Personal Page

Chihi Koo

Name: Chihi Koo
Region: Japan
Competitions: 7
WCA ID: Chihi Koo2023KOOC02
Gender: Male
Career: 2023.04.01 - 2026.04.26
2025 Annual Summary

Current Personal Records

EventNRCRWRSingleAverageWRCRNRGoldSilverBronzeSolves/Attempts
3x3x3 Cube1684007110928.659.867479280011168/70
2x2x2 Cube853032121432.263.8712127343410540/40
3x3x3 One-Handed15951621392819.6322.0610277394212610/10
Pyraminx536232888853612.4415.0371662192214855/5

Sum of Ranks

 Sum of NRSum of CRSum of WR
Single4251120200471277
Average341692280344876
CompetitionRoundPlaceBestAverageDetail
Berkeley Spring 2026Semi Final29 8.65 10.37
10.43     8.65      9.89      11.04     10.80
Second round41 8.87 12.07
11.01     13.36     12.57     8.87      12.64
First round36 10.78 11.25
10.79     11.05     14.29     10.78     11.91
Bay Area Side Events Day 2025First round22 9.19 9.86
9.69      9.19      10.61     9.28      13.72
Bay Area Speedcubin' 63 2024Semi Final43 8.65 10.41
11.02     10.07     8.65      10.15     11.29
Second round55 9.34 11.53
13.54     10.34     11.61     9.34      12.64
First round55 10.41 11.67
11.08     11.13     10.41     13.11     12.80
BASC 61 - San Jose 2024Second round48 9.18 13.84
9.18      11.61     15.34     14.94     14.98
First round36 10.47 11.88
11.00     13.62     10.47     11.03     16.50
BASC 52 - Belmont 2023Second round56 11.83 13.37
14.55     12.80     11.83     12.77     17.74
First round61 11.63 13.63
12.53     11.63     13.85     15.45     14.52
Bay Area Speedcubin' 48 2023First round176 14.96 DNF
DNF       14.96     DNF       15.66     15.16
Bay Area Speedcubin' 43 2023Second round80 15.95 16.91
16.94     15.95     17.52     23.84     16.28
First round97 16.43 18.73
16.43     16.92     24.04     20.33     18.93
CompetitionRoundPlaceBestAverageDetail
Berkeley Spring 2026First round19 2.26 3.94
3.88      2.26      4.02      3.92      4.31
Bay Area Side Events Day 2025First round33 3.05 4.04
4.43      3.58      4.75      4.10      3.05
Bay Area Speedcubin' 63 2024Second round55 2.61 4.77
4.63      2.61      5.32      4.36      8.64
First round39 2.91 3.87
4.23      2.91      3.75      5.87      3.64
BASC 52 - Belmont 2023Second round46 4.21 5.87
5.00      6.25      4.21      7.86      6.35
First round46 2.67 4.77
2.67      6.20      6.80      4.06      4.04
Bay Area Speedcubin' 48 2023First round70 4.92 5.83
4.92      7.05      5.73      5.29      6.47
Bay Area Speedcubin' 43 2023First round72 3.30 5.73
6.28      4.99      6.54      3.30      5.91
CompetitionRoundPlaceBestAverageDetail
Berkeley Spring 2026First round40 23.04 26.49
23.04     25.62     28.62     25.22     33.70
Bay Area Side Events Day 2025First round36 19.63 22.06
32.62     23.52     20.88     19.63     21.77
CompetitionRoundPlaceBestAverageDetail
BASC 52 - Belmont 2023First round91 12.44 15.03
15.81     14.92     14.35     17.93     12.44
Berkeley Spring 2026
EventRoundPlaceBestAverageDetail
3x3x3 CubeSemi Final29 8.65 10.37
10.43     8.65      9.89      11.04     10.80
Second round41 8.87 12.07
11.01     13.36     12.57     8.87      12.64
First round36 10.78 11.25
10.79     11.05     14.29     10.78     11.91
2x2x2 CubeFirst round19 2.26 3.94
3.88      2.26      4.02      3.92      4.31
3x3x3 One-HandedFirst round40 23.04 26.49
23.04     25.62     28.62     25.22     33.70
 
Bay Area Side Events Day 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round22 9.19 9.86
9.69      9.19      10.61     9.28      13.72
2x2x2 CubeFirst round33 3.05 4.04
4.43      3.58      4.75      4.10      3.05
3x3x3 One-HandedFirst round36 19.63 22.06
32.62     23.52     20.88     19.63     21.77
 
Bay Area Speedcubin' 63 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeSemi Final43 8.65 10.41
11.02     10.07     8.65      10.15     11.29
Second round55 9.34 11.53
13.54     10.34     11.61     9.34      12.64
First round55 10.41 11.67
11.08     11.13     10.41     13.11     12.80
2x2x2 CubeSecond round55 2.61 4.77
4.63      2.61      5.32      4.36      8.64
First round39 2.91 3.87
4.23      2.91      3.75      5.87      3.64
 
BASC 61 - San Jose 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round48 9.18 13.84
9.18      11.61     15.34     14.94     14.98
First round36 10.47 11.88
11.00     13.62     10.47     11.03     16.50
 
BASC 52 - Belmont 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round56 11.83 13.37
14.55     12.80     11.83     12.77     17.74
First round61 11.63 13.63
12.53     11.63     13.85     15.45     14.52
2x2x2 CubeSecond round46 4.21 5.87
5.00      6.25      4.21      7.86      6.35
First round46 2.67 4.77
2.67      6.20      6.80      4.06      4.04
PyraminxFirst round91 12.44 15.03
15.81     14.92     14.35     17.93     12.44
 
Bay Area Speedcubin' 48 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round176 14.96 DNF
DNF       14.96     DNF       15.66     15.16
2x2x2 CubeFirst round70 4.92 5.83
4.92      7.05      5.73      5.29      6.47
 
Bay Area Speedcubin' 43 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round80 15.95 16.91
16.94     15.95     17.52     23.84     16.28
First round97 16.43 18.73
16.43     16.92     24.04     20.33     18.93
2x2x2 CubeFirst round72 3.30 5.73
6.28      4.99      6.54      3.30      5.91
No.DateNameRegionCity
72026-04-26Berkeley Spring 2026United StatesBerkeley, California
62025-02-23Bay Area Side Events Day 2025United StatesSan Jose, California
52024-06-22~23Bay Area Speedcubin' 63 2024United StatesAtherton, California
42024-04-27BASC 61 - San Jose 2024United StatesSan Jose, California
32023-10-01BASC 52 - Belmont 2023United StatesBelmont, California
22023-06-25Bay Area Speedcubin' 48 2023United StatesBerkeley, California
12023-04-01Bay Area Speedcubin' 43 2023United StatesSan Jose, California