People · Japan
Kyoshiro Sakamoto (坂本恭志郞)
Pyraminx · top 4.3% of 129,321 all-time · competing since April 2025 · 2025SAKA01
Kyoshiro Sakamoto (坂本恭志郞) has been competing for a year. His best event is the Pyraminx: a personal-best single of 3.20, set at Katano Spring 2026, puts him in the top 4.3% of the 129,321 people who have ever been ranked in the event, and 60th in Japan. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 9 competitions since April 2025, he has put 138 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 14% around a typical one; 68% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 14.23 in April 2025 to 9.66, a 32% improvement. Kyoshiro has entered nine competitions, more competitions than 91% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| Pyraminx | 3.20 | 4.60 | top 4.3% | 60 / 688 | |
| 3×3 | 9.66 | 11.95 | top 6.5% | 286 / 3,329 | |
| Clock | 6.99 | 7.92 | top 10.9% | 44 / 263 | |
| 2×2 | 2.90 | 3.51 | top 13.1% | 178 / 1,021 | |
| Megaminx | 1:20.84 | 1:34.94 | top 22.4% | 137 / 313 | |
| 3×3 one-handed | 21.18 | 26.68 | top 23.7% | 192 / 529 | |
| Square-1 | 20.43 | 22.57 | top 28.9% | 99 / 245 | |
| 4×4 | 1:00.72 | 1:13.91 | top 37.2% | 369 / 667 |
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
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 25 Jan 2026First sub-10 3×3: 9.87 at Ota Winter 2026.
- 20 Apr 2025First competition: Tokyo Spring PM 2025. A 14.23 3×3 single to start from.
Competitions
- Kanto Spring 2026 · 17 May 2026
- Tokyo Spring 2026 · 5 Apr 2026 — 1 personal best set
- Katano Spring 2026 · 21 Mar 2026 — 2 personal bests set
- Otsu Biwako Winter 2026 · 1 Feb 2026 — 1 personal best set
- Ota Winter 2026 · 25 Jan 2026 — 1 personal best set
- Tokyo Winter 2025 · 7 Dec 2025 — 2 personal bests set
- Kanto Summer AM 2025 · 30 Aug 2025 — 2 personal bests set
- Tokyo Summer 2025 · 21 Jul 2025 — 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.
- Takumi Kato (加藤匠) — met in 26 rounds, finished ahead 6 times
- Hajime Miyazaki (宮崎朔) — met in 26 rounds, finished ahead 3 times
- Go Nakamura (中村豪) — met in 23 rounds, finished ahead 5 times
Next targets
- A sub-3 Pyraminx single — 4,700 people have one; it is 0.20 away.
- A sub-8 3×3 single — 7,931 people have one; it is 1.66 away.
Targets move as he improves.