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YoonSung Choi (최윤성)

Name: YoonSung Choi (최윤성)
Region: Republic of Korea
Competitions: 12
WCA ID: YoonSung Choi (최윤성)2024CHOI36
Gender: Male
Career: 2024.10.26 - 2026.01.18
2025 Annual Summary

Current Personal Records

EventNRCRWRSingleAverageWRCRNRGoldSilverBronzeSolves/Attempts
3x3x3 Cube65104431436.907.9115425543387/90
2x2x2 Cube2745321811.272.17117428722177/80
4x4x4 Cube1672630751737.9542.776728239316740/40
5x5x5 Cube219314695231:27.111:36.099318311221418/20
6x6x6 Cube154198264322:57.673:06.82609919041486/6
3x3x3 Fewest Moves4667327143337.672133539366/6
3x3x3 One-Handed152096349.8814.2413104732945/45
Megaminx178252891981:30.001:41.489124250417915/15
Pyraminx2034688174445.197.7815360445121020/20
Skewb1833401132615.147.008824246614910/10
Square-11762210965125.6229.187413174313215/15

Sum of Ranks

 Sum of NRSum of CRSum of WR
Single250538075143267
Average202229407105360

Overall Medal Collection

GoldSilverBronze
1
3x3x3 Cube
CompetitionRoundPlaceBestAverageDetail
Seoul Winter 2026Semi Final26 7.01 9.79
9.17      11.68     7.01      9.65      10.55
Second round10 6.90 7.91
6.90      8.38      8.15      7.19      10.62
First round12 8.40 8.81
8.69      8.41      8.40      9.33      12.42
Korean Championship 2025Second round26 7.13 9.26
9.05      7.13      8.64      10.09     10.71
First round37 7.19 9.43
10.98     9.43      10.01     8.85      7.19
Uhseo Osong 2025First round38 7.63 10.98
11.83     12.13     10.09     11.01     7.63
We Laugh Pohanghang 2025First round20 8.41 9.84
8.41      12.63     8.60      10.32     10.60
Korea Open 2025Semi Final28 7.30 9.34
8.37      9.09      10.55     10.70     7.30
Second round53 8.41 10.75
12.45     9.78      12.66     10.03     8.41
First round32 8.32 9.79
10.06     8.32      9.89      9.43      DNF
Suwon Summer 2025First round20 8.78 9.64
10.18     9.09      11.08     9.64      8.78
Daejeon Spring 2025Second round24 7.92 10.22
7.92      12.93     7.94      9.99      12.72
First round40 10.32 11.12
11.13     10.32     11.00     DNF       11.23
Happy Suseong 2025Second round60 12.29 14.15
12.29     13.89     14.96     14.39     14.18
First round57 9.52 11.73
12.66     12.04     11.72     9.52      11.44
Seoul Winter 2024First round108 11.64 15.68
19.29     13.70     14.04     11.64     DNF
Hamchang Winter 2024Second round43 11.69 13.07
12.58     13.99     11.69     14.16     12.64
First round35 8.91 12.61
12.58     8.91      13.12     12.14     15.17
 
2x2x2 Cube
CompetitionRoundPlaceBestAverageDetail
Seoul Winter 2026Final3 1.40 2.17
1.40      2.78      2.65      1.91      1.96
First round16 1.36 3.01
1.36      1.95      3.21      3.88      4.34
Korean Championship 2025First round23 1.27 3.29
1.27      2.56      4.58      4.06      3.24
Uhseo Osong 2025Final5 1.73 2.51
1.79      3.47      1.73      5.14      2.28
First round6 1.56 2.36
2.37      3.00      2.88      1.56      1.84
Korea Open 2025Final10 1.95 2.66
1.95      3.53      3.39      2.17      2.43
Second round12 1.39 2.42
2.80      1.70      4.84      1.39      2.76
First round15 1.36 2.90
1.36      3.13      3.24      2.98      2.60
Suwon Summer 2025Final6 2.00 2.67
2.54      3.64      2.37      3.11      2.00
First round6 1.60 2.38
2.56      2.12      2.45      1.60      2.64
Daejeon Spring 2025Final10 2.13 3.18
DNF       3.40      3.28      2.13      2.86
Second round10 2.11 3.05
2.11      2.84      3.52      4.94      2.79
First round6 2.29 2.79
2.69      6.67      2.29      3.14      2.54
Happy Suseong 2025First round142 2.79 DNF
2.79      DNF       DNF       3.74      3.90
Seoul Winter 2024First round47 3.35 4.45
4.76      3.35      6.62      4.85      3.73
Daegu Autumn 2024First round34 3.02 4.35
3.54      4.60      3.02      5.17      4.90
 
