Kou Oobatake (大畠功)
4x4x4 Blindfolded
WCA ID: 2007OOBA01
Country: Japan 
Active since: 2007
7:38.70
Best Result22
Competitions1
Best Position10
Official Solves22
Rounds#901
Single WR#247
Single CR
#28
Single NR#0
Average WR#0
Average CR
#0
Average NR9
Podiums06/06/2026
Last ResultEvents
3x3x3 Cube
2x2x2 Cube
4x4x4 Cube
5x5x5 Cube
6x6x6 Cube
7x7x7 Cube
3x3x3 Blindfolded
3x3x3 Fewest Moves
3x3x3 One-Handed
Clock
Megaminx
Pyraminx
Skewb
Square-1
4x4x4 Blindfolded
5x5x5 Blindfolded
3x3x3 Multi-Blind
3x3x3 With Feet
Magic
Master Magic
Competitions
Shimonoseki Summer 2026
Japan Championship 2026
Kansai BLD Summer 2026
Hiroshima Spring 2026
Katano Spring 2026
Shimonoseki 2025
Katano Summer 2025
Kansai Odd and BLD 2025
Hiroshima Winter 2024
Otsu Biwako Autumn 2023
Rubik's WCA World Championship 2023
Hiroshima Spring 2023
Ota Blind Winter 2022
Yoga Summer A 2022
Ota Blind Summer 2022
Tokai Winter PM 2021
Ayase 2020
Hiroshima Open 2019
Japan Championship 2019
Kyoto Open 2019
Yono Summer 2019
Cube Camp in Kanazawa 2019
WCA World Championship 2019
Tokai Open 2019
Reiwa Anniversary 2019
Kansai Open 2019
Please Be Quiet Tokyo 2019
JRCA Kansai Winter 2019
Japan Championship 2018
Saitama 2018
Kansai Big Cube 2018
Hiroshima 2018
WCA Asian Championship 2018
Cube Camp in Kanazawa 2018
Kansai Summer 2018
Kyoto Open 2018
Kansai Open 2018
Kobe Open 2018
Kyushu Open 2017
Japan Open 2017
Taiwan Championship 2017
Kansai Big Cube 2017
Kansai Fall 2017
Yokohama 2017
Cube Camp in Kanazawa 2017
World Rubik's Cube Championship 2017
JRCA Kansai Spring 2017
Meguro 2017
Kansai Open 2017
JRCA Kansai Winter 2017
Kyushu Open 2016
Kansai Small Cubes 2016
Japan Open 2016
JRCA Kansai Fall 2016
Cube Camp in Kanazawa 2016
JRCA Kansai Summer 2016
Kanto Summer 2016
JRCA Kansai Spring 2016
Cherry Blossom Viewing 2016
Kanto Spring 2016
Kansai Open 2016
JRCA Kansai Winter 2016
Kyushu Open 2015
JRCA Kansai Fall 2015
Japan Open 2015
Cube Camp in Kanazawa 2015
JRCA Kansai Summer 2015
World Rubik's Cube Championship 2015
Kawasaki Summer 2015
JRCA Kansai Spring 2015
Kansai Open 2015
Tokyo Pyraminx Open 2015
Waseda Brain Challenge 2015
JRCA Kansai Winter 2015
Kyushu Open 2014
JRCA Kansai Fall 2014
Asian Championship 2014
Sapporo Open 2014
West Japan Big Cube 2014
Cube Camp in Kanazawa 2014
JRCA Kansai Summer 2014
JRCA Kansai Spring 2014
Cherry Blossom Viewing 2014
Kansai Open 2014
Kanto Open 2014
JRCA Kansai Winter 2014
Kyushu Open 2013
West Japan Big Cube 2013
East Osaka 2013
Cube Camp in Kanazawa 2013
Kansai Star Festival 2013
Japan Open 2013
Cherry Blossom Viewing Open 2013
Kansai Open 2013
Hokuriku Eve Open 2012
West Japan Big Cube 2012
East Osaka 2012
Japan Open 2012
Hiroshima Open 2012
Cube Camp in Kanazawa 2012
Kanto Open 2012
Kansai Star Festival 2012
Kyotanabe Open 2012
Tokai Open 2012
Kansai Open 2012
Kyushu Open 2012
Kansai New Year 2012
Hokuriku Eve 2011
Kyotanabe Open 2011
Cube Camp in Kanazawa 2011
Japan Open 2011
Osaka Rubik's Cube contest 2007
Event Progression
Event PB Progression
Position Progression
Result Distribution
Competition Results Table
| Competition | Date | Round | Single | Result | Position |
