11 20.75
21.19     22.13     30.16     15.11     18.92
 
Seoul Winter 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round142 17.17 19.31
17.17     18.52     19.48     19.93     20.14
2x2x2 CubeFirst round115 4.74 6.65
7.08      12.77     4.74      6.46      6.42
4x4x4 CubeFirst round84 52.61 1:00.10
1:00.94   59.97     52.61     1:00.59   59.75
7x7x7 CubeFirst round31 4:42.94 4:51.19
5:03.58   4:42.94   4:47.05
 
Daegu Autumn 2024
EventRoundPlaceBestAverageDetail
4x4x4 CubeFirst round56 48.69 1:00.83
48.69     1:07.24   1:03.29   1:01.68   57.53
MegaminxFirst round47 1:56.94 2:11.12
2:16.28   1:59.81   2:24.43   1:56.94   2:17.27
 
Korean Championship 2023
EventRoundPlaceBestAverageDetail
6x6x6 CubeFinal20 2:43.42 2:52.11
2:56.78   2:56.13   2:43.42
7x7x7 CubeFinal20 4:27.36 4:34.84
4:42.48   4:34.69   4:27.36
 
WCA World Championship 2023
EventRoundPlaceBestAverageDetail
4x4x4 CubeFirst round556 59.98 1:05.09
1:19.27   1:09.57   59.98     1:02.56   1:03.13
5x5x5 CubeFirst round431 1:28.83 1:49.26
2:08.16   1:37.26   1:54.39   1:56.12   1:28.83
6x6x6 CubeFirst round298 DNF 
DNF
 
Daegu Spring 2023
EventRoundPlaceBestAverageDetail
4x4x4 CubeFirst round47 58.34 1:04.45
1:02.66   1:08.03   1:05.57   1:05.12   58.34
5x5x5 CubeFirst round31 1:33.49 1:47.11
1:44.39   1:51.69   1:51.61   1:45.32   1:33.49
6x6x6 CubeFinal21 2:54.64 3:17.25
3:52.66   2:54.64   3:04.45
 
Seoul Summer 2022
EventRoundPlaceBestAverageDetail
4x4x4 CubeFinal68 1:11.46 1:16.41
1:23.85   1:14.30   1:23.00   1:11.92   1:11.46
6x6x6 CubeFinal34 3:44.40 4:05.19
4:12.43   3:44.40   4:18.74
No.DateNameRegionCity
122025-11-29~30Rubisian Ice Break Iasi 2025RomaniaIasi
112025-11-15Bucharest Cubing November 2025RomaniaBucuresti
102025-10-18Rubisian Autumn Open Iasi 2025RomaniaIasi
92025-10-04Marginea Cubing 2025RomaniaMarginea, Suceava
82025-05-10Please Big Cubes Korea 2025Republic of Korea서울특별시 (Seoul)
72025-02-08~09Anyang Haseyo 2025Republic of Korea경기도 안양시 (Anyang-si, Gyeonggi-do)
62024-12-14Seoul Winter 2024Republic of Korea서울특별시 (Seoul)
52024-10-26~27Daegu Autumn 2024Republic of Korea대구광역시 (Daegu)
42023-12-15~17Korean Championship 2023Republic of Korea대전광역시 (Daejeon)
32023-08-12~15WCA World Championship 2023Republic of Korea인천광역시 (Incheon)
22023-04-15~16Daegu Spring 2023Republic of Korea대구광역시 (Daegu)
12022-07-23~24Seoul Summer 2022Republic of Korea서울특별시 (Seoul)