4x4x4 Cube
CompetitionRoundPlaceBestAverageDetail
Seoul Winter 2026First round50 40.29 48.52
1:17.02   47.03     40.29     49.73     48.81
Uhseo Osong 2025First round29 39.66 42.77
57.45     43.64     42.00     39.66     42.68
Korea Open 2025Second round85 37.95 50.87
54.63     37.95     50.09     47.89     56.80
First round71 43.40 46.89
46.79     44.38     49.50     43.40     58.84
Suwon Summer 2025First round44 46.44 49.28
48.73     46.44     47.27     51.84     55.83
Happy Suseong 2025First round79 53.29 56.02
55.05     57.01     56.00     53.29     1:01.11
Seoul Winter 2024First round100 1:06.49 1:08.08
1:06.68   1:06.83   1:06.49   1:10.73   1:12.45
Daegu Autumn 2024First round67 58.46 1:12.88
1:42.31   1:13.44   58.46     1:09.85   1:15.36
 
5x5x5 Cube
CompetitionRoundPlaceBestAverageDetail
Seoul Winter 2026First round55 1:27.11 1:36.09
1:33.94   1:44.56   1:27.11   1:38.10   1:36.22
Korea Open 2025First round94 1:29.52 1:48.48
DNF       1:42.35   1:56.19   1:46.89   1:29.52
Happy Suseong 2025First round85 1:52.85 2:08.32
2:26.79   1:53.82   DNF       1:52.85   2:04.36
Hamchang Winter 2024First round54 1:55.87 2:12.37
2:01.20   2:21.81   2:14.10   1:55.87   2:23.63
 
6x6x6 Cube
CompetitionRoundPlaceBestAverageDetail
Seoul Winter 2026First round48 2:57.67 3:06.82
3:11.93   2:57.67   3:10.85
We Laugh Pohanghang 2025First round36 3:14.83 3:21.23
3:24.88   3:23.97   3:14.83
 
3x3x3 Fewest Moves
CompetitionRoundPlaceBestAverageDetail
FMC Busan 2025Final8 33 37.67
42        38        33
First round13 36 40.00
45        36        39
 
3x3x3 One-Handed
CompetitionRoundPlaceBestAverageDetail
Korean Championship 2025First round13 12.98 15.52
17.67     20.76     15.31     12.98     13.58
Uhseo Osong 2025Final15 13.91 20.11
25.09     15.29     22.49     13.91     22.56
First round7 11.71 14.28
13.64     14.51     15.53     14.70     11.71
We Laugh Pohanghang 2025Final7 12.99 14.24
13.64     18.62     13.12     15.97     12.99
First round9 12.06 15.02
13.36     17.61     14.87     16.82     12.06
Korea Open 2025Second round20 9.88 17.91
26.76     13.75     22.88     17.10     9.88
First round16 13.80 17.81
13.80     17.36     19.74     17.94     18.13
Hamchang Winter 2024Second round31 21.19 26.72
21.19     30.50     26.60     39.03     23.05
First round29 21.88 24.31
29.09     21.88     25.54     25.04     22.35
 
Megaminx
CompetitionRoundPlaceBestAverageDetail
We Laugh Pohanghang 2025First round33 1:42.43 1:58.73
1:58.18   1:53.42   2:04.81   2:04.59   1:42.43
Suwon Summer 2025First round34 1:30.00 1:41.48
1:51.29   1:41.03   1:32.11   1:30.00   1:52.39
Hamchang Winter 2024First round36 1:55.34 2:09.51
2:50.67   1:55.34   2:03.36   2:09.22   2:15.94
 
Pyraminx
CompetitionRoundPlaceBestAverageDetail
Korea Open 2025First round90 6.39 10.64
18.41     10.32     9.54      12.07     6.39
Suwon Summer 2025First round29 5.19 7.78
6.31      5.19      8.42      12.41     8.62
Hamchang Winter 2024Second round31 7.11 9.50
8.14      7.11      12.32     10.47     9.90
First round25 6.18 7.81
8.31      7.00      8.12      11.71     6.18
 
Skewb
CompetitionRoundPlaceBestAverageDetail
We Laugh Pohanghang 2025First round14 5.14 7.00
5.76      5.14      9.17      6.07      12.79
Happy Suseong 2025First round54 8.43 11.41
21.38     13.66     8.43      10.26     10.31
 
