Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Japan → Kazuki Sakamoto (坂本一樹)

People · Japan

Kazuki Sakamoto (坂本一樹)

2×2 · top 1.4% of 186,767 all-time · competing since July 2017 · 2017SAKA03

Kazuki Sakamoto (坂本一樹) has been competing for 9 years. His best event is the 2×2: a personal-best single of 1.32, set at Japan Championship 2019, puts him in the top 1.4% of the 186,767 people who have ever been ranked in the event, and 13th in Japan. Until November 2008, no official 2×2 solve in the world had been that fast. Across 15 competitions since July 2017, he has put 521 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 10% around a typical one, steadier than 97% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 11.99 in July 2017 to 7.97, a 34% improvement. Kazuki has entered 15 competitions, more competitions than 95% of everyone who has ever competed.

2×2
best event — top 1.4% of 186,767 all-time
1.32
signature single · Japan Championship 2019
521
official solves on the record
10%
solve-to-solve spread · steadier than 97% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
2×21.322.28
top 1.4%13 / 1,021
4×429.7632.63
top 2.7%33 / 667
3×37.979.36
top 2.7%117 / 3,329
5×555.351:00.98
top 3.5%28 / 420
7×72:34.992:41.71
top 4.6%12 / 188
Pyraminx3.735.23
top 6.4%82 / 688
6×61:48.351:56.00
top 6.5%18 / 209
Megaminx53.231:01.13
top 6.6%49 / 313
3×3 one-handed21.0325.32
top 23.3%187 / 529
Square-120.4326.65
top 28.9%99 / 245
Skewb7.658.41
top 38.7%189 / 338
4×4 blindfolded16:01.00
early days — 1 solve62 / 81

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

Kansai Summer 2017: 11.99Kansai Big Cube 2017: 10.67Kansai Open 2018: 9.90Kansai Open 2019: 9.70Nishinomiya Open 2019: 11.00Cube Camp in Kanazawa 2019: 10.02Kansai Summer 2019: 9.11Ayase Autumn 2019: 9.82Kyoto Open 2019: 9.18Japan Championship 2019: 9.13Hiroshima Open 2019: 7.97Tokai Winter AM 2021: 8.74Katano Milky Way 2024: 8.327.9711.9916 Jul 20177 Jul 2024

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-1 2×2 single — 1,032 people have one; it is 0.32 away.
  • A sub-25 4×4 single — 588 people have one; it is 4.76 away.

Targets move as he improves.