Personal Page

Hajin Jeon (전하진)

Name: Hajin Jeon (전하진)
Region: Republic of Korea
Competitions: 10
WCA ID: Hajin Jeon (전하진)2018JEON01
Gender: Male
Career: 2018.01.26 - 2026.02.22
2025 Annual Summary

Current Personal Records

EventNRCRWRSingleAverageWRCRNRGoldSilverBronzeSolves/Attempts
3x3x3 Cube94148544447.318.4425819255273/75
2x2x2 Cube2947522661.281.9478218714260/60
4x4x4 Cube871251363232.7136.2127169596650/50
5x5x5 Cube5671920701:00.191:10.1226299327140/40
6x6x6 Cube6983024522:09.972:19.832450837719/9
7x7x7 Cube97132239813:58.804:00.4833761139859/9
3x3x3 Blindfolded6497829891:39.181:53.3617005133311/17
3x3x3 One-Handed1062059568115.0819.536527247613715/15
Clock111126352668.5510.084974115110214/17
Megaminx104140051151:10.151:17.76485513419825/25
Pyraminx3242517312.184.91425512607044/45
Skewb61108044163.284.7624766474745/45
Square-173984436315.8421.66434210117416/17

Sum of Ranks

 Sum of NRSum of CRSum of WR
Single12921942967546
Average10251518150086

Overall Medal Collection

GoldSilverBronze
2
3x3x3 Cube
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final13 7.92 9.13
7.92      9.11      8.72      9.55      9.74
First round11 7.70 9.05
8.23      11.19     9.33      7.70      9.60
Korean Championship 2025First round52 7.96 10.06
10.93     9.21      10.04     12.86     7.96
Korea Open 2025Final16 8.25 11.14
11.93     9.97      8.25      11.52     12.12
Semi Final14 7.86 8.44
7.95      7.86      8.72      9.76      8.64
Second round11 7.31 8.76
13.21     8.81      7.31      8.05      9.41
First round35 8.40 9.84
13.27     9.92      9.68      9.92      8.40
Daegu Cold Winter 2024Final12 10.03 12.85
10.14     15.00     13.42     17.83     10.03
Second round12 8.66 9.36
8.97      9.38      8.66      9.74      11.64
First round21 10.32 10.64
10.32     11.02     10.66     10.57     10.70
WCA World Championship 2023First round430 9.78 10.97
9.78      11.38     11.44     13.24     10.09
Daegu Spring 2023First round38 11.69 12.37
12.27     11.69     11.98     12.87     DNF
Korean Championship 2019First round92 17.37 20.42
21.90     20.78     18.59     DNF       17.37
CWR Fall 2018First round37 19.94 22.17
19.94     21.33     23.43     23.73     21.76
Cubedu Korea 2018First round103 25.65 30.17
35.11     25.65     33.01     29.02     28.47
 
2x2x2 Cube
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final3 1.28 1.94
2.95      2.26      1.56      1.28      1.99
Korean Championship 2025First round11 1.33 2.64
2.02      3.56      2.35      5.49      1.33
Korea Open 2025Final8 1.55 2.32
1.79      2.25      2.91      1.55      4.84
Second round16 1.81 2.68
3.11      6.16      2.39      2.53      1.81
First round5 1.55 2.25
1.55      2.19      2.29      4.80      2.26
Daegu Autumn 2024Final3 1.62 2.00
1.62      2.28      1.65      2.08      2.30
First round6 1.59 2.37
1.95      2.96      2.88      1.59      2.27
Daegu Cold Winter 2024First round23 1.95 4.32
4.26      5.76      2.95      6.87      1.95
WCA World Championship 2023First round249 3.48 3.97
3.78      3.95      4.19      3.48      4.22
Daegu Spring 2023Final6 2.38 3.53
3.78      3.44      3.38      7.93      2.38
Korean Championship 2019First round65 3.28 6.72
3.28      8.42      8.57      5.53      6.22
CWR Fall 2018Final9 5.40 6.32
7.30      5.83      5.40      7.74      5.82
 
