People · Japan
Shunya Ishikawa (石川隼也)
Skewb · top 0.43% of 74,164 all-time · competing since September 2024 · 2024ISHI06
Shunya Ishikawa (石川隼也) has been competing for 2 years. His best event is the Skewb: a personal-best single of 1.48, set at Katano Summer 2025, puts him in the top 0.43% of the 74,164 people who have ever been ranked in the event, and 2nd in Japan. Until October 2015, no official Skewb solve in the world had been that fast. Across 13 competitions since September 2024, he has put 308 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 14% around a typical one; 66% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His Skewb best has come down from 1.68 in March 2025 to 1.48, a 12% improvement. Shunya has entered 13 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 | |
|---|---|---|---|---|---|
| Skewb | 1.48 | 2.11 | top 0.43% | 2 / 354 | |
| 2×2 | 1.57 | 4.38 | top 2.5% | 33 / 1,026 | |
| Pyraminx | 2.83 | 3.98 | top 3.1% | 44 / 691 | |
| 3×3 | 8.62 | 10.59 | top 4.0% | 172 / 3,360 | |
| 4×4 | 34.15 | 39.52 | top 6.1% | 71 / 679 | |
| Megaminx | 53.80 | 1:04.38 | top 6.9% | 53 / 313 | |
| Clock | 5.94 | — | top 7.0% | 29 / 268 | |
| 3×3 one-handed | 15.80 | 18.70 | top 9.8% | 96 / 539 | |
| 5×5 | 1:11.17 | 1:15.20 | top 12.5% | 80 / 426 | |
| 6×6 | 2:08.58 | 2:23.47 | top 14.9% | 46 / 209 | |
| 3×3 blindfolded | 2:34.77 | — | early days — 2 solves | 174 / 285 |
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, Skewb. Faster is higher — the axis is the right way up.
The story so far
- 25 Jul 2026Three personal bests in one day at Maru Cube Day Taiwan 2026.
- 8 Nov 2025First sub-10 3×3: 9.65 at Ota Autumn 2025.
- 15 Sep 2024First competition: Tokai Open PM 2024. A 11.78 3×3 single to start from.
Competitions
- Tokai Autumn 2026 · 11 Oct 2026 — 2 personal bests set
- Otsu Biwako Autumn 2026 · 20 Sep 2026 — 1 personal best set
- Maru Cube Day Taiwan 2026 · 25 Jul 2026 — 3 personal bests set
- Japan Championship 2026 · 18 Jul 2026 — 1 personal best set
- Otsu Biwako Spring 2026 · 11 Apr 2026 — 2 personal bests set
- Katano Spring 2026 · 21 Mar 2026 — 1 personal best set
- Tokai Big Cubes 2025 · 14 Dec 2025 — 1 personal best set
- Ota Autumn 2025 · 8 Nov 2025 — 2 personal bests set
- Katano Summer 2025 · 15 Sep 2025 — 2 personal bests set
- Tokai Summer 2025 · 27 Jul 2025 — 2 personal bests set
- Tokai Spring 2025 · 12 Apr 2025
- Ota Spring 2025 · 20 Mar 2025 — 1 personal best set
- Tokai Open PM 2024 · 15 Sep 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.
- Kantaro Sakamoto (坂本貫太郎) — met in 60 rounds, finished ahead 24 times
- Takumi Kato (加藤匠) — met in 43 rounds, finished ahead 14 times
- Haruki Tsutsui (筒井遥規) — met in 40 rounds, finished ahead 11 times
Next targets
- A sub-1 Skewb single — 35 people have one; it is 0.48 away.
- A sub-1 2×2 single — 1,050 people have one; it is 0.57 away.
Targets move as he improves.