People · Japan
Kaoru Maruyama (丸山薫)
3×3 · top 33.4% of 288,433 all-time · competing since February 2025 · 2025MARU02
Kaoru Maruyama (丸山薫) has been competing for a year. His best event is the 3×3: a personal-best single of 17.73, set at Ota Autumn 2025, puts him in the top 33.4% of the 288,433 people who have ever been ranked in the event, and 1,321st in Japan. Across 10 competitions since February 2025, he has put 54 official solves on the record across two events. Solve to solve, his 3×3 times vary about 20% around a typical one; 99% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 22.72 in February 2025 to 17.73, a 22% improvement. Kaoru has entered ten competitions, more competitions than 92% 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 | 17.73 | 25.04 | top 33.4% | 1,321 / 3,360 | |
| Pyraminx | 17.51 | 21.17 | top 88.9% | 651 / 691 |
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
- 30 Aug 2025First sub-20 3×3: 19.49 at Kanto Summer PM 2025.
- 16 Feb 2025First competition: Tokyo Open PM Winter 2025. A 22.72 3×3 single to start from.
Competitions
- Kanto Summer 2026 · 29 Aug 2026
- Tokyo Spring 2026 · 5 Apr 2026
- Ota Winter 2026 · 25 Jan 2026
- Tokyo Winter 2025 · 7 Dec 2025
- Ota Autumn 2025 · 8 Nov 2025 — 1 personal best set
- Kanto Autumn PM 2025 · 11 Oct 2025
- Kanto Summer PM 2025 · 30 Aug 2025 — 1 personal best set
- Kanto Spring 2025 · 31 May 2025
- Tokyo Spring PM 2025 · 20 Apr 2025 — 1 personal best set
- Tokyo Open PM Winter 2025 · 16 Feb 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.
- Hajime Miyazaki (宮崎朔) — met in 10 rounds, never finished ahead
- Go Nakamura (中村豪) — met in 10 rounds, never finished ahead
- Xuan Liu (刘璇) — met in 9 rounds, never finished ahead
Next targets
- A sub-15 3×3 single — 70,740 people have one; it is 2.73 away.
- A sub-15 Pyraminx single — 107,130 people have one; it is 2.51 away.
Targets move as he improves.