4x4x4 Cube
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final22 36.05 39.02
59.81     36.97     36.05     40.44     39.66
Korean Championship 2025First round48 34.00 41.33
34.00     38.62     40.90     48.13     44.46
Korea Open 2025Second round42 35.99 40.15
41.87     39.62     44.08     35.99     38.97
First round24 32.71 36.21
33.73     32.71     38.28     36.88     38.02
Daegu Autumn 2024First round13 38.00 40.45
41.69     39.11     38.00     40.55     44.06
WCA World Championship 2023First round401 41.56 48.79
52.50     48.87     48.20     49.31     41.56
Daegu Spring 2023First round46 49.36 1:01.72
1:05.03   49.36     55.80     1:10.54   1:04.33
Korean Championship 2019First round70 1:16.78 1:25.47
1:27.45   1:17.43   1:31.52   1:32.83   1:16.78
CWR Fall 2018Final28 1:22.37 1:30.63
1:38.65   1:47.27   1:30.77   1:22.48   1:22.37
Cubedu Korea 2018Final69 1:41.39 1:52.09
1:55.59   1:43.43   2:04.13   1:57.24   1:41.39
 
5x5x5 Cube
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final17 1:00.19 1:10.12
1:00.19   1:06.91   1:21.19   1:09.76   1:13.68
Korea Open 2025Second round35 1:11.06 1:14.45
1:11.06   1:21.89   1:17.48   1:11.64   1:14.24
First round37 1:10.58 1:16.28
1:20.32   1:19.93   1:11.82   1:17.10   1:10.58
Daegu Cold Winter 2024Second round35 1:25.50 1:28.38
1:31.11   1:25.50   1:32.14   1:26.06   1:27.97
First round38 1:17.96 1:30.17
1:39.95   1:20.05   1:17.96   1:44.90   1:30.52
WCA World Championship 2023First round410 1:35.53 1:43.23
2:05.25   1:35.53   1:47.42   1:44.62   1:37.64
Daegu Spring 2023First round35 1:46.32 1:52.27
1:55.85   1:58.59   1:53.89   1:46.32   1:47.06
Korean Championship 2019First round51 2:48.70 2:53.69
2:59.21   2:50.95   3:50.07   2:50.91   2:48.70
 
6x6x6 Cube
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final14 2:09.97 2:19.83
2:26.34   2:23.18   2:09.97
Korea Open 2025First round38 2:32.60 2:40.89
2:50.06   2:40.00   2:32.60
Daegu Cold Winter 2024First round36 2:50.70 2:56.26
2:55.28   2:50.70   3:02.81
 
7x7x7 Cube
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final16 3:58.80 4:00.48
4:00.49   3:58.80   4:02.16
Korea Open 2025First round44 4:43.81 4:51.52
5:04.16   4:46.59   4:43.81
Daegu Cold Winter 2024First round36 4:20.32 4:36.39
4:42.57   4:46.27   4:20.32
 
3x3x3 Blindfolded
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final9 1:44.66 1:53.36
2:00.00   1:52.88   1:47.19   DNF       1:44.66
Korea Open 2025Final9 1:39.18 DNF
1:39.18   DNF       1:46.19
First round11 1:59.56 DNF
DNF       1:59.56   DNF
Daegu Cold Winter 2024Final9 1:50.08 DNF
1:50.08   DNF       DNF
First round10 2:00.52 2:26.63
2:21.89   2:57.47   2:00.52
 
3x3x3 One-Handed
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final15 17.10 19.53
17.10     21.03     18.10     21.19     19.45
Korea Open 2025Second round33 15.08 19.87
21.66     20.16     20.29     19.15     15.08
First round40 16.49 20.21
20.95     20.82     19.87     16.49     19.94
 
Clock
CompetitionRoundPlaceBestAverageDetail
Korea Open 2025Second round40 8.63 10.08
10.83     10.15     10.28     8.63      9.81
First round49 8.55 10.46
DNF       11.27     8.55      10.48     9.62
Korean Championship 2019Final26 DNF 
DNF       DNF
CWR Fall 2018Final13 18.15 22.67
21.25     18.15     23.19     23.56     24.13
 
Megaminx
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final20 1:10.15 1:17.76
1:10.15   1:17.96   1:22.50   1:19.64   1:15.69
Korea Open 2025First round37 1:16.30 1:18.19
1:19.81   1:18.35   1:16.30   1:16.41   1:26.88
Daegu Autumn 2024First round30 1:20.92 1:34.42
1:40.93   1:20.92   1:30.77   1:46.66   1:31.57
WCA World Championship 2023First round238 1:16.30 1:23.17
1:40.13   1:26.14   1:18.60   1:24.76   1:16.30
Daegu Spring 2023Final21 1:18.95 1:35.77
1:40.79   1:33.85   1:43.19   1:18.95   1:32.68
 
