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Akihiro Ishida (石田朗大)

Megaminx · top 6.4% of 34,786 all-time · competing since June 2009 · 2009ISHI01

Akihiro Ishida (石田朗大) has been competing for 17 years. His best event is the Megaminx: a personal-best single of 52.87, set at Ota Spring 2025, puts him in the top 6.4% of the 34,786 people who have ever been ranked in the event, and 48th in Japan. Until April 2010, no official Megaminx solve in the world had been that fast. Across 65 competitions since June 2009, he has put 1,102 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 13% around a typical one; 61% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 19.81 in June 2009 to 10.69, a 46% improvement. Akihiro has entered 65 competitions, more competitions than 99% of everyone who has ever competed.

Megaminx
best event — top 6.4% of 34,786 all-time
52.87
signature single · Ota Spring 2025
1,102
official solves on the record
13%
solve-to-solve spread · wider than 61% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
Megaminx52.871:02.42
top 6.4%48 / 313
3×3 Fewest Moves27 moves32.00
top 8.0%40 / 201
4×437.3243.15
top 9.0%89 / 667
3×310.6913.02
top 9.5%418 / 3,329
Pyraminx4.936.26
top 12.8%156 / 688
Skewb4.317.98
top 13.1%64 / 338
Clock7.638.98
top 13.5%50 / 263
3×3 one-handed19.1824.90
top 18.3%157 / 529
5×51:26.741:32.83
top 24.7%148 / 420
2×24.186.10
top 28.8%360 / 1,021
Square-126.0234.63
top 41.5%138 / 245
3×3 blindfolded2:57.26—
top 51.6%196 / 282
6×64:02.974:27.73
top 66.4%153 / 209
7×76:46.317:21.71
top 77.6%154 / 188

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 Kanto Summer 2009: 19.81JRCA Kanto Winter 2010: 16.19Japan Open 2010: 16.8430th Anniversary MegaHouse Cup 2010: 16.71Matsudo Open 2010: 14.38UT Open 2010: 12.41Matsudo Spring 2011: 14.21Matsudo Autumn 2011: 14.78UT Open 2011: 13.84Tsukuba 2012: 12.08Kansai Open 2012: 12.58Matsudo Spring 2012: 12.83Kawasaki Open 2012: 12.25Kanto Open 2012: 13.02Cube Camp in Kanazawa 2012: 12.81Japan Open 2012: 13.13Asian Championship 2012: 12.05West Japan Big Cube 2012: 11.66UT Open 2012: 14.44Rabbit And Turtle 2013: 12.96Cherry Blossom Viewing Open 2013: 13.19Japan Contest Spring 2013: 16.33World Rubik's Cube Championship 2013: 13.65Tachikawa 3x3 Fest 2013: 11.75UT Open 2013: 12.43Japan Contest Spring 2014: 12.11Asian Championship 2014: 14.65UT Open 2014: 15.75Kawasaki Summer 2015: 12.36Cube Camp in Kanazawa 2015: 12.55Japan Open 2015: 12.72UT Open 2015: 12.30Kawasaki Spring 2016: 11.59Kanto Summer 2016: 13.37Asian Championship 2016: 11.42Japan Open 2016: 11.70Tribox Open Winter 2017: 11.79Circles Open Spring 2017: 12.24Tokyo Pyraminx Open 2017: 11.90WCA Asian Championship 2018: 13.68Tokyo Pyraminx Returns 2018: 10.69Saitama 2018: 15.13Ayase 2019: 12.08Reiwa Anniversary 2019: 11.88Japan Championship 2019: 12.26Ayase Autumn B 2022: 12.72Kansai Mega Day 2025: 13.0310.6919.8121 Jun 20092 Nov 2025

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-50 Megaminx single — 1,776 people have one; it is 2.87 away.
  • A sub-30 4×4 single — 2,388 people have one; it is 7.32 away.

Targets move as he improves.