People · China
Kaiwen Du (杜楷文)
Pyraminx · top 4.0% of 129,321 all-time · competing since March 2024 · 2024DUKA01
Kaiwen Du (杜楷文) has been competing for 2 years. His best event is the Pyraminx: a personal-best single of 3.10, set at Hangzhou Open 2026, puts him in the top 4.0% of the 129,321 people who have ever been ranked in the event, and 477th in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 3 competitions since March 2024, he has put 82 official solves on the record across six events. Solve to solve, his 3×3 times vary about 9% around a typical one, an early reading from 5 counted rounds. His Pyraminx best has come down from 4.01 in November 2025 to 3.10, a 23% improvement. Kaiwen 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 | China | |
|---|---|---|---|---|---|
| Pyraminx | 3.10 | 4.71 | top 4.0% | 477 / 10,224 | |
| 3×3 | 9.12 | 10.43 | top 5.1% | 1,958 / 28,153 | |
| 2×2 | 2.40 | 4.15 | top 8.0% | 1,152 / 15,796 | |
| Skewb | 3.82 | 7.84 | top 9.7% | 566 / 5,004 | |
| 3×3 one-handed | 30.12 | — | early days — 2 solves | 4,130 / 5,922 | |
| Clock | 22.72 | 23.75 | top 71.9% | 1,541 / 1,843 |
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, Pyraminx. Faster is higher — the axis is the right way up.
The story so far
- 23 May 2026First sub-10 3×3: 9.12 at Hangzhou Open 2026.
- 23 May 2026Four personal bests in one day at Hangzhou Open 2026.
- 29 Nov 2025First sub-15 3×3: 11.75 at Hangzhou Winter 2025.
- 30 Mar 2024First competition: Huzhou Open 2024. A 19.23 3×3 single to start from.
Competitions
- Hangzhou Open 2026 · 23 May 2026 — 4 personal bests set
- Hangzhou Winter 2025 · 29 Nov 2025 — 2 personal bests set
- Huzhou Open 2024 · 30 Mar 2024
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.
- Zhedong Wang (王哲栋) — met in 21 rounds, finished ahead twice
- Chufan Cao (曹楚凡) — met in 19 rounds, never finished ahead
- Han Wang (汪涵) — met in 17 rounds, finished ahead 5 times
Next targets
- A sub-3 Pyraminx single — 4,700 people have one; it is 0.10 away.
- A sub-8 3×3 single — 7,931 people have one; it is 1.12 away.
Targets move as he improves.