Pyraminx
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final9 3.42 5.28
7.05      3.42      4.12      4.95      6.76
Korean Championship 2025First round25 2.18 5.70
6.64      3.41      8.42      7.04      2.18
Korea Open 2025Second round29 4.48 6.21
5.69      6.81      6.13      7.26      4.48
First round16 3.73 4.91
5.65      4.03      5.05      9.59      3.73
Daegu Autumn 2024First round19 5.77 6.13
7.56      5.84      6.59      5.77      5.97
WCA World Championship 2023First round218 4.41 6.27
DNF       4.41      7.14      6.00      5.66
Korean Championship 2019First round23 5.39 8.12
5.39      8.72      8.49      8.57      7.31
CWR Fall 2018Final14 6.69 8.11
10.31     6.69      7.82      8.93      7.59
Cubedu Korea 2018Final30 6.89 11.64
6.89      12.79     14.72     10.28     11.84
 
Skewb
CompetitionRoundPlaceBestAverageDetail
Cube Camp in Jeju 2026Final6 4.31 4.76
4.90      4.31      4.98      6.84      4.41
Korean Championship 2025First round15 3.94 5.02
5.57      3.94      5.28      6.24      4.20
Korea Open 2025Second round21 5.03 6.06
7.60      5.83      6.29      5.03      6.07
First round17 3.28 5.41
7.81      6.02      4.35      3.28      5.86
Daegu Autumn 2024First round16 4.93 6.11
8.17      5.21      6.51      6.60      4.93
WCA World Championship 2023First round209 4.97 6.98
6.65      4.97      7.58      10.13     6.72
Daegu Spring 2023Final10 4.12 5.80
4.96      11.57     6.02      4.12      6.41
Korean Championship 2019First round30 7.14 10.00
12.78     13.25     8.23      9.00      7.14
Cubedu Korea 2018Final44 12.41 16.06
17.21     18.42     18.83     12.55     12.41
 
Square-1
CompetitionRoundPlaceBestAverageDetail
Korean Championship 2025First round17 24.31 28.92
24.31     27.02     30.53     29.21     DNF
Korea Open 2025First round24 15.84 21.66
27.97     21.14     22.94     15.84     20.90
Daegu Autumn 2024First round18 17.33 26.21
26.31     25.51     26.81     29.39     17.33
Korean Championship 2019Final25 1:04.15 
1:04.15   1:16.67
Cube Camp in Jeju 2026
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal13 7.92 9.13
7.92      9.11      8.72      9.55      9.74
First round11 7.70 9.05
8.23      11.19     9.33      7.70      9.60
2x2x2 CubeFinal3 1.28 1.94
2.95      2.26      1.56      1.28      1.99
4x4x4 CubeFinal22 36.05 39.02
59.81     36.97     36.05     40.44     39.66
5x5x5 CubeFinal17 1:00.19 1:10.12
1:00.19   1:06.91   1:21.19   1:09.76   1:13.68
6x6x6 CubeFinal14 2:09.97 2:19.83
2:26.34   2:23.18   2:09.97
7x7x7 CubeFinal16 3:58.80 4:00.48
4:00.49   3:58.80   4:02.16
3x3x3 BlindfoldedFinal9 1:44.66 1:53.36
2:00.00   1:52.88   1:47.19   DNF       1:44.66
3x3x3 One-HandedFinal15 17.10 19.53
17.10     21.03     18.10     21.19     19.45
MegaminxFinal20 1:10.15 1:17.76
1:10.15   1:17.96   1:22.50   1:19.64   1:15.69
PyraminxFinal9 3.42 5.28
7.05      3.42      4.12      4.95      6.76
SkewbFinal6 4.31 4.76
4.90      4.31      4.98      6.84      4.41
 
Korean Championship 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round52 7.96 10.06
10.93     9.21      10.04     12.86     7.96
2x2x2 CubeFirst round11 1.33 2.64
2.02      3.56      2.35      5.49      1.33
4x4x4 CubeFirst round48 34.00 41.33
34.00     38.62     40.90     48.13     44.46
PyraminxFirst round25 2.18 5.70
6.64      3.41      8.42      7.04      2.18
SkewbFirst round15 3.94 5.02
5.57      3.94      5.28      6.24      4.20
Square-1First round17 24.31 28.92
24.31     27.02     30.53     29.21     DNF
 
