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People → Japan → Kosuke Watarai (渡會康介)

People · Japan

Kosuke Watarai (渡會康介)

Pyraminx · top 11.0% of 129,321 all-time · competing since November 2014 · 2014WATA03

Kosuke Watarai (渡會康介) has been competing for 12 years. His best event is the Pyraminx: a personal-best single of 4.64, set at Tokyo Pyraminx Returns 2018, puts him in the top 11.0% of the 129,321 people who have ever been ranked in the event, and 131st in Japan. Across 16 competitions since November 2014, he has put 246 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 15% around a typical one; 81% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 17.43 in November 2014 to 13.11, a 25% improvement. Kosuke has entered 16 competitions, more competitions than 96% of everyone who has ever competed.

Pyraminx
best event — top 11.0% of 129,321 all-time
4.64
signature single · Tokyo Pyraminx Returns 2018
246
official solves on the record
15%
solve-to-solve spread · wider than 81% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
Pyraminx4.647.37
top 11.0%131 / 688
Megaminx1:10.801:16.50
top 16.1%108 / 313
3×313.1115.70
top 17.8%750 / 3,329
4×450.061:03.24
top 24.8%256 / 667
2×25.906.75
top 49.8%615 / 1,021
5×52:16.682:25.32
top 59.1%304 / 420
3×3 blindfolded7:54.72
early days — 1 solve278 / 282

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

JRCA Kansai Fall 2014: 17.43JRCA Kansai Winter 2015: 18.06Kansai Open 2015: 16.97JRCA Kansai Spring 2015: 15.19JRCA Kansai Summer 2015: 13.27UT Open 2015: 15.41Kanto Spring 2016: 16.28Kawasaki Spring 2016: 13.11Kanto Summer 2016: 13.55JRCA Kansai Fall 2016: 14.80Yokohama 2017: 14.58Suginami Open 2017: 13.94Japan Open 2017: 16.32Tokyo Pyraminx Returns 2018: 15.6613.1118.0630 Nov 201422 Sep 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-4 Pyraminx single — 9,892 people have one; it is 0.64 away.
  • A sub-1:00 Megaminx single — 3,483 people have one; it is 10.80 away.

Targets move as he improves.