Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Japan → Shusei Tabuchi (田渕柊星)

People · Japan

Shusei Tabuchi (田渕柊星)

3×3 · top 7.2% of 284,439 all-time · competing since July 2006 · 2006TABU01

Shusei Tabuchi (田渕柊星) has been competing for 20 years. His best event is the 3×3: a personal-best single of 9.90, set at UT Open 2014, puts him in the top 7.2% of the 284,439 people who have ever been ranked in the event, and 312th in Japan. Until May 2007, no official 3×3 solve in the world had been that fast. Across 34 competitions since July 2006, he has put 509 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 82% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 1:05.87 in July 2006 to 9.90, an 85% improvement. Shusei has entered 34 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 7.2% of 284,439 all-time
9.90
signature single · UT Open 2014
509
official solves on the record
11%
solve-to-solve spread · steadier than 82% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×39.9014.67
top 7.2%312 / 3,329
2×23.715.37
top 22.8%292 / 1,021
4×456.801:01.47
top 32.9%324 / 667
Pyraminx8.189.40
top 37.7%374 / 688
Clock13.4617.67
top 41.6%149 / 263
3×3 one-handed27.9335.35
top 41.8%324 / 529
5×51:57.082:32.69
top 47.4%254 / 420
3×3 blindfolded2:47.16—
top 48.7%184 / 282
3×3 Fewest Moves52 moves—
early days — 3 solves182 / 201
3×3 Multi-Blind1 of 2 cubes · 12:34—
early days — 2 solves121 / 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

Tokyo Open 2006: 1:05.87Japanese Championship 2006: 44.52Japan Open 2007: 42.18Kawasaki Open 2008: 29.83Osaka Open 2008: 24.58Kashiwa Open 2008: 27.52Tokyo Open 2008: 23.77Japan Open 2008: 24.21Osaka Open 2009: 22.81Japan Open 2009: 22.30World Rubik's Cube Championship 2009: 19.08JRCA Kanto Winter 2010: 17.83Japan Open 2010: 18.47Kawasaki Open 2010: 26.1130th Anniversary MegaHouse Cup 2010: 16.69Asian Championship 2010: 15.90Matsudo Open 2010: 18.53UT Open 2010: 14.22Osaka 2011: 13.56Matsudo Spring 2011: 17.21World Rubik's Cube Championship 2011: 14.55Matsudo Autumn 2011: 15.16UT Open 2011: 16.33Tsukuba 2012: 11.05Matsudo Spring 2012: 15.97Rabbit and Turtle 2012: 14.96Kawasaki Open 2012: 13.78United States National Championships 2012: 13.27Kanto Open 2012: 14.61Cube Camp in Kanazawa 2012: 16.44Japan Open 2012: 15.69UT Open 2014: 9.909.901:05.8730 Jul 200623 Nov 2014

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-8 3×3 single — 7,931 people have one; it is 1.90 away.
  • A sub-3 2×2 single — 26,570 people have one; it is 0.71 away.

Targets move as he improves.