People · Japan
Riku Koshizaki (越崎凌久)
3×3 · top 2.9% of 284,439 all-time · competing since February 2023 · 2023KOSH01
Riku Koshizaki (越崎凌久) has been competing for 4 years. His best event is the 3×3: a personal-best single of 8.06, set at Kanazawa Challenge Spring PM 2023, puts him in the top 2.9% of the 284,439 people who have ever been ranked in the event, and 124th in Japan. Until July 2008, no official 3×3 solve in the world had been that fast. Across 2 competitions since February 2023, he has put 25 official solves on the record across three events. His 3×3 best has come down from 9.14 in February 2023 to 8.06, a 12% improvement. Riku has entered two competitions.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 3×3 | 8.06 | 10.91 | top 2.9% | 124 / 3,329 | |
| 4×4 | 39.77 | 45.01 | top 11.9% | 120 / 667 | |
| 5×5 | 1:15.68 | 1:28.62 | top 15.9% | 100 / 420 |
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
- 12 Feb 2023First competition: Go x Go Kyoto 2023. A 9.14 3×3 single to start from.
Competitions
- Kanazawa Challenge Spring PM 2023 · 27 May 2023 — 1 personal best set
- 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.
- Takayuki Tanaka (田中隆喜) — met in 5 rounds, finished ahead twice
- Yusuke Takada (高田祐介) — met in 5 rounds, finished ahead once
- Tomohiro Kobayashi (小林知広) — met in 5 rounds, never finished ahead
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 0.06 away.
- A sub-30 4×4 single — 2,388 people have one; it is 9.77 away.
Targets move as he improves.