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People → Japan → Takafumi Sakakibara (榊原隆文)

People · Japan

Takafumi Sakakibara (榊原隆文)

3×3 blindfolded · top 8.5% of 12,178 all-time · competing since July 2017 · 2017SAKA04

Takafumi Sakakibara (榊原隆文) has been competing for 9 years. His best event is the 3×3 blindfolded: a personal-best single of 45.81, set at Tokyo Challenge BLD I 2023, puts him in the top 8.5% of the 12,178 people who have ever been ranked in the event, and 42nd in Japan. Until July 2009, no official 3×3 blindfolded solve in the world had been that fast. Across 30 competitions since July 2017, he has put 142 official solves on the record across six events. Solve to solve, his 3×3 times vary about 24% around a typical one; 99% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 37.32 in July 2017 to 23.51, a 37% improvement. Takafumi has entered 30 competitions, more competitions than 98% of everyone who has ever competed.

3×3 blindfolded
best event — top 8.5% of 12,178 all-time
45.81
signature single · Tokyo Challenge BLD I 2023
142
official solves on the record
24%
solve-to-solve spread · wider than 99% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×3 blindfolded45.811:39.13
top 8.5%42 / 282
3×3 Multi-Blind13 of 15 cubes · 55:44—
top 14.8%22 / 128
4×4 blindfolded5:18.4913:50.00
top 24.2%22 / 81
5×5 blindfolded16:26.0027:39.00
top 46.1%24 / 50
3×323.5126.61
top 49.2%1,774 / 3,329
3×3 Fewest Moves44 moves—
early days — 2 solves147 / 201

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 Pyraminx Open 2017: 37.32Yokohama 2017: 29.72Suginami Open 2017: 28.85Japan Open 2017: 30.06YRCC Open 2018: 26.28Kansai Open 2018: 23.77Cube Camp in Kanazawa 2018: 25.90WCA Asian Championship 2018: 28.08Kansai Big Cube 2018: 24.48Saitama 2018: 24.05Japan Championship 2018: 28.65Ayase 2019: 25.58Kansai Open 2019: 26.90Reiwa Anniversary 2019: 28.82WCA World Championship 2019: 23.51Cube Camp in Kanazawa 2019: 24.0923.5137.3229 Jul 201710 Aug 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-40 3×3 blindfolded single — 826 people have one; it is 5.81 away.
  • A sub-5:00 4×4 blindfolded single — 474 people have one; it is 18.49 away.

Targets move as he improves.