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Yohei Oka (岡要平)

Pyraminx · top 1.0% of 129,321 all-time · competing since March 2006 · 2006OKAY01

Yohei Oka (岡要平) has been competing for 20 years. His best event is the Pyraminx: a personal-best single of 1.93, set at Japan Open 2011, puts him in the top 1.0% of the 129,321 people who have ever been ranked in the event, and 11th in Japan. Until July 2011, no official Pyraminx solve in the world had been that fast. Across 81 competitions since March 2006, he has put 2,033 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 10% around a typical one, steadier than 95% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 20.22 in March 2006 to 7.84, a 61% improvement. Yohei has entered 81 competitions, more competitions than 99% of everyone who has ever competed.

Pyraminx
best event — top 1.0% of 129,321 all-time
1.93
signature single · Japan Open 2011
2,033
official solves on the record
10%
solve-to-solve spread · steadier than 95% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
Pyraminx1.932.82
top 1.0%11 / 688
3×37.8410.30
top 2.5%105 / 3,329
5×51:15.611:22.34
top 15.8%99 / 420
4×443.1547.47
top 16.0%160 / 667
Clock9.4111.06
top 22.0%78 / 263
3×3 Fewest Moves34 moves—
early days — 3 solves86 / 201
2×24.065.30
top 27.3%336 / 1,021
Megaminx1:45.381:57.58
top 37.8%193 / 313
3×3 one-handed28.6929.44
top 43.6%337 / 529
Square-134.1142.22
early days — 3 solves173 / 245
3×3 blindfolded3:36.96—
early days — 3 solves219 / 282
Skewb11.69—
early days — 2 solves274 / 338
3×3 Multi-Blind2 of 3 cubes · 21:48—
early days — 2 solves114 / 128

Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.

The line so far

Osaka Rubik's Cube contest 2006: 20.22Tokyo Open 2006: 18.39Rubik's Cube OGU Open 2006: 15.11Osaka Rubik's Cube contest 2007: 11.43Japan Open 2007: 12.47Kanazawa Open 2007: 13.86Ibaraki competition 2007: 11.80Osaka Open 2008: 11.71Tokyo Open 2008: 12.36Japan Open 2008: 10.47Kanazawa Open 2008: 11.44Amagasaki Open 2009: 11.25Osaka Open 2009: 9.68JRCA Hokuriku 2009: 10.91JRCA Kansai Spring 2009: 9.84JRCA Kansai Summer 2009: 11.27Japan Open 2009: 10.66Toyama Open 2009: 12.38World Rubik's Cube Championship 2009: 11.52Doshisha Open 2009: 11.93JRCA Hokuriku Winter 2010: 11.43Japan Open 2010: 10.91JRCA Kansai Spring 2010: 10.90Cube Camp in Kanazawa 2010: 10.65JRCA Kansai Summer 2010: 12.06Ishikawa Gokoku Shinto Shrine Open 2010: 10.71Kansai New Year 2011: 10.84Osaka 2011: 13.00Matsudo Spring 2011: 11.41West Japan Big Cubes 2011: 10.78Japan Open 2011: 12.22Cube Camp in Kanazawa 2011: 10.25World Rubik's Cube Championship 2011: 11.88Kyotanabe Open 2011: 11.09Hokuriku Eve 2011: 10.81Kansai New Year 2012: 11.05Kansai Open 2012: 7.84Tokai Open 2012: 10.55Kyotanabe Open 2012: 9.55Kansai Star Festival 2012: 10.91Shanghai Summer 2012: 10.38Kanto Open 2012: 11.80Cube Camp in Kanazawa 2012: 9.44Hiroshima Open 2012: 9.65Japan Open 2012: 10.66East Osaka 2012: 9.06West Japan Big Cube 2012: 10.72Hokuriku Eve Open 2012: 10.90Kansai Open 2013: 11.59Japan Open 2013: 10.61Lake-Biwa Open 2013: 10.55Kansai Star Festival 2013: 10.56Cube Camp in Kanazawa 2013: 10.56East Osaka 2013: 11.11West Japan Big Cube 2013: 10.84Kansai Open 2014: 10.86JRCA Kansai Summer 2014: 10.97Cube Camp in Kanazawa 2014: 10.41West Japan Big Cube 2014: 10.05Asian Championship 2014: 10.58JRCA Kansai Fall 2014: 10.61Tokai Open 2014: 10.34JRCA Kansai Winter 2015: 11.05Tokyo Pyraminx Open 2015: 12.36JRCA Kansai Spring 2015: 10.06JRCA Kansai Summer 2015: 9.94Japan Open 2015: 10.55JRCA Kansai Fall 2015: 10.77JRCA Kansai Winter 2016: 10.09JRCA Kansai Summer 2016: 9.84Japan Open 2016: 10.34Kansai Small Cubes 2016: 10.71JRCA Kansai Winter 2017: 10.91Kansai Open 2017: 11.41JRCA Kansai Spring 2017: 10.96Cube Camp in Kanazawa 2017: 10.67Japan Open 2017: 10.33Kansai Summer 2018: 9.63WCA Asian Championship 2018: 9.727.8420.225 Mar 200617 Aug 2018

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

The story so far

Competitions

Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.

The circuit

The people whose scorecards keep turning up next to his.

Next targets

  • A sub-1 Pyraminx single — 49 people have one; it is 0.93 away.
  • A sub-6 3×3 single — 1,376 people have one; it is 1.84 away.

Targets move as he improves.