People · Japan
Mieko Isomoto (磯本美恵子)
3×3 · top 55.6% of 284,439 all-time · competing since April 2019 · 2019ISOM01
Mieko Isomoto (磯本美恵子) has been competing for 7 years. Her best event is the 3×3: a personal-best single of 26.40, set at Otsu Biwako Winter 2026, puts her in the top 55.6% of the 284,439 people who have ever been ranked in the event, and 1,977th in Japan. Across 16 competitions since April 2019, she has put 118 official solves on the record across six events. Solve to solve, her 3×3 times vary about 16% around a typical one; 91% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. Her 3×3 best has come down from 1:05.67 in April 2019 to 26.40, a 60% improvement. Mieko has entered 16 competitions, more competitions than 96% 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 | 26.40 | 34.56 | top 55.6% | 1,977 / 3,329 | |
| Pyraminx | 15.48 | 18.53 | top 83.5% | 625 / 688 | |
| 2×2 | 15.56 | 17.30 | top 91.3% | 973 / 1,021 | |
| 3×3 one-handed | 1:17.58 | 1:41.07 | top 91.7% | 516 / 529 | |
| Skewb | 22.98 | 35.39 | top 93.2% | 331 / 338 | |
| 4×4 | 3:14.09 | 3:42.07 | top 97.5% | 660 / 667 |
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
- 10 Feb 2024First sub-30 3×3: 27.22 at Hiroshima Winter 2024.
- 1 Sep 2019First sub-60 3×3: 59.00 at Kansai Summer 2019.
- 20 Apr 2019First competition: Kansai Open 2019. A 1:05.67 3×3 single to start from.
Competitions
- Kanto Spring 2026 · 17 May 2026 — 1 personal best set
- Otsu Biwako Spring 2026 · 11 Apr 2026
- Otsu Biwako Winter 2026 · 1 Feb 2026 — 2 personal bests set
- Kansai Mega Day 2025 · 2 Nov 2025
- Katano Summer 2025 · 15 Sep 2025
- Kansai Parity Party 2025 · 24 Aug 2025
- Kansai Odd and BLD 2025 · 15 Jun 2025
- Shonan PM 2024 · 7 Dec 2024 — 1 personal best set
- Tokai Open AM 2024 · 15 Sep 2024 — 1 personal best set
- Katano Milky Way 2024 · 7 Jul 2024
- Hiroshima Winter 2024 · 10 Feb 2024 — 1 personal best set
- Tokyo Challenge VIII 2023 · 4 Nov 2023 — 1 personal best set
- Minatomirai 2022 · 29 Apr 2022 — 1 personal best set
- Japan Championship 2019 · 2 Nov 2019
- Kansai Summer 2019 · 1 Sep 2019 — 1 personal best set
- Kansai Open 2019 · 20 Apr 2019
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 her.
- Hajime Miyazaki (宮崎朔) — met in 22 rounds, never finished ahead
- Takayuki Tanaka (田中隆喜) — met in 20 rounds, never finished ahead
- Takumi Kato (加藤匠) — met in 20 rounds, never finished ahead
Next targets
- A sub-25 3×3 single — 149,621 people have one; it is 1.40 away.
- A sub-15 Pyraminx single — 105,805 people have one; it is 0.48 away.
Targets move as she improves.