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People → Japan → Yumu Tabuchi (田渕雄夢)

People · Japan

Yumu Tabuchi (田渕雄夢)

3×3 · top 0.54% of 284,439 all-time · competing since March 2006 · 2006TABU02

Yumu Tabuchi (田渕雄夢) has been competing for 20 years. His best event is the 3×3: a personal-best single of 6.09, set at United States National Championships 2012, puts him in the top 0.54% of the 284,439 people who have ever been ranked in the event, and 22nd in Japan. Until June 2011, no official 3×3 solve in the world had been that fast. Across 41 competitions since March 2006, he has put 1,516 official solves on the record across 17 events. Solve to solve, his 3×3 times vary about 13% around a typical one; 60% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 25.91 in March 2006 to 6.09, a 76% improvement. Yumu has entered 41 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 0.54% of 284,439 all-time
6.09
signature single · United States National Championships 2012
1,516
official solves on the record
13%
solve-to-solve spread · wider than 60% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×36.098.25
top 0.54%22 / 3,329
3×3 one-handed11.5215.40
top 2.4%23 / 529
2×21.613.48
top 2.6%37 / 1,021
4×430.4138.25
top 3.1%42 / 667
3×3 Fewest Moves27 moves—
top 8.0%40 / 201
5×51:07.841:11.12
top 10.2%62 / 420
3×3 blindfolded55.162:07.93
top 11.5%58 / 282
Pyraminx6.387.75
top 22.9%245 / 688
Square-119.4422.13
top 26.6%95 / 245
3×3 Multi-Blind7 of 8 cubes · 58:37—
top 35.0%63 / 128
Megaminx1:44.911:57.44
top 37.5%190 / 313
Clock14.2223.19
top 44.8%160 / 263
6×63:12.053:29.71
early days — 3 solves116 / 209
Skewb8.9315.55
top 47.9%213 / 338
4×4 blindfolded8:41.85—
top 49.3%33 / 81
7×75:12.085:48.26
top 54.5%115 / 188
5×5 blindfolded31:13.00—
early days — 1 solve42 / 50

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: 25.91Tokyo Open 2006: 15.90Japanese Championship 2006: 15.55Japan Open 2007: 14.13World Rubik's Cube Championship 2007: 11.00Osaka Open 2008: 11.71Kashiwa Open 2008: 10.86Tokyo Open 2008: 9.68Japan Open 2008: 11.31Osaka Open 2009: 9.19Japan Open 2009: 9.86World Rubik's Cube Championship 2009: 10.75JRCA Kanto Winter 2010: 9.43Japan Open 2010: 9.16Alpha Cube BUAA Open 2010: 9.1830th Anniversary MegaHouse Cup 2010: 8.43Asian Championship 2010: 8.08Matsudo Open 2010: 8.61UT Open 2010: 7.50Osaka 2011: 8.41Matsudo Spring 2011: 8.21World Rubik's Cube Championship 2011: 8.40Matsudo Spring 2012: 8.16Rabbit and Turtle 2012: 7.55Kawasaki Open 2012: 7.28United States National Championships 2012: 6.09Kanto Open 2012: 8.25Cube Camp in Kanazawa 2012: 7.56Japan Open 2012: 7.96UT Open 2012: 8.86UT Open 2013: 8.58Asian Championship 2014: 8.03UT Open 2014: 8.09Tokyo Pyraminx Open 2015: 8.58Kansai Open 2015: 8.27Japan Championship 2019: 8.296.0925.915 Mar 20062 Nov 2019

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-6 3×3 single — 1,376 people have one; it is 0.09 away.
  • A sub-10 3×3 one-handed single — 779 people have one; it is 1.52 away.

Targets move as he improves.