People · China
Jiacheng Lou (楼嘉铖)
3×3 · top 9.0% of 284,439 all-time · competing since May 2025 · 2025LOUJ01
Jiacheng Lou (楼嘉铖) has been competing for a year. His best event is the 3×3: a personal-best single of 10.52, set at Ningbo Autumn 2025, puts him in the top 9.0% of the 284,439 people who have ever been ranked in the event, and 3,519th in China. Until August 2006, no official 3×3 solve in the world had been that fast. Across 13 competitions since May 2025, he has put 155 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 13% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 14.15 in May 2025 to 10.52, a 26% improvement. Jiacheng has entered 13 competitions, more competitions than 94% 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 | 10.52 | 14.40 | top 9.0% | 3,519 / 28,153 | |
| Pyraminx | 5.70 | 8.94 | top 17.8% | 2,055 / 10,224 | |
| 4×4 | 48.48 | 53.39 | top 22.7% | 2,447 / 5,926 | |
| Clock | 9.94 | 11.27 | top 24.8% | 561 / 1,843 | |
| Skewb | 5.91 | 9.14 | top 25.1% | 1,548 / 5,004 | |
| 3×3 Fewest Moves | 34 moves | 38.00 | top 26.7% | 289 / 1,058 | |
| 5×5 | 1:32.23 | 1:39.42 | top 29.1% | 1,321 / 2,816 | |
| 2×2 | 4.29 | 4.98 | top 30.2% | 5,183 / 15,796 | |
| Square-1 | 22.57 | 27.33 | top 33.7% | 572 / 1,362 | |
| 3×3 one-handed | 25.85 | 32.49 | top 36.4% | 3,427 / 5,922 | |
| 6×6 | 2:56.77 | 3:05.08 | top 39.5% | 796 / 1,349 | |
| Megaminx | 1:51.95 | — | early days — 3 solves | 1,172 / 1,678 | |
| 7×7 | 5:07.71 | — | early days — 3 solves | 920 / 1,261 | |
| 3×3 blindfolded | 5:27.94 | — | early days — 1 solve | 1,105 / 1,183 |
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
- 25 May 2025First competition: Lishui Open 2025. A 14.15 3×3 single to start from.
Competitions
- Hangzhou Open 2026 · 23 May 2026
- Xianju Special 2026 · 8 Mar 2026 — 1 personal best set
- Quanzhou Big Cubes 2026 · 1 Mar 2026 — 1 personal best set
- Guangzhou Big Cubes 2025 · 21 Dec 2025 — 2 personal bests set
- FMC under the Mistletoe 2025 · 20 Dec 2025
- FMC Cubing China 2025 · 20 Dec 2025 — 1 personal best set
- Guangzhou Special 2025 · 8 Nov 2025 — 2 personal bests set
- Beijing University Cube League 2025 · 25 Oct 2025 — 2 personal bests set
- Ningbo Autumn 2025 · 13 Sep 2025 — 2 personal bests set
- FMC Asia 2025 · 27 Jul 2025
- Taizhou Open 2025 · 26 Jul 2025 — 2 personal bests set
- Xi'an Summer 2025 · 19 Jul 2025
- Lishui Open 2025 · 25 May 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.
- Haidong Feng (冯海栋) — met in 26 rounds, never finished ahead
- Haohan Zheng (郑皓涵) — met in 23 rounds, finished ahead once
- Zhedong Wang (王哲栋) — met in 22 rounds, finished ahead twice
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 0.52 away.
- A sub-5 Pyraminx single — 17,019 people have one; it is 0.70 away.
Targets move as he improves.