People · Japan
Kuga Iwasa (岩佐空芽)
3×3 · top 15.8% of 288,433 all-time · competing since July 2024 · 2024IWAS01
Kuga Iwasa (岩佐空芽) has been competing for 2 years. His best event is the 3×3: a personal-best single of 12.52, set at Katano Summer 2025, puts him in the top 15.8% of the 288,433 people who have ever been ranked in the event, and 673rd in Japan. Across 9 competitions since July 2024, he has put 60 official solves on the record across two events. Solve to solve, his 3×3 times vary about 15% around a typical one; 87% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 17.59 in July 2024 to 12.52, a 29% improvement. Kuga has entered nine competitions, more competitions than 91% 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 | 12.52 | 15.11 | top 15.8% | 673 / 3,360 | |
| 2×2 | 7.55 | 9.05 | top 64.7% | 746 / 1,026 |
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
- 15 Sep 2024First sub-15 3×3: 13.69 at Tokai Open PM 2024.
- 7 Jul 2024First competition: Katano Milky Way 2024. A 17.59 3×3 single to start from.
Competitions
- Otsu Biwako Spring 2026 · 11 Apr 2026
- Katano Spring 2026 · 21 Mar 2026
- Otsu Biwako Winter 2026 · 1 Feb 2026
- Tokyo Winter 2025 · 7 Dec 2025
- Kansai Mega Day 2025 · 2 Nov 2025
- Katano Summer 2025 · 15 Sep 2025 — 1 personal best set
- Shonan PM 2024 · 7 Dec 2024 — 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.
- Takayuki Ookusa (大艸尊之) — met in 11 rounds, never finished ahead
- Takayuki Tanaka (田中隆喜) — met in 11 rounds, never finished ahead
- Yuichi Hamada (濵田祐一) — met in 10 rounds, finished ahead 9 times
Next targets
- A sub-12 3×3 single — 40,277 people have one; it is 0.52 away.
- A sub-6 2×2 single — 96,384 people have one; it is 1.55 away.
Targets move as he improves.