People · China
Erchuan Chen (陈尔川)
3×3 · top 2.3% of 284,439 all-time · competing since July 2025 · 2025CHEE02
Erchuan Chen (陈尔川) has been competing for a year. His best event is the 3×3: a personal-best single of 7.72, set at Fuzhou Summer 2026, puts him in the top 2.3% of the 284,439 people who have ever been ranked in the event, and 836th in China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 3 competitions since July 2025, he has put 58 official solves on the record across five events. Solve to solve, his 3×3 times vary about 14% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 9.80 in July 2025 to 7.72, a 21% improvement. Erchuan 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 | |
|---|---|---|---|---|---|
| 3×3 | 7.72 | 8.80 | top 2.3% | 836 / 28,153 | |
| 4×4 | 35.91 | 42.63 | top 7.6% | 778 / 5,926 | |
| 2×2 | 2.57 | 3.18 | top 9.6% | 1,445 / 15,796 | |
| 3×3 one-handed | 16.00 | 20.14 | top 10.2% | 997 / 5,922 | |
| Pyraminx | 6.95 | 9.83 | top 27.5% | 3,068 / 10,224 |
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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 17 Jan 2026Three personal bests in one day at Fuzhou Open 2026.
- 19 Jul 2025First competition: Xi'an Summer 2025. A 9.80 3×3 single to start from.
Competitions
- Fuzhou Summer 2026 · 23 Aug 2026 — 1 personal best set
- Fuzhou Open 2026 · 17 Jan 2026 — 3 personal bests set
- Xi'an Summer 2025 · 19 Jul 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.
- Haohan Zheng (郑皓涵) — met in 9 rounds, finished ahead 5 times
- Weiming Xu (徐伟明) — met in 8 rounds, finished ahead 6 times
- Haoting Jiang (蒋昊庭) — met in 8 rounds, finished ahead 6 times
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 1.72 away.
- A sub-30 4×4 single — 2,388 people have one; it is 5.91 away.
Targets move as he improves.