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The Middle Three
People → Japan → Kai Hatano

People · Japan

Kai Hatano

2×2 · top 1.2% of 186,767 all-time · competing since April 2022 · 2022HATA01

Kai Hatano has been competing for 4 years. His best event is the 2×2: a personal-best single of 1.24, set at Mind Sports Olympiad Cubing 2023, puts him in the top 1.2% of the 186,767 people who have ever been ranked in the event, and 9th in Japan. Until November 2008, no official 2×2 solve in the world had been that fast. Across 30 competitions since April 2022, he has put 967 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 77% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 17.58 in April 2022 to 7.18, a 59% improvement. Kai has entered 30 competitions, more competitions than 98% of everyone who has ever competed.

2×2
best event — top 1.2% of 186,767 all-time
1.24
signature single · Mind Sports Olympiad Cubing 2023
967
official solves on the record
12%
solve-to-solve spread · steadier than 77% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
2×21.242.85
top 1.2%9 / 1,021
3×37.188.02
top 1.5%70 / 3,329
4×431.0034.31
top 3.5%44 / 667
3×3 one-handed13.6118.52
top 5.4%57 / 529
Pyraminx3.635.37
top 6.0%79 / 688
Skewb4.646.64
top 15.5%77 / 338
Megaminx1:13.211:19.27
top 17.6%117 / 313
Clock8.6010.20
top 18.0%65 / 263
Square-116.0720.67
top 18.8%73 / 245
5×51:22.911:27.59
top 21.5%128 / 420
3×3 blindfolded1:29.421:58.14
top 22.9%103 / 282
6×63:33.49—
top 56.1%136 / 209
7×75:57.226:16.44
early days — 3 solves132 / 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

Farnworth Spring D 2022: 17.58Stevenage Spring 2022: 14.99Kewbz UK Championship 2022: 14.60Reading Spring 2023: 9.30Stevenage May 2023: 10.03Stevenage June 2023: 9.27Mind Sports Olympiad Cubing 2023: 8.25Rubik's UK Championship 2023: 7.68Guildford Autumn 2023: 7.98Stevenage February 2024: 7.60Stevenage April 2024: 9.94Stevenage June 2024: 8.66Stevenage October 2024: 8.32Rubik's UK Championship 2024: 7.18Stevenage December 2024: 8.81Chichester January 2025: 7.98Stevenage April 2025: 7.82Rubik's UK Championship 2025: 7.28Stevenage October 2025: 7.44Hampshire Autumn 2025: 7.85Stevenage 10th Anniversary 2025: 8.02Stevenage May 2026: 7.22Kewbz UK Championship 2026: 7.947.1817.5817 Apr 202228 Aug 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-1 2×2 single — 1,032 people have one; it is 0.24 away.
  • A sub-6 3×3 single — 1,376 people have one; it is 1.18 away.

Targets move as he improves.