People · Japan
Ryo Koizumi (小泉諒)
2×2 · top 7.4% of 186,767 all-time · competing since May 2016 · 2016KOIZ01
Ryo Koizumi (小泉諒) has been competing for 10 years. His best event is the 2×2: a personal-best single of 2.34, set at Kawasaki Spring 2016, puts him in the top 7.4% of the 186,767 people who have ever been ranked in the event, and 100th in Japan. Until February 2008, no official 2×2 solve in the world had been that fast. Across 6 competitions since May 2016, he has put 53 official solves on the record across five events. Solve to solve, his 3×3 times vary about 21% around a typical one, an early reading from 6 counted rounds. His 3×3 best has come down from 18.09 in May 2016 to 12.72, a 30% improvement. Ryo 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 | |
|---|---|---|---|---|---|
| 2×2 | 2.34 | 7.25 | top 7.4% | 100 / 1,021 | |
| 3×3 | 12.72 | 14.63 | top 16.5% | 695 / 3,329 | |
| 3×3 blindfolded | 2:42.53 | 3:16.98 | top 47.2% | 181 / 282 | |
| Pyraminx | 13.51 | 15.93 | top 75.5% | 581 / 688 | |
| 3×3 Multi-Blind | 3 of 6 cubes · 54:50 | — | early days — 1 solve | 127 / 128 |
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
- 28 Apr 2019First sub-15 3×3: 12.72 at Tribox Open Spring 2019.
- 8 May 2016First competition: Kawasaki Spring 2016. A 18.09 3×3 single to start from.
Competitions
- Kurukuru Summer 2019 · 27 Jul 2019
- Reiwa Anniversary 2019 · 1 Jun 2019
- Tribox Open Spring 2019 · 28 Apr 2019 — 1 personal best set
- Meguro 2017 · 5 May 2017 — 1 personal best set
- Kanto Summer 2016 · 24 Jul 2016
- Kawasaki Spring 2016 · 8 May 2016
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.
- Yuhei Takagi (高木佑平) — met in 12 rounds, never finished ahead
- Taiga Takaoka (高岡汰虎) — met in 12 rounds, never finished ahead
- Yuuki Kobayashi (古林祐輝) — met in 11 rounds, never finished ahead
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.34 away.
- A sub-12 3×3 single — 39,535 people have one; it is 0.72 away.
Targets move as he improves.