People · Hong Kong, China
Jeco Lau Chun Kiu (劉俊僑)
4×4 · top 1.1% of 85,040 all-time · competing since January 2019 · 2019KIUJ01
Jeco Lau Chun Kiu (劉俊僑) has been competing for 8 years. His best event is the 4×4: a personal-best single of 26.33, set at Hong Kong Cube Day 2026, puts him in the top 1.1% of the 85,040 people who have ever been ranked in the event, and 11th in Hong Kong, China. Until June 2013, no official 4×4 solve in the world had been that fast. Across 12 competitions since January 2019, he has put 170 official solves on the record across six events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 9 counted rounds. His 4×4 best has come down from 1:51.74 in January 2019 to 26.33, a 76% improvement. Jeco has entered twelve 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 | Hong Kong, China | |
|---|---|---|---|---|---|
| 4×4 | 26.33 | 32.60 | top 1.1% | 11 / 447 | |
| 5×5 | 58.47 | 1:03.80 | top 4.8% | 23 / 196 | |
| 3×3 | 9.92 | 11.60 | top 7.3% | 196 / 1,424 | |
| 2×2 | 2.96 | 4.11 | top 13.8% | 175 / 880 | |
| 6×6 | 2:15.34 | 2:17.23 | top 18.3% | 38 / 90 | |
| 7×7 | 3:37.18 | 3:46.37 | top 22.3% | 32 / 74 |
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, 4×4. Faster is higher — the axis is the right way up.
The story so far
- 2 May 2026First sub-10 3×3: 9.92 at Foshan Open 2026.
- 2 May 2026Three personal bests in one day at Foshan Open 2026.
- 31 Aug 2024First sub-20 3×3: 13.36 at Hong Kong Cube Day 2024.
- 31 Aug 2024First sub-15 3×3: 13.36 at Hong Kong Cube Day 2024.
- 31 Aug 2024Three personal bests in one day at Hong Kong Cube Day 2024.
- 26 Jan 2019First competition: Hong Kong Cube Day 2019. A 23.98 3×3 single to start from.
Competitions
- Hong Kong Autumn Cube Day 2026 · 17 Oct 2026
- Hong Kong Cube Day 2026 · 12 Sep 2026 — 1 personal best set
- Guangzhou Big Cubes 2026 · 20 Jun 2026 — 2 personal bests set
- Foshan Open 2026 · 2 May 2026 — 3 personal bests set
- Odd Day in Hong Kong 2026 · 26 Apr 2026 — 1 personal best set
- Zhuhai Pi Day 2026 · 14 Mar 2026 — 2 personal bests set
- Guangdong Open - Revival & Rival 2026 · 6 Feb 2026 — 1 personal best set
- Hong Kong Championship 2025 · 15 Nov 2025 — 2 personal bests set
- Please No Tips Singapore June 2025 · 15 Jun 2025
- Hong Kong Cube Day 2025 · 7 Jun 2025 — 2 personal bests set
- Hong Kong Cube Day 2024 · 31 Aug 2024 — 3 personal bests set
- Hong Kong Cube Day 2019 · 26 Jan 2019
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.
- Andy Mok Man Cheuk (莫文卓) — met in 30 rounds, never finished ahead
- Ryan Tang Chi Hang (鄧智恒) — met in 27 rounds, finished ahead 10 times
- Zijian Cai (蔡子健) — met in 26 rounds, never finished ahead
Next targets
- A sub-25 4×4 single — 614 people have one; it is 1.33 away.
- A sub-50 5×5 single — 733 people have one; it is 8.47 away.
Targets move as he improves.