Korea Open 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal16 8.25 11.14
11.93     9.97      8.25      11.52     12.12
Semi Final14 7.86 8.44
7.95      7.86      8.72      9.76      8.64
Second round11 7.31 8.76
13.21     8.81      7.31      8.05      9.41
First round35 8.40 9.84
13.27     9.92      9.68      9.92      8.40
2x2x2 CubeFinal8 1.55 2.32
1.79      2.25      2.91      1.55      4.84
Second round16 1.81 2.68
3.11      6.16      2.39      2.53      1.81
First round5 1.55 2.25
1.55      2.19      2.29      4.80      2.26
4x4x4 CubeSecond round42 35.99 40.15
41.87     39.62     44.08     35.99     38.97
First round24 32.71 36.21
33.73     32.71     38.28     36.88     38.02
5x5x5 CubeSecond round35 1:11.06 1:14.45
1:11.06   1:21.89   1:17.48   1:11.64   1:14.24
First round37 1:10.58 1:16.28
1:20.32   1:19.93   1:11.82   1:17.10   1:10.58
6x6x6 CubeFirst round38 2:32.60 2:40.89
2:50.06   2:40.00   2:32.60
7x7x7 CubeFirst round44 4:43.81 4:51.52
5:04.16   4:46.59   4:43.81
3x3x3 BlindfoldedFinal9 1:39.18 DNF
1:39.18   DNF       1:46.19
First round11 1:59.56 DNF
DNF       1:59.56   DNF
3x3x3 One-HandedSecond round33 15.08 19.87
21.66     20.16     20.29     19.15     15.08
First round40 16.49 20.21
20.95     20.82     19.87     16.49     19.94
ClockSecond round40 8.63 10.08
10.83     10.15     10.28     8.63      9.81
First round49 8.55 10.46
DNF       11.27     8.55      10.48     9.62
MegaminxFirst round37 1:16.30 1:18.19
1:19.81   1:18.35   1:16.30   1:16.41   1:26.88
PyraminxSecond round29 4.48 6.21
5.69      6.81      6.13      7.26      4.48
First round16 3.73 4.91
5.65      4.03      5.05      9.59      3.73
SkewbSecond round21 5.03 6.06
7.60      5.83      6.29      5.03      6.07
First round17 3.28 5.41
7.81      6.02      4.35      3.28      5.86
Square-1First round24 15.84 21.66
27.97     21.14     22.94     15.84     20.90
 
Daegu Autumn 2024
EventRoundPlaceBestAverageDetail
2x2x2 CubeFinal3 1.62 2.00
1.62      2.28      1.65      2.08      2.30
First round6 1.59 2.37
1.95      2.96      2.88      1.59      2.27
4x4x4 CubeFirst round13 38.00 40.45
41.69     39.11     38.00     40.55     44.06
MegaminxFirst round30 1:20.92 1:34.42
1:40.93   1:20.92   1:30.77   1:46.66   1:31.57
PyraminxFirst round19 5.77 6.13
7.56      5.84      6.59      5.77      5.97
SkewbFirst round16 4.93 6.11
8.17      5.21      6.51      6.60      4.93
Square-1First round18 17.33 26.21
26.31     25.51     26.81     29.39     17.33
 
Daegu Cold Winter 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal12 10.03 12.85
10.14     15.00     13.42     17.83     10.03
Second round12 8.66 9.36
8.97      9.38      8.66      9.74      11.64
First round21 10.32 10.64
10.32     11.02     10.66     10.57     10.70
2x2x2 CubeFirst round23 1.95 4.32
4.26      5.76      2.95      6.87      1.95
5x5x5 CubeSecond round35 1:25.50 1:28.38
1:31.11   1:25.50   1:32.14   1:26.06   1:27.97
First round38 1:17.96 1:30.17
1:39.95   1:20.05   1:17.96   1:44.90   1:30.52
6x6x6 CubeFirst round36 2:50.70 2:56.26
2:55.28   2:50.70   3:02.81
7x7x7 CubeFirst round36 4:20.32 4:36.39
4:42.57   4:46.27   4:20.32
3x3x3 BlindfoldedFinal9 1:50.08 DNF
1:50.08   DNF       DNF
First round10 2:00.52 2:26.63
2:21.89   2:57.47   2:00.52
 