Square-1
CompetitionRoundPlaceBestAverageDetail
Daejeon Spring 2025First round31 29.73 36.76
40.45     33.00     54.89     29.73     36.84
Happy Suseong 2025Second round29 25.62 29.18
37.93     28.78     25.62     31.25     27.52
First round36 29.19 36.50
36.28     39.76     36.27     36.96     29.19
Seoul Winter 2026
EventRoundPlaceBestAverageDetail
3x3x3 CubeSemi Final26 7.01 9.79
9.17      11.68     7.01      9.65      10.55
Second round10 6.90 7.91
6.90      8.38      8.15      7.19      10.62
First round12 8.40 8.81
8.69      8.41      8.40      9.33      12.42
2x2x2 CubeFinal3 1.40 2.17
1.40      2.78      2.65      1.91      1.96
First round16 1.36 3.01
1.36      1.95      3.21      3.88      4.34
4x4x4 CubeFirst round50 40.29 48.52
1:17.02   47.03     40.29     49.73     48.81
5x5x5 CubeFirst round55 1:27.11 1:36.09
1:33.94   1:44.56   1:27.11   1:38.10   1:36.22
6x6x6 CubeFirst round48 2:57.67 3:06.82
3:11.93   2:57.67   3:10.85
 
Korean Championship 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round26 7.13 9.26
9.05      7.13      8.64      10.09     10.71
First round37 7.19 9.43
10.98     9.43      10.01     8.85      7.19
2x2x2 CubeFirst round23 1.27 3.29
1.27      2.56      4.58      4.06      3.24
3x3x3 One-HandedFirst round13 12.98 15.52
17.67     20.76     15.31     12.98     13.58
 
Uhseo Osong 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round38 7.63 10.98
11.83     12.13     10.09     11.01     7.63
2x2x2 CubeFinal5 1.73 2.51
1.79      3.47      1.73      5.14      2.28
First round6 1.56 2.36
2.37      3.00      2.88      1.56      1.84
4x4x4 CubeFirst round29 39.66 42.77
57.45     43.64     42.00     39.66     42.68
3x3x3 One-HandedFinal15 13.91 20.11
25.09     15.29     22.49     13.91     22.56
First round7 11.71 14.28
13.64     14.51     15.53     14.70     11.71
 
We Laugh Pohanghang 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round20 8.41 9.84
8.41      12.63     8.60      10.32     10.60
6x6x6 CubeFirst round36 3:14.83 3:21.23
3:24.88   3:23.97   3:14.83
3x3x3 One-HandedFinal7 12.99 14.24
13.64     18.62     13.12     15.97     12.99
First round9 12.06 15.02
13.36     17.61     14.87     16.82     12.06
MegaminxFirst round33 1:42.43 1:58.73
1:58.18   1:53.42   2:04.81   2:04.59   1:42.43
SkewbFirst round14 5.14 7.00
5.76      5.14      9.17      6.07      12.79
 
Korea Open 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeSemi Final28 7.30 9.34
8.37      9.09      10.55     10.70     7.30
Second round53 8.41 10.75
12.45     9.78      12.66     10.03     8.41
First round32 8.32 9.79
10.06     8.32      9.89      9.43      DNF
2x2x2 CubeFinal10 1.95 2.66
1.95      3.53      3.39      2.17      2.43
Second round12 1.39 2.42
2.80      1.70      4.84      1.39      2.76
First round15 1.36 2.90
1.36      3.13      3.24      2.98      2.60
4x4x4 CubeSecond round85 37.95 50.87
54.63     37.95     50.09     47.89     56.80
First round71 43.40 46.89
46.79     44.38     49.50     43.40     58.84
5x5x5 CubeFirst round94 1:29.52 1:48.48
DNF       1:42.35   1:56.19   1:46.89   1:29.52
3x3x3 One-HandedSecond round20 9.88 17.91
26.76     13.75     22.88     17.10     9.88
First round16 13.80 17.81
13.80     17.36     19.74     17.94     18.13
PyraminxFirst round90 6.39 10.64
18.41     10.32     9.54      12.07     6.39
 
Suwon Summer 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round20 8.78 9.64
10.18     9.09      11.08     9.64      8.78
2x2x2 CubeFinal6 2.00 2.67
2.54      3.64      2.37      3.11      2.00
First round6 1.60 2.38
2.56      2.12      2.45      1.60      2.64
4x4x4 CubeFirst round44 46.44 49.28
48.73     46.44     47.27     51.84     55.83
MegaminxFirst round34 1:30.00 1:41.48
1:51.29   1:41.03   1:32.11   1:30.00   1:52.39
PyraminxFirst round29 5.19 7.78
6.31      5.19      8.42      12.41     8.62
 
