People · Malaysia
Sumida Kohei
3×3 · top 7.6% of 288,433 all-time · competing since September 2019 · 2019KOHE01
Sumida Kohei has been competing for 7 years. His best event is the 3×3: a personal-best single of 10.03, set at Malaysia Cube Championship 2019, puts him in the top 7.6% of the 288,433 people who have ever been ranked in the event, and 382nd in Malaysia. Until May 2007, no official 3×3 solve in the world had been that fast. Across 3 competitions since September 2019, he has put 70 official solves on the record across six events. His 3×3 best has come down from 12.64 in September 2019 to 10.03, a 21% improvement. Sumida has entered three competitions, more competitions than 69% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Malaysia | |
|---|---|---|---|---|---|
| 3×3 | 10.03 | 13.24 | top 7.6% | 382 / 3,825 | |
| Skewb | 4.49 | 6.82 | top 14.4% | 164 / 1,065 | |
| 2×2 | 3.25 | 4.53 | top 17.3% | 479 / 2,582 | |
| 3×3 one-handed | 20.61 | 25.29 | top 22.2% | 327 / 1,350 | |
| Square-1 | 21.19 | 22.85 | top 30.7% | 130 / 365 | |
| 4×4 | 1:01.65 | 1:15.59 | top 38.3% | 596 / 1,228 |
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
- 22 Nov 2019Three personal bests in one day at Malaysia Cube Championship 2019.
- 21 Sep 2019First competition: Singapore MentalMatrix Open 2019. A 12.64 3×3 single to start from.
Competitions
- Malaysia Cube Championship 2019 · 22 Nov 2019 — 3 personal bests set
- Singapore Mini 2019 · 16 Nov 2019 — 2 personal bests set
- Singapore MentalMatrix Open 2019 · 21 Sep 2019
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.
- Wilson Alvis (陈智胜) — met in 14 rounds, finished ahead 4 times
- Tristan Chua Yong — met in 14 rounds, never finished ahead
- Tee Kai Long — met in 11 rounds, finished ahead 7 times
Next targets
- A sub-10 3×3 single — 21,606 people have one; it is 0.03 away.
- A sub-4 Skewb single — 8,121 people have one; it is 0.49 away.
Targets move as he improves.