People · Japan
Takeru Iguchi (井口丈瑠)
3×3 · top 0.59% of 284,439 all-time · competing since February 2023 · 2023IGUC01
Takeru Iguchi (井口丈瑠) has been competing for 4 years. His best event is the 3×3: a personal-best single of 6.16, set at Katano Spring 2026, puts him in the top 0.59% of the 284,439 people who have ever been ranked in the event, and 27th in Japan. Until June 2011, no official 3×3 solve in the world had been that fast. Across 23 competitions since February 2023, he has put 479 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 93% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 9.46 in February 2023 to 6.16, a 35% improvement. Takeru has entered 23 competitions, more competitions than 97% 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 | 6.16 | 7.51 | top 0.59% | 27 / 3,329 | |
| 4×4 | 25.75 | 29.04 | top 0.92% | 13 / 667 | |
| 2×2 | 1.16 | 2.06 | top 0.92% | 7 / 1,021 | |
| 5×5 | 46.56 | 51.33 | top 0.94% | 7 / 420 | |
| 7×7 | 2:10.24 | 2:21.45 | top 1.2% | 3 / 188 | |
| 6×6 | 1:28.06 | 1:31.17 | top 1.6% | 4 / 209 | |
| 3×3 one-handed | 12.31 | 14.24 | top 3.4% | 43 / 529 | |
| Megaminx | 51.85 | 55.21 | top 5.9% | 42 / 313 | |
| Square-1 | 13.15 | 17.87 | top 12.2% | 47 / 245 | |
| Pyraminx | 4.94 | 6.79 | top 12.8% | 157 / 688 | |
| Skewb | 5.73 | 7.76 | top 23.7% | 121 / 338 | |
| Clock | 15.73 | 17.61 | top 50.8% | 178 / 263 |
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
- 21 Mar 2026Four personal bests in one day at Katano Spring 2026.
- 24 Aug 2025Four personal bests in one day at Kansai Parity Party 2025.
- 21 Jul 2025Four personal bests in one day at Tokyo Summer 2025.
- 20 Mar 2025Four personal bests in one day at Ota Spring 2025.
- 10 Feb 2024Three personal bests in one day at Hiroshima Winter 2024.
- 12 Feb 2023First competition: Go x Go Kyoto 2023. A 9.46 3×3 single to start from.
Competitions
- Japan Championship 2026 · 18 Jul 2026
- Tokyo Summer 2026 · 13 Jun 2026 — 1 personal best set
- Kansai BLD Summer 2026 · 6 Jun 2026
- Otsu Biwako Spring 2026 · 11 Apr 2026 — 1 personal best set
- Katano Spring 2026 · 21 Mar 2026 — 4 personal bests set
- Shimonoseki 2025 · 28 Dec 2025
- Tokai Big Cubes 2025 · 14 Dec 2025 — 2 personal bests set
- Katano Summer 2025 · 15 Sep 2025
- Kansai Parity Party 2025 · 24 Aug 2025 — 4 personal bests set
- Tokai Summer 2025 · 27 Jul 2025 — 1 personal best set
- Tokyo Summer 2025 · 21 Jul 2025 — 4 personal bests set
- Kansai Odd and BLD 2025 · 15 Jun 2025 — 1 personal best set
- Tokai Spring 2025 · 12 Apr 2025 — 1 personal best set
- Ota Spring 2025 · 20 Mar 2025 — 4 personal bests set
- Tokai Open PM 2024 · 15 Sep 2024 — 1 personal best set
- Katano Milky Way 2024 · 7 Jul 2024
- Kanazawa 2024 · 25 May 2024 — 2 personal bests set
- Hiroshima Winter 2024 · 10 Feb 2024 — 3 personal bests set
- Otsu Biwako Autumn 2023 · 23 Sep 2023 — 2 personal bests set
- Ayase Summer 2023 · 17 Jul 2023 — 2 personal bests set
- Kanazawa Challenge Spring PM 2023 · 27 May 2023
- Hiroshima Spring 2023 · 25 Mar 2023
- Go x Go Kyoto 2023 · 12 Feb 2023
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.
- Kohdai Kusatani (草谷幸大) — met in 88 rounds, finished ahead 46 times
- Tomohiro Kobayashi (小林知広) — met in 81 rounds, finished ahead 46 times
- Takayuki Tanaka (田中隆喜) — met in 74 rounds, finished ahead 57 times
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 0.16 away.
- A sub-25 4×4 single — 588 people have one; it is 0.75 away.
Targets move as he improves.