WCA World Championship 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round430 9.78 10.97
9.78      11.38     11.44     13.24     10.09
2x2x2 CubeFirst round249 3.48 3.97
3.78      3.95      4.19      3.48      4.22
4x4x4 CubeFirst round401 41.56 48.79
52.50     48.87     48.20     49.31     41.56
5x5x5 CubeFirst round410 1:35.53 1:43.23
2:05.25   1:35.53   1:47.42   1:44.62   1:37.64
MegaminxFirst round238 1:16.30 1:23.17
1:40.13   1:26.14   1:18.60   1:24.76   1:16.30
PyraminxFirst round218 4.41 6.27
DNF       4.41      7.14      6.00      5.66
SkewbFirst round209 4.97 6.98
6.65      4.97      7.58      10.13     6.72
 
Daegu Spring 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round38 11.69 12.37
12.27     11.69     11.98     12.87     DNF
2x2x2 CubeFinal6 2.38 3.53
3.78      3.44      3.38      7.93      2.38
4x4x4 CubeFirst round46 49.36 1:01.72
1:05.03   49.36     55.80     1:10.54   1:04.33
5x5x5 CubeFirst round35 1:46.32 1:52.27
1:55.85   1:58.59   1:53.89   1:46.32   1:47.06
MegaminxFinal21 1:18.95 1:35.77
1:40.79   1:33.85   1:43.19   1:18.95   1:32.68
SkewbFinal10 4.12 5.80
4.96      11.57     6.02      4.12      6.41
 
Korean Championship 2019
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round92 17.37 20.42
21.90     20.78     18.59     DNF       17.37
2x2x2 CubeFirst round65 3.28 6.72
3.28      8.42      8.57      5.53      6.22
4x4x4 CubeFirst round70 1:16.78 1:25.47
1:27.45   1:17.43   1:31.52   1:32.83   1:16.78
5x5x5 CubeFirst round51 2:48.70 2:53.69
2:59.21   2:50.95   3:50.07   2:50.91   2:48.70
ClockFinal26 DNF 
DNF       DNF
PyraminxFirst round23 5.39 8.12
5.39      8.72      8.49      8.57      7.31
SkewbFirst round30 7.14 10.00
12.78     13.25     8.23      9.00      7.14
Square-1Final25 1:04.15 
1:04.15   1:16.67
 
CWR Fall 2018
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round37 19.94 22.17
19.94     21.33     23.43     23.73     21.76
2x2x2 CubeFinal9 5.40 6.32
7.30      5.83      5.40      7.74      5.82
4x4x4 CubeFinal28 1:22.37 1:30.63
1:38.65   1:47.27   1:30.77   1:22.48   1:22.37
ClockFinal13 18.15 22.67
21.25     18.15     23.19     23.56     24.13
PyraminxFinal14 6.69 8.11
10.31     6.69      7.82      8.93      7.59
 
Cubedu Korea 2018
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round103 25.65 30.17
35.11     25.65     33.01     29.02     28.47
4x4x4 CubeFinal69 1:41.39 1:52.09
1:55.59   1:43.43   2:04.13   1:57.24   1:41.39
PyraminxFinal30 6.89 11.64
6.89      12.79     14.72     10.28     11.84
SkewbFinal44 12.41 16.06
17.21     18.42     18.83     12.55     12.41
No.DateNameRegionCity
102026-02-21~22Cube Camp in Jeju 2026Republic of Korea제주특별자치도 제주시 (Jeju-si, Jeju-do)
92025-12-27~28Korean Championship 2025Republic of Korea서울특별시 (Seoul)
82025-08-15~17Korea Open 2025Republic of Korea경기도 수원시 (Suwon-si, Gyeonggi-do)
72024-10-26~27Daegu Autumn 2024Republic of Korea대구광역시 (Daegu)
62024-02-03~04Daegu Cold Winter 2024Republic of Korea대구광역시 (Daegu)
52023-08-12~15WCA World Championship 2023Republic of Korea인천광역시 (Incheon)
42023-04-15~16Daegu Spring 2023Republic of Korea대구광역시 (Daegu)
32019-08-16~18Korean Championship 2019Republic of Korea서울특별시 (Seoul)
22018-09-29CWR Fall 2018Republic of Korea광주광역시 (Gwangju)
12018-01-26Cubedu Korea 2018Republic of Korea서울특별시 (Seoul)