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The Middle Three
People → Japan → Sho Kashiyama (樫山匠)

People · Japan

Sho Kashiyama (樫山匠)

3×3 · top 1.0% of 284,439 all-time · competing since December 2020 · 2020KASH03

Sho Kashiyama (樫山匠) has been competing for 6 years. His best event is the 3×3: a personal-best single of 6.71, set at Tokyo Open PM Winter 2025, puts him in the top 1.0% of the 284,439 people who have ever been ranked in the event, and 46th in Japan. Until January 2011, no official 3×3 solve in the world had been that fast. Across 25 competitions since December 2020, he has put 444 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 14% around a typical one; 78% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 12.10 in December 2020 to 6.71, a 45% improvement. Sho has entered 25 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 1.0% of 284,439 all-time
6.71
signature single · Tokyo Open PM Winter 2025
444
official solves on the record
14%
solve-to-solve spread · wider than 78% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×36.718.36
top 1.0%46 / 3,329
2×21.674.67
top 2.9%41 / 1,021
3×3 one-handed12.2115.96
top 3.3%38 / 529
4×435.3242.22
top 7.0%76 / 667
Pyraminx4.466.27
top 10.0%115 / 688
Megaminx1:00.551:09.08
top 10.3%77 / 313
5×51:11.071:19.55
top 12.4%75 / 420
3×3 blindfolded1:04.85—
top 14.6%71 / 282
Skewb6.168.29
top 27.0%136 / 338
7×74:38.565:10.47
top 44.0%98 / 188
Clock17.7426.11
top 57.9%201 / 263

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

Welcome Back Ayase Winter 2020: 12.10Minatomirai 2022: 8.44Ota Summer 2022: 7.42Yoga Summer B 2022: 9.30Ayase Autumn B 2022: 8.26Hiroshima Spring 2023: 7.86Tokyo Challenge V 2023: 8.51Kanazawa Challenge Spring PM 2023: 8.25Ayase Summer 2023: 8.33Rubik's WCA World Championship 2023: 7.95Tokai Open 2023: 8.32Kanazawa 2024: 7.63Katano Milky Way 2024: 7.55Tokai Open PM 2024: 7.39Tokyo Open PM Winter 2025: 6.71Tokai Spring 2025: 8.10Tokyo Spring AM 2025: 7.51Kanto Spring 2025: 7.00Kansai Odd and BLD 2025: 8.14Tokai Summer 2025: 9.53Kanto Autumn AM 2025: 7.78Shimonoseki 2025: 7.31Ota Winter 2026: 8.52Kanto Winter 2026: 7.76Hiroshima Spring 2026: 7.136.7112.1026 Dec 202030 May 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-6 3×3 single — 1,376 people have one; it is 0.71 away.
  • A sub-1 2×2 single — 1,032 people have one; it is 0.67 away.

Targets move as he improves.