People · Japan
Yuji Ishii (石井佑嗣)
3×3 · top 0.96% of 284,439 all-time · competing since December 2020 · 2020ISHI01
Yuji Ishii (石井佑嗣) has been competing for 6 years. His best event is the 3×3: a personal-best single of 6.63, set at Kanto Autumn PM 2025, puts him in the top 0.96% of the 284,439 people who have ever been ranked in the event, and 42nd in Japan. Until May 2011, no official 3×3 solve in the world had been that fast. Across 12 competitions since December 2020, he has put 159 official solves on the record across six events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 65% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 23.12 in December 2020 to 6.63, a 71% improvement. Yuji has entered twelve competitions, more competitions than 94% 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 | 6.63 | 8.27 | top 0.96% | 42 / 3,329 | |
| 3×3 one-handed | 15.22 | 18.60 | top 8.6% | 83 / 529 | |
| Megaminx | 1:02.90 | 1:12.47 | top 11.5% | 84 / 313 | |
| Pyraminx | 4.84 | 6.05 | top 12.2% | 150 / 688 | |
| 2×2 | 3.33 | 3.87 | top 18.1% | 232 / 1,021 | |
| Skewb | 6.37 | 8.28 | top 28.7% | 145 / 338 |
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
- 29 Apr 2022First sub-20 3×3: 8.62 at Minatomirai 2022.
- 29 Apr 2022First sub-15 3×3: 8.62 at Minatomirai 2022.
- 29 Apr 2022First sub-10 3×3: 8.62 at Minatomirai 2022.
- 26 Dec 2020First competition: Welcome Back Ayase Winter 2020. A 23.12 3×3 single to start from.
Competitions
- Japan Championship 2026 · 18 Jul 2026 — 1 personal best set
- Kanto Autumn PM 2025 · 11 Oct 2025 — 1 personal best set
- Shonan AM 2024 · 7 Dec 2024
- Hiroshima Winter 2024 · 10 Feb 2024 — 1 personal best set
- Tokyo Challenge VIII 2023 · 4 Nov 2023
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 1 personal best set
- Tokyo Challenge V 2023 · 9 Apr 2023
- Tokyo Challenge Winter C 2023 · 12 Feb 2023 — 1 personal best set
- Ayase Autumn A 2022 · 3 Nov 2022
- Yoga Summer A 2022 · 21 Aug 2022
- Minatomirai 2022 · 29 Apr 2022 — 1 personal best set
- Welcome Back Ayase Winter 2020 · 26 Dec 2020
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 20 rounds, finished ahead 5 times
- Shuto Ueno (上野柊斗) — met in 15 rounds, finished ahead 3 times
- Kohdai Kusatani (草谷幸大) — met in 15 rounds, finished ahead twice
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 0.63 away.
- A sub-15 3×3 one-handed single — 5,987 people have one; it is 0.22 away.
Targets move as he improves.