People · Japan
Ryunosuke Koishi (小石龍之介)
3×3 · top 49.3% of 284,439 all-time · competing since November 2025 · 2025KOIS01
Ryunosuke Koishi (小石龍之介) has been competing for 10 months. His best event is the 3×3: a personal-best single of 23.58, set at Kansai Mega Day 2025, puts him in the top 49.3% of the 284,439 people who have ever been ranked in the event, and 1,784th in Japan. Across 1 competition since November 2025, he has put 5 official solves on the record across one event.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 3×3 | 23.58 | 27.32 | top 49.3% | 1,784 / 3,329 |
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 story so far
- 2 Nov 2025First competition: Kansai Mega Day 2025. A 23.58 3×3 single to start from.
Competitions
- Kansai Mega Day 2025 · 2 Nov 2025
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.
Next targets
- A sub-20 3×3 single — 113,584 people have one; it is 3.58 away.
Targets move as he improves.