People · Japan
Izuru Sakamoto (阪本市弦)
Pyraminx · top 1.2% of 129,321 all-time · competing since September 2023 · 2023SAKA05
Izuru Sakamoto (阪本市弦) has been competing for 3 years. His best event is the Pyraminx: a personal-best single of 2.04, set at Katano Milky Way 2024, puts him in the top 1.2% of the 129,321 people who have ever been ranked in the event, and 14th in Japan. Until July 2011, no official Pyraminx solve in the world had been that fast. Across 6 competitions since September 2023, he has put 73 official solves on the record across four events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 9 counted rounds. His 3×3 best has come down from 15.35 in September 2023 to 10.10, a 34% improvement. Izuru has entered six competitions, more competitions than 86% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| Pyraminx | 2.04 | 4.40 | top 1.2% | 14 / 688 | |
| 3×3 | 10.10 | 12.35 | top 7.8% | 333 / 3,329 | |
| 4×4 | 46.21 | 51.87 | top 19.8% | 201 / 667 | |
| 7×7 | 3:32.75 | 3:52.19 | early days — 3 solves | 53 / 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
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 7 Jul 2024First sub-15 3×3: 10.10 at Katano Milky Way 2024.
- 23 Sep 2023First competition: Otsu Biwako Autumn 2023. A 15.35 3×3 single to start from.
Competitions
- Japan Championship 2026 · 18 Jul 2026
- Kansai Mega Day 2025 · 2 Nov 2025
- Katano Summer 2025 · 15 Sep 2025
- Kansai Odd and BLD 2025 · 15 Jun 2025
- Katano Milky Way 2024 · 7 Jul 2024 — 2 personal bests set
- Otsu Biwako Autumn 2023 · 23 Sep 2023
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.
- Takayuki Ookusa (大艸尊之) — met in 16 rounds, finished ahead 5 times
- Haruki Tsutsui (筒井遥規) — met in 16 rounds, finished ahead twice
- Hajime Miyazaki (宮崎朔) — met in 15 rounds, finished ahead twice
Next targets
- A sub-2 Pyraminx single — 1,476 people have one; it is 0.04 away.
- A sub-10 3×3 single — 21,172 people have one; it is 0.10 away.
Targets move as he improves.