|---|---|---|---|---|---|
| Kansai BLD Summer 2026 | 06/06/2026 | First round | 12:05.00 | 12:05.00 | #13 |
| Kansai Odd and BLD 2025 | 15/06/2025 | Final | — | — | #19 |
| Ota Blind Winter 2022 | 18/12/2022 | Final | 9:34.71 | 9:34.71 | #8 |
| Yoga Summer A 2022 | 21/08/2022 | Final | — | — | #7 |
| Japan Championship 2019 | 02/11/2019 | Final | — | — | #16 |
| Cube Camp in Kanazawa 2019 | 10/08/2019 | Final | 8:16.79 | 8:16.79 | #3 |
| WCA World Championship 2019 | 11/07/2019 | Final | 7:38.70 | 7:38.70 | #29 |
| Kansai Open 2019 | 20/04/2019 | Final | — | — | #6 |
| Please Be Quiet Tokyo 2019 | 31/03/2019 | Final | 7:51.90 | 7:51.90 | #3 |
| Kansai Big Cube 2017 | 25/11/2017 | Final | — | — | #6 |
| Cube Camp in Kanazawa 2017 | 11/08/2017 | Final | — | — | #4 |
| World Rubik's Cube Championship 2017 | 13/07/2017 | Final | — | — | #41 |
| Meguro 2017 | 05/05/2017 | Final | 9:53.65 | 9:53.65 | #3 |
| Kansai Open 2017 | 19/03/2017 | Final | 9:45.37 | 9:45.37 | #3 |
| Japan Open 2016 | 09/10/2016 | Final | 9:29.78 | 9:29.78 | #2 |
| Cube Camp in Kanazawa 2016 | 05/08/2016 | Final | — | — | #3 |
| Kansai Open 2016 | 19/03/2016 | Final | 10:21.00 | 10:21.00 | #1 |
| Japan Open 2015 | 21/09/2015 | Final | — | — | #7 |
| Cube Camp in Kanazawa 2015 | 21/08/2015 | Final | — | — | #4 |
| JRCA Kansai Summer 2015 | 25/07/2015 | Final | — | — | #1 |
| World Rubik's Cube Championship 2015 | 17/07/2015 | Final | — | — | #17 |
| Kawasaki Summer 2015 | 12/07/2015 | Final | — | — | #2 |
Round Breakdown
| Competition | Date | Round | Single | Result | Position |
|---|---|---|---|---|---|
| Kansai BLD Summer 2026 | 06/06/2026 | First round | 12:05.00 | 12:05.00 | #13 |
| Kansai Odd and BLD 2025 | 15/06/2025 | Final | — | — | #19 |
| Ota Blind Winter 2022 | 18/12/2022 | Final | 9:34.71 | 9:34.71 | #8 |
| Yoga Summer A 2022 | 21/08/2022 | Final | — | — | #7 |
| Japan Championship 2019 | 02/11/2019 | Final | — | — | #16 |
| Cube Camp in Kanazawa 2019 | 10/08/2019 | Final | 8:16.79 | 8:16.79 | #3 |
| WCA World Championship 2019 | 11/07/2019 | Final | 7:38.70 | 7:38.70 | #29 |
| Kansai Open 2019 | 20/04/2019 | Final | — | — | #6 |
| Please Be Quiet Tokyo 2019 | 31/03/2019 | Final | 7:51.90 | 7:51.90 | #3 |
| Kansai Big Cube 2017 | 25/11/2017 | Final | — | — | #6 |
| Cube Camp in Kanazawa 2017 | 11/08/2017 | Final | — | — | #4 |
| World Rubik's Cube Championship 2017 | 13/07/2017 | Final | — | — | #41 |
| Meguro 2017 | 05/05/2017 | Final | 9:53.65 | 9:53.65 | #3 |
| Kansai Open 2017 | 19/03/2017 | Final | 9:45.37 | 9:45.37 | #3 |
| Japan Open 2016 | 09/10/2016 | Final | 9:29.78 | 9:29.78 | #2 |
| Cube Camp in Kanazawa 2016 | 05/08/2016 | Final | — | — | #3 |
| Kansai Open 2016 | 19/03/2016 | Final | 10:21.00 | 10:21.00 | #1 |
| Japan Open 2015 | 21/09/2015 | Final | — | — | #7 |
| Cube Camp in Kanazawa 2015 | 21/08/2015 | Final | — | — | #4 |
| JRCA Kansai Summer 2015 | 25/07/2015 | Final | — | — | #1 |
| World Rubik's Cube Championship 2015 | 17/07/2015 | Final | — | — | #17 |
| Kawasaki Summer 2015 | 12/07/2015 | Final | — | — | #2 |
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