People · China
Jiacheng Dong (董嘉铖)
Pyraminx · top 22.7% of 129,321 all-time · competing since July 2017 · 2017DONG14
Jiacheng Dong (董嘉铖) has been competing for 9 years. His best event is the Pyraminx: a personal-best single of 6.36, set at Quanzhou Open 2017, puts him in the top 22.7% of the 129,321 people who have ever been ranked in the event, and 2,595th in China. Across 3 competitions since July 2017, he has put 51 official solves on the record across seven events. Jiacheng 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 | 6.36 | 10.08 | top 22.7% | 2,595 / 10,224 | |
| 3×3 | 17.18 | 19.34 | top 31.6% | 11,488 / 28,153 | |
| Skewb | 7.21 | 9.62 | top 35.3% | 2,148 / 5,004 | |
| 2×2 | 4.83 | 8.83 | top 37.2% | 6,404 / 15,796 | |
| 4×4 | 1:17.00 | 1:26.45 | top 53.4% | 4,702 / 5,926 | |
| 3×3 one-handed | 37.11 | 39.66 | top 61.0% | 4,926 / 5,922 | |
| Megaminx | 3:22.05 | — | early days — 1 solve | 1,603 / 1,678 |
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
- 1 Aug 2026First sub-20 3×3: 17.18 at Shanghai Summer 2026.
- 2 Jul 2017First competition: Quanzhou Open 2017. A 24.81 3×3 single to start from.
Competitions
- Shanghai Summer 2026 · 1 Aug 2026 — 2 personal bests set
- Dalian Winter 2017 · 3 Dec 2017 — 1 personal best set
- Quanzhou Open 2017 · 2 Jul 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.
- Ziyue Chen (陈子悦) — met in 7 rounds, finished ahead 4 times
- Jieze Jiang (蒋杰泽) — met in 7 rounds, finished ahead 3 times
- Chen Chun Tat (陳俊達) — met in 7 rounds, finished ahead 3 times
Next targets
- A sub-6 Pyraminx single — 25,870 people have one; it is 0.36 away.
- A sub-15 3×3 single — 69,493 people have one; it is 2.18 away.
Targets move as he improves.