People · Japan
Kensei Kojima (小島健成)
Pyraminx · top 12.9% of 129,321 all-time · competing since April 2025 · 2025KOJI01
Kensei Kojima (小島健成) has been competing for a year. His best event is the Pyraminx: a personal-best single of 4.96, set at Shimonoseki Summer 2026, puts him in the top 12.9% of the 129,321 people who have ever been ranked in the event, and 158th in Japan. Across 2 competitions since April 2025, he has put 25 official solves on the record across three events. Kensei has entered two competitions.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| Pyraminx | 4.96 | 6.45 | top 12.9% | 158 / 688 | |
| 3×3 | 12.05 | 13.13 | top 14.1% | 593 / 3,329 | |
| 2×2 | 4.80 | 6.28 | top 36.8% | 454 / 1,021 |
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 story so far
- 20 Apr 2025First competition: Tokyo Spring PM 2025. A 12.98 3×3 single to start from.
Competitions
- Shimonoseki Summer 2026 · 9 Aug 2026 — 2 personal bests set
- Tokyo Spring PM 2025 · 20 Apr 2025
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.
- Tsuyoshi Kawashima (川島毅士) — met in 3 rounds, finished ahead twice
- Muku Mitera (三寺椋) — met in 3 rounds, finished ahead once
- Seiya Sasaki (佐々木盛弥) — met in 3 rounds, finished ahead once
Next targets
- A sub-4 Pyraminx single — 9,892 people have one; it is 0.96 away.
- A sub-12 3×3 single — 39,535 people have one; it is 0.05 away.
Targets move as he improves.