People · Japan
Kounosuke Udou (有働幸之助)
3×3 · top 0.42% of 284,439 all-time · competing since September 2012 · 2012UDOU01
Kounosuke Udou (有働幸之助) has been competing for 14 years. His best event is the 3×3: a personal-best single of 5.88, set at Kanto Summer PM 2025, puts him in the top 0.42% of the 284,439 people who have ever been ranked in the event, and 12th in Japan. Until June 2011, no official 3×3 solve in the world had been that fast. Across 26 competitions since September 2012, he has put 265 official solves on the record across six events. Solve to solve, his 3×3 times vary about 13% around a typical one; 51% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 27.15 in September 2012 to 5.88, a 78% improvement. Kounosuke has entered 26 competitions, more competitions than 98% 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 | 5.88 | 7.64 | top 0.42% | 12 / 3,329 | |
| 3×3 one-handed | 15.42 | 17.77 | top 9.0% | 85 / 529 | |
| 4×4 | 38.88 | 41.74 | top 10.8% | 110 / 667 | |
| 5×5 | 1:10.37 | 1:24.48 | top 11.9% | 73 / 420 | |
| Megaminx | 1:03.72 | 1:08.24 | top 11.9% | 86 / 313 | |
| 2×2 | 6.03 | 8.22 | top 51.2% | 630 / 1,021 |
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
- 5 May 2018First sub-10 3×3: 8.91 at Tribox Open Spring 2018.
- 9 Oct 2016First sub-15 3×3: 12.06 at Japan Open 2016.
- 22 Feb 2014First sub-20 3×3: 17.86 at Kanto Open 2014.
- 16 Sep 2012First competition: Japan Open 2012. A 27.15 3×3 single to start from.
Competitions
- Kansai Mega Day 2026 · 1 Aug 2026 — 1 personal best set
- Kanto Spring 2026 · 17 May 2026
- Tokyo Spring 2026 · 5 Apr 2026
- Kanto Winter 2026 · 21 Feb 2026
- Shimonoseki 2025 · 28 Dec 2025
- Kanto Autumn AM 2025 · 11 Oct 2025
- Katano Summer 2025 · 15 Sep 2025
- Kanto Summer PM 2025 · 30 Aug 2025 — 1 personal best set
- Tokyo Summer 2025 · 21 Jul 2025
- Kanto Spring 2025 · 31 May 2025
- Tokai Spring 2025 · 12 Apr 2025
- Tokyo Open PM Winter 2025 · 16 Feb 2025 — 1 personal best set
- Tokyo Challenge VII 2023 · 4 Nov 2023 — 1 personal best set
- Ayase Summer 2023 · 17 Jul 2023
- Tokyo Challenge V 2023 · 9 Apr 2023
- Tokyo Challenge Winter B 2023 · 12 Feb 2023
- Ayase Autumn B 2022 · 6 Nov 2022 — 1 personal best set
- Ota Summer 2022 · 30 Jul 2022
- Minatomirai 2022 · 29 Apr 2022 — 2 personal bests set
- Japan Championship 2019 · 2 Nov 2019
- Tribox Open Spring 2019 · 28 Apr 2019 — 1 personal best set
- Japan Championship 2018 · 22 Dec 2018 — 1 personal best set
- Tribox Open Spring 2018 · 5 May 2018 — 1 personal best set
- Japan Open 2016 · 9 Oct 2016 — 2 personal bests set
- Kanto Open 2014 · 22 Feb 2014 — 2 personal bests set
- Japan Open 2012 · 16 Sep 2012
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 Tanaka (田中隆喜) — met in 29 rounds, finished ahead 25 times
- Takumi Kawazoe (川添匠) — met in 27 rounds, finished ahead 11 times
- Masayuki Hirai (平井雅之) — met in 26 rounds, finished ahead 21 times
Next targets
- A sub-5 3×3 single — 344 people have one; it is 0.88 away.
- A sub-15 3×3 one-handed single — 5,987 people have one; it is 0.42 away.
Targets move as he improves.