People · Japan
Masumi Kato (加藤真清)
3×3 · top 4.3% of 284,439 all-time · competing since February 2023 · 2023KATO02
Masumi Kato (加藤真清) has been competing for 4 years. His best event is the 3×3: a personal-best single of 8.77, set at Tokai Challenge Beta 2024, puts him in the top 4.3% of the 284,439 people who have ever been ranked in the event, and 182nd in Japan. Until May 2008, no official 3×3 solve in the world had been that fast. Across 5 competitions since February 2023, he has put 45 official solves on the record across three events. Solve to solve, his 3×3 times vary about 11% around a typical one, an early reading from 6 counted rounds. His 3×3 best has come down from 11.61 in February 2023 to 8.77, a 24% improvement. Masumi has entered five competitions, more competitions than 83% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 3×3 | 8.77 | 10.43 | top 4.3% | 182 / 3,329 | |
| 3×3 one-handed | 24.30 | 31.66 | top 32.3% | 265 / 529 | |
| Pyraminx | 7.85 | 11.51 | top 35.0% | 352 / 688 |
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
- 31 Mar 2024First sub-10 3×3: 8.77 at Tokai Challenge Beta 2024.
- 12 Feb 2023First competition: Go x Go Kyoto 2023. A 11.61 3×3 single to start from.
Competitions
- Tokai Open AM 2024 · 15 Sep 2024
- Tokai Challenge Beta 2024 · 31 Mar 2024 — 1 personal best set
- Otsu Biwako Autumn 2023 · 23 Sep 2023 — 1 personal best set
- Hiroshima Spring 2023 · 25 Mar 2023 — 2 personal bests set
- Go x Go Kyoto 2023 · 12 Feb 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.
- Hajime Miyazaki (宮崎朔) — met in 7 rounds, finished ahead once
- Ryoya Sakanishi (坂西亮哉) — met in 6 rounds, finished ahead 3 times
- Kai Yamamoto (山本快) — met in 6 rounds, finished ahead twice
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 0.77 away.
- A sub-20 3×3 one-handed single — 15,081 people have one; it is 4.30 away.
Targets move as he improves.