People · Australia
Jettsen Kumasaka
2×2 · top 43.2% of 186,767 all-time · competing since November 2025 · 2025KUMA42
Jettsen Kumasaka has been competing for 10 months. His best event is the 2×2: a personal-best single of 5.32, set at Tramsheds X: Winter Saturday 2026, puts him in the top 43.2% of the 186,767 people who have ever been ranked in the event, and 3,397th in Australia. Across 3 competitions since November 2025, he has put 33 official solves on the record across three events. His 2×2 best has come down from 6.13 in November 2025 to 5.32, a 13% improvement. Jettsen 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 | Australia | |
|---|---|---|---|---|---|
| 2×2 | 5.32 | 6.53 | top 43.2% | 3,397 / 8,567 | |
| Pyraminx | 8.90 | 16.03 | top 44.0% | 2,420 / 5,993 | |
| 3×3 | 26.02 | 30.22 | top 54.8% | 5,830 / 11,709 |
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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 6 Jun 2026First sub-30 3×3: 26.02 at Tramsheds IX: June Saturday 2026.
- 8 Nov 2025First competition: Tramsheds VII: Spring Saturday 2025. A 40.66 3×3 single to start from.
Competitions
- Tramsheds X: Winter Saturday 2026 · 29 Aug 2026 — 1 personal best set
- Tramsheds IX: June Saturday 2026 · 6 Jun 2026 — 2 personal bests set
- Tramsheds VII: Spring Saturday 2025 · 8 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.
- Raphael Casha — met in 7 rounds, finished ahead 6 times
- Kenta Duong — met in 7 rounds, finished ahead once
- Jacob Davy — met in 7 rounds, never finished ahead
Next targets
- A sub-5 2×2 single — 73,413 people have one; it is 0.32 away.
- A sub-8 Pyraminx single — 46,752 people have one; it is 0.90 away.
Targets move as he improves.