People · China
Chengsi Xu (徐成思)
3×3 · top 19.5% of 284,439 all-time · competing since November 2017 · 2017XUCH03
Chengsi Xu (徐成思) has been competing for 9 years. His best event is the 3×3: a personal-best single of 13.59, set at Nanchang Spring 2025, puts him in the top 19.5% of the 284,439 people who have ever been ranked in the event, and 7,594th in China. Across 5 competitions since November 2017, he has put 45 official solves on the record across three events. Solve to solve, his 3×3 times vary about 13% around a typical one, an early reading from 6 counted rounds. That figure sets aside his 2 DNFs. His 3×3 best has come down from 26.86 in November 2017 to 13.59, a 49% improvement. Chengsi has entered five competitions, more competitions than 83% 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 | 13.59 | 16.92 | top 19.5% | 7,594 / 28,153 | |
| 3×3 one-handed | 28.45 | 32.82 | top 43.0% | 3,892 / 5,922 | |
| 2×2 | 5.59 | 7.23 | top 46.4% | 7,959 / 15,796 |
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
- 21 Dec 2019First sub-20 3×3: 15.65 at Nanchang Winter 2019.
- 21 Dec 2019First sub-15 3×3: 14.76 at Nanchang Winter 2019.
- 21 Dec 2019Three personal bests in one day at Nanchang Winter 2019.
- 11 Nov 2017First competition: Nanchang Open 2017. A 26.86 3×3 single to start from.
Competitions
- Hefei Cubing League 3x3 I 2026 · 20 May 2026
- Nanchang Spring 2025 · 26 Apr 2025 — 1 personal best set
- Nanchang Good Afternoon 2021 · 2 Jan 2021
- Nanchang Winter 2019 · 21 Dec 2019 — 3 personal bests set
- Nanchang Open 2017 · 11 Nov 2017
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.
- Xinyun Chen (陈新运) — met in 8 rounds, never finished ahead
- Yusheng Du (杜宇生) — met in 7 rounds, never finished ahead
- Baocheng Wu (吴宝城) — met in 6 rounds, never finished ahead
Next targets
- A sub-12 3×3 single — 39,535 people have one; it is 1.59 away.
- A sub-25 3×3 one-handed single — 25,198 people have one; it is 3.45 away.
Targets move as he improves.