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The Middle Three
People → Japan → Kenya Yahata (八幡顕也)

People · Japan

Kenya Yahata (八幡顕也)

Square-1 · top 7.2% of 25,272 all-time · competing since April 2019 · 2019YAHA01

Kenya Yahata (八幡顕也) has been competing for 7 years. His best event is the Square-1: a personal-best single of 10.65, set at Otsu Biwako Autumn 2023, puts him in the top 7.2% of the 25,272 people who have ever been ranked in the event, and 25th in Japan. Until August 2010, no official Square-1 solve in the world had been that fast. Across 30 competitions since April 2019, he has put 355 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 13% around a typical one; 54% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 16.86 in April 2019 to 11.01, a 35% improvement. Kenya has entered 30 competitions, more competitions than 98% of everyone who has ever competed.

Square-1
best event — top 7.2% of 25,272 all-time
10.65
signature single · Otsu Biwako Autumn 2023
355
official solves on the record
13%
solve-to-solve spread · wider than 54% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
Square-110.6514.09
top 7.2%25 / 245
3×311.0112.79
top 10.5%458 / 3,329
3×3 one-handed16.2620.57
top 10.8%104 / 529
4×444.8950.36
top 18.2%184 / 667
Pyraminx7.049.42
top 28.2%291 / 688
5×51:31.801:45.01
top 28.8%172 / 420
Megaminx1:35.221:38.32
top 31.5%169 / 313
2×25.106.56
top 40.6%504 / 1,021
3×3 blindfolded2:41.00—
top 46.7%178 / 282
Skewb9.4616.36
top 51.5%224 / 338
6×63:32.603:51.34
top 55.7%135 / 209
Clock19.2420.45
top 62.5%214 / 263
7×76:13.186:31.00
early days — 3 solves146 / 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

Kansai Open 2019: 16.86Tokai Open 2019: 14.63Kyoto Open 2019: 15.87Japan Championship 2019: 17.10Hiroshima Open 2019: 13.81Kanazawa Open 2020: 15.62Tokai Winter PM 2021: 16.33Tokai Open 2023: 13.20Tokai Challenge Alpha 2024: 11.69Tokai Open AM 2024: 13.03Tokai Spring 2025: 11.51Tokyo Spring AM 2025: 13.62Kanto Spring 2025: 13.11Kansai Odd and BLD 2025: 12.11Tokai Summer 2025: 12.74Kanto Summer PM 2025: 13.14Kanto Autumn PM 2025: 12.94Kansai Mega Day 2025: 11.25Otsu Biwako Winter 2026: 11.01Katano Spring 2026: 13.23Kanto Spring 2026: 13.61Japan Championship 2026: 11.75Shimonoseki Summer 2026: 12.5011.0117.1020 Apr 20199 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-10 Square-1 single — 1,533 people have one; it is 0.65 away.
  • A sub-10 3×3 single — 21,172 people have one; it is 1.01 away.

Targets move as he improves.