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People → Japan → Kazuaki Oshima (大島一晃)

People · Japan

Kazuaki Oshima (大島一晃)

3×3 Fewest Moves · top 5.1% of 12,418 all-time · competing since July 2010 · 2010OSHI01

Kazuaki Oshima (大島一晃) has been competing for 16 years. His best event is the 3×3 Fewest Moves: a personal-best single of 25 moves, set at Japan FMC Championship 2026, puts him in the top 5.1% of the 12,418 people who have ever been ranked in the event, and 30th in Japan. Across 42 competitions since July 2010, he has put 361 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 54% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 25.71 in July 2010 to 11.97, a 53% improvement. Kazuaki has entered 42 competitions, more competitions than 99% of everyone who has ever competed.

3×3 Fewest Moves
best event — top 5.1% of 12,418 all-time
25 moves
signature single · Japan FMC Championship 2026
361
official solves on the record
13%
solve-to-solve spread · steadier than 54% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×3 Fewest Moves25 moves—
top 5.1%30 / 205
3×311.9714.10
top 13.9%596 / 3,360
4×446.3151.86
top 20.0%211 / 679
5×51:27.251:39.30
top 25.2%156 / 426
6×62:54.173:00.40
top 38.1%96 / 209
2×25.099.20
top 40.5%500 / 1,026
7×74:33.374:54.01
top 42.2%89 / 188
Clock14.7122.11
top 46.8%168 / 268

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

30th Anniversary MegaHouse Cup 2010: 25.71Hokuriku Eve 2011: 18.22Kansai Open 2012: 19.05Tokai Open 2012: 19.25Cube Camp in Kanazawa 2012: 19.09Lake-Biwa Open 2013: 20.72Japan Open 2017: 12.28Tribox Open Spring 2018: 16.90WCA Asian Championship 2018: 13.07Japan Championship 2018: 16.81Reiwa Anniversary 2019: 16.12Tokai Open 2019: 14.26WCA World Championship 2019: 16.42Ayase Autumn 2019: 14.41Kyoto Open 2019: 15.06Japan Championship 2019: 13.56Hiroshima Open 2019: 11.97Kanazawa Open 2020: 13.57Tokai Winter PM 2021: 13.82Minatomirai 2022: 15.06Kanazawa Challenge Spring AM 2023: 15.90Rubik's WCA World Championship 2023: 14.30Tokai Open 2023: 12.62Otsu Biwako Autumn 2023: 15.77Tokai Open PM 2024: 13.61Tokai Spring 2025: 12.82Kansai Odd and BLD 2025: 13.28Tokai Summer 2025: 14.20Katano Spring 2026: 15.69Hiroshima Spring 2026: 12.68Otsu Biwako Autumn 2026: 14.79Tokai Autumn 2026: 13.2511.9725.7124 Jul 201011 Oct 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-10 3×3 single — 21,606 people have one; it is 1.97 away.
  • A sub-40 4×4 single — 10,370 people have one; it is 6.31 away.

Targets move as he improves.