Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Japan → Mika Muranushi (村主美佳)

People · Japan

Mika Muranushi (村主美佳)

3×3 · top 18.0% of 284,439 all-time · competing since November 2006 · 2006MURA01

Mika Muranushi (村主美佳) has been competing for 20 years. Her best event is the 3×3: a personal-best single of 13.16, set at Kansai Open 2012, puts her in the top 18.0% of the 284,439 people who have ever been ranked in the event, and 758th in Japan. Across 65 competitions since November 2006, she has put 516 official solves on the record across twelve events. Solve to solve, her 3×3 times vary about 14% around a typical one; 63% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. Her 3×3 best has come down from 36.12 in November 2006 to 13.16, a 64% improvement. Mika has entered 65 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 18.0% of 284,439 all-time
13.16
signature single · Kansai Open 2012
516
official solves on the record
14%
solve-to-solve spread · wider than 63% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×313.1616.31
top 18.0%758 / 3,329
Pyraminx7.3313.42
top 30.6%311 / 688
2×26.156.55
top 52.4%639 / 1,021
4×41:20.591:29.62
top 56.4%496 / 667
Clock18.3621.93
top 59.9%207 / 263
3×3 one-handed40.3644.82
top 65.8%442 / 529
Skewb15.4423.06
top 79.7%317 / 338
5×53:12.783:29.16
top 82.1%377 / 420
Megaminx3:29.833:53.45
top 83.6%293 / 313
3×3 Fewest Moves55 moves—
early days — 2 solves192 / 201
6×66:22.756:39.19
early days — 3 solves196 / 209
7×79:22.63—
early days — 1 solve180 / 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

Japanese Championship 2006: 36.12Japan Open 2007: 35.69Kanazawa Open 2007: 27.88Kawasaki Open 2008: 27.78Osaka Open 2008: 26.50Kashiwa Open 2008: 24.08Tokyo Open 2008: 22.15Japan Open 2008: 18.25Amagasaki Open 2009: 18.55Osaka Open 2009: 15.21JRCA Kanto Summer 2009: 19.36JRCA Kansai Summer 2009: 18.84Japan Open 2009: 17.90Toyama Open 2009: 18.18World Rubik's Cube Championship 2009: 21.38Doshisha Open 2009: 18.05JRCA Kanto Winter 2010: 19.22Japan Open 2010: 16.6830th Anniversary MegaHouse Cup 2010: 20.50Cube Camp in Kanazawa 2010: 17.28JRCA Kansai Summer 2010: 15.83Matsudo Open 2010: 16.11UT Open 2010: 18.56Ishikawa Gokoku Shinto Shrine Open 2010: 17.11Kansai New Year 2011: 16.00Osaka 2011: 15.44Matsudo Spring 2011: 17.22Japan Open 2011: 15.86Cube Camp in Kanazawa 2011: 18.15Matsudo Autumn 2011: 16.93UT Open 2011: 17.77Tsukuba 2012: 13.63Kyushu Open 2012: 16.93Kansai Open 2012: 13.16Matsudo Spring 2012: 16.13Kawasaki Open 2012: 15.31Japan Open 2012: 15.81UT Open 2012: 18.02Rabbit And Turtle 2013: 19.05Kansai Open 2013: 15.50Cherry Blossom Viewing Open 2013: 17.88Japan Open 2013: 15.34Kansai Star Festival 2013: 17.44Kawasaki Autumn 2013: 19.09UT Open 2013: 16.30Kyushu Open 2013: 15.05Kansai Open 2014: 16.19Japan Contest Spring 2014: 15.94Sapporo Open 2014: 16.63Asian Championship 2014: 19.81Kyushu Open 2014: 14.50East Japan Big Cubes 2015: 21.34Cube Camp in Kanazawa 2015: 18.00Meguro 3x3 Fest 2015: 18.78Japan Championship 2018: 19.09Shimonoseki 2025: 21.8513.1636.1212 Nov 200628 Dec 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 her.

Next targets

  • A sub-12 3×3 single — 39,535 people have one; it is 1.16 away.
  • A sub-6 Pyraminx single — 25,870 people have one; it is 1.33 away.

Targets move as she improves.