People · Japan
Soma Kosaka
3×3 · top 47.2% of 288,433 all-time · competing since November 2025 · 2025KOSA03
Soma Kosaka has been competing for 11 months. His best event is the 3×3: a personal-best single of 22.64, set at Waterloo Fall 2025, puts him in the top 47.2% of the 288,433 people who have ever been ranked in the event, and 1,721st in Japan. Across 1 competition since November 2025, he has put 11 official solves on the record across three events.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 3×3 | 22.64 | 28.86 | top 47.2% | 1,721 / 3,360 | |
| Skewb | 11.28 | 13.00 | top 62.3% | 280 / 354 | |
| Clock | 22.40 | — | early days — 1 solve | 237 / 268 |
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
- 29 Nov 2025First competition: Waterloo Fall 2025. A 22.64 3×3 single to start from.
Competitions
- Waterloo Fall 2025 · 29 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.
The circuit
The people whose scorecards keep turning up next to his.
- Mehaan Verma — met in 3 rounds, finished ahead twice
- David Harrison-Perez — met in 3 rounds, finished ahead twice
- Leo Hourahine — met in 3 rounds, finished ahead twice
Next targets
- A sub-20 3×3 single — 115,495 people have one; it is 2.64 away.
- A sub-10 Skewb single — 40,788 people have one; it is 1.28 away.
Targets move as he improves.