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People → Japan → Shinichiro Sato (佐藤真一郎)

People · Japan

Shinichiro Sato (佐藤真一郎)

3×3 · top 0.44% of 284,439 all-time · competing since March 2009 · 2009SATO02

Shinichiro Sato (佐藤真一郎) has been competing for 18 years. His best event is the 3×3: a personal-best single of 5.91, set at Japan Championship 2026, puts him in the top 0.44% of the 284,439 people who have ever been ranked in the event, and 15th in Japan. Until June 2011, no official 3×3 solve in the world had been that fast. Across 32 competitions since March 2009, he has put 1,212 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 15% around a typical one; 82% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 12.75 in March 2009 to 5.91, a 54% improvement. Shinichiro has entered 32 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 0.44% of 284,439 all-time
5.91
signature single · Japan Championship 2026
1,212
official solves on the record
15%
solve-to-solve spread · wider than 82% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×35.918.87
top 0.44%15 / 3,329
3×3 one-handed12.0216.64
top 3.0%33 / 529
4×432.8934.86
top 4.9%57 / 667
5×51:03.861:10.23
top 7.7%52 / 420
2×22.402.97
top 8.0%107 / 1,021
Megaminx57.961:02.35
top 8.9%69 / 313
Pyraminx4.656.68
top 11.1%135 / 688
6×62:10.772:21.87
top 15.7%52 / 209
Skewb6.478.94
top 29.5%149 / 338
3×3 Fewest Moves36 moves—
early days — 1 solve103 / 201
7×74:10.664:42.88
top 34.5%78 / 188
Square-125.1237.54
top 39.4%136 / 245
3×3 blindfolded2:41.94—
early days — 2 solves179 / 282
Clock19.6720.41
top 63.7%217 / 263

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 Open 2009: 12.75Japan Open 2010: 9.55Osaka 2011: 9.77West Japan Big Cubes 2011: 10.30Japan Open 2011: 9.81Kansai Open 2012: 8.58Korean Winter 2013: 9.10Korea New Year 2014: 8.92Thanks Cubing Day 2014: 8.30Asian Championship 2014: 8.71JRCA Kansai Fall 2014: 9.03Japan Open 2015: 8.43JRCA Kansai Fall 2015: 7.77Shenyang Open 2016: 8.38Changchun Open 2016: 8.98Asian Championship 2016: 8.95Shenyang Winter 2016: 8.67Kansai Open 2017: 8.81Kansai Fall 2017: 8.99Kobe Open 2018: 7.74WCA Asian Championship 2018: 9.35Hiroshima 2018: 7.71Nishinomiya Open 2019: 8.13Kansai Summer 2019: 8.75Hiroshima Spring 2023: 8.47Rubik's WCA World Championship 2023: 8.25Kansai Odd and BLD 2025: 8.22Kansai Mega Day 2025: 8.22Shimonoseki 2025: 7.42Hiroshima Spring 2026: 6.67Japan Championship 2026: 5.915.9112.7528 Mar 200918 Jul 2026

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-5 3×3 single — 344 people have one; it is 0.91 away.
  • A sub-12 3×3 one-handed single — 2,187 people have one; it is 0.02 away.

Targets move as he improves.