Daejeon Spring 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round24 7.92 10.22
7.92      12.93     7.94      9.99      12.72
First round40 10.32 11.12
11.13     10.32     11.00     DNF       11.23
2x2x2 CubeFinal10 2.13 3.18
DNF       3.40      3.28      2.13      2.86
Second round10 2.11 3.05
2.11      2.84      3.52      4.94      2.79
First round6 2.29 2.79
2.69      6.67      2.29      3.14      2.54
Square-1First round31 29.73 36.76
40.45     33.00     54.89     29.73     36.84
 
FMC Busan 2025
EventRoundPlaceBestAverageDetail
3x3x3 Fewest MovesFinal8 33 37.67
42        38        33
First round13 36 40.00
45        36        39
 
Happy Suseong 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round60 12.29 14.15
12.29     13.89     14.96     14.39     14.18
First round57 9.52 11.73
12.66     12.04     11.72     9.52      11.44
2x2x2 CubeFirst round142 2.79 DNF
2.79      DNF       DNF       3.74      3.90
4x4x4 CubeFirst round79 53.29 56.02
55.05     57.01     56.00     53.29     1:01.11
5x5x5 CubeFirst round85 1:52.85 2:08.32
2:26.79   1:53.82   DNF       1:52.85   2:04.36
SkewbFirst round54 8.43 11.41
21.38     13.66     8.43      10.26     10.31
Square-1Second round29 25.62 29.18
37.93     28.78     25.62     31.25     27.52
First round36 29.19 36.50
36.28     39.76     36.27     36.96     29.19
 
Seoul Winter 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round108 11.64 15.68
19.29     13.70     14.04     11.64     DNF
2x2x2 CubeFirst round47 3.35 4.45
4.76      3.35      6.62      4.85      3.73
4x4x4 CubeFirst round100 1:06.49 1:08.08
1:06.68   1:06.83   1:06.49   1:10.73   1:12.45
 
Hamchang Winter 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round43 11.69 13.07
12.58     13.99     11.69     14.16     12.64
First round35 8.91 12.61
12.58     8.91      13.12     12.14     15.17
5x5x5 CubeFirst round54 1:55.87 2:12.37
2:01.20   2:21.81   2:14.10   1:55.87   2:23.63
3x3x3 One-HandedSecond round31 21.19 26.72
21.19     30.50     26.60     39.03     23.05
First round29 21.88 24.31
29.09     21.88     25.54     25.04     22.35
MegaminxFirst round36 1:55.34 2:09.51
2:50.67   1:55.34   2:03.36   2:09.22   2:15.94
PyraminxSecond round31 7.11 9.50
8.14      7.11      12.32     10.47     9.90
First round25 6.18 7.81
8.31      7.00      8.12      11.71     6.18
 
Daegu Autumn 2024
EventRoundPlaceBestAverageDetail
2x2x2 CubeFirst round34 3.02 4.35
3.54      4.60      3.02      5.17      4.90
4x4x4 CubeFirst round67 58.46 1:12.88
1:42.31   1:13.44   58.46     1:09.85   1:15.36
No.DateNameRegionCity
122026-01-17~18Seoul Winter 2026Republic of Korea서울특별시 (Seoul)
112025-12-27~28Korean Championship 2025Republic of Korea서울특별시 (Seoul)
102025-11-15Uhseo Osong 2025Republic of Korea충청북도 청주시 (Cheongju-si, Chungcheongbuk-do)
92025-09-14We Laugh Pohanghang 2025Republic of Korea경상북도 포항시 (Pohang-si, Gyeongsangbuk-do)
82025-08-15~17Korea Open 2025Republic of Korea경기도 수원시 (Suwon-si, Gyeonggi-do)
72025-07-13Suwon Summer 2025Republic of Korea경기도 수원시 (Suwon-si, Gyeonggi-do)
62025-05-25Daejeon Spring 2025Republic of Korea대전광역시 (Daejeon)
52025-03-02FMC Busan 2025Republic of Korea부산광역시 (Busan)
42025-01-18~19Happy Suseong 2025Republic of Korea대구광역시 (Daegu)
32024-12-14Seoul Winter 2024Republic of Korea서울특별시 (Seoul)
22024-11-23~24Hamchang Winter 2024Republic of Korea경상북도 상주시 (Sangju-si, Gyeongsangbuk-do)
12024-10-26~27Daegu Autumn 2024Republic of Korea대구광역시 (Daegu)