People · Japan
Masaru Isono (五十野優)
3×3 · top 35.9% of 284,439 all-time · competing since July 2024 · 2024ISON03
Masaru Isono (五十野優) has been competing for 2 years. His best event is the 3×3: a personal-best single of 18.59, set at Katano Summer 2025, puts him in the top 35.9% of the 284,439 people who have ever been ranked in the event, and 1,381st in Japan. Across 5 competitions since July 2024, he has put 24 official solves on the record across one event. Solve to solve, his 3×3 times vary about 18% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 30.24 in July 2024 to 18.59, a 39% improvement. Masaru 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 | 18.59 | 22.55 | top 35.9% | 1,381 / 3,329 |
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
- 12 Apr 2025First sub-20 3×3: 18.78 at Tokai Spring 2025.
- 15 Sep 2024First sub-30 3×3: 27.43 at Tokai Open PM 2024.
- 7 Jul 2024First competition: Katano Milky Way 2024. A 30.24 3×3 single to start from.
Competitions
- Katano Summer 2025 · 15 Sep 2025 — 1 personal best set
- Kansai Odd and BLD 2025 · 15 Jun 2025
- Tokai Spring 2025 · 12 Apr 2025 — 1 personal best set
- Tokai Open PM 2024 · 15 Sep 2024 — 1 personal best set
- Katano Milky Way 2024 · 7 Jul 2024
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.
- Yuichi Hamada (濵田祐一) — met in 5 rounds, finished ahead once
- Toshio Hoshino (星野利夫) — met in 5 rounds, finished ahead once
- Takayuki Ookusa (大艸尊之) — met in 5 rounds, never finished ahead
Next targets
- A sub-15 3×3 single — 69,493 people have one; it is 3.59 away.
Targets move as he improves.