People · Japan
Koji Usami Cotter
3×3 · top 60.0% of 284,439 all-time · competing since March 2026 · 2026COTT03
Koji Usami Cotter has been competing for 6 months. His best event is the 3×3: a personal-best single of 28.60, set at Katano Spring 2026, puts him in the top 60.0% of the 284,439 people who have ever been ranked in the event, and 2,091st in Japan. Across 1 competition since March 2026, 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 | 28.60 | 33.29 | top 60.0% | 2,091 / 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
- 21 Mar 2026First competition: Katano Spring 2026. A 28.60 3×3 single to start from.
Competitions
- Katano Spring 2026 · 21 Mar 2026
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-25 3×3 single — 149,621 people have one; it is 3.60 away.
Targets move as he improves.