People · Hong Kong, China
Lam Chi Yin (林知言)
3×3 · top 1.9% of 284,439 all-time · competing since August 2024 · 2024YINL02
Lam Chi Yin (林知言) has been competing for 2 years. His best event is the 3×3: a personal-best single of 7.48, set at Hong Kong Cube Day 2025, puts him in the top 1.9% of the 284,439 people who have ever been ranked in the event, and 45th in Hong Kong, China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 7 competitions since August 2024, he has put 221 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 13% around a typical one; 54% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. That figure sets aside his 4 DNFs. His 3×3 best has come down from 11.24 in August 2024 to 7.48, a 33% improvement. Lam has entered seven competitions, more competitions than 88% 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 | |
|---|---|---|---|---|---|
| 3×3 | 7.48 | 9.20 | top 1.9% | 45 / 1,347 | |
| 2×2 | 1.64 | 2.12 | top 2.8% | 39 / 855 | |
| 4×4 | 32.06 | 36.19 | top 4.2% | 42 / 423 | |
| Square-1 | 9.46 | 11.13 | top 5.2% | 18 / 126 | |
| 3×3 one-handed | 13.48 | 16.11 | top 5.2% | 30 / 361 | |
| Clock | 6.08 | 11.55 | top 7.5% | 27 / 156 | |
| Skewb | 4.12 | 5.97 | top 11.7% | 45 / 285 | |
| 5×5 | 1:17.20 | 1:21.85 | top 17.0% | 74 / 192 | |
| 3×3 blindfolded | 2:24.20 | — | early days — 1 solve | 43 / 65 |
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
- 2 May 2026Four personal bests in one day at Foshan Open 2026.
- 26 Apr 2026Four personal bests in one day at Odd Day in Hong Kong 2026.
- 7 Jun 2025First sub-10 3×3: 7.48 at Hong Kong Cube Day 2025.
- 7 Jun 2025Three personal bests in one day at Hong Kong Cube Day 2025.
- 16 Nov 2024Four personal bests in one day at Hong Kong Championship 2024.
- 31 Aug 2024First competition: Hong Kong Cube Day 2024. A 11.24 3×3 single to start from.
Competitions
- Foshan Open 2026 · 2 May 2026 — 4 personal bests set
- Odd Day in Hong Kong 2026 · 26 Apr 2026 — 4 personal bests set
- Hong Kong Championship 2025 · 15 Nov 2025 — 1 personal best set
- HKRCU 20th Anniversary 2025 · 20 Sep 2025
- Hong Kong Cube Day 2025 · 7 Jun 2025 — 3 personal bests set
- Hong Kong Championship 2024 · 16 Nov 2024 — 4 personal bests set
- Hong Kong Cube Day 2024 · 31 Aug 2024
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 46 rounds, finished ahead 7 times
- Shek Ho Hin (石灝軒) — met in 41 rounds, finished ahead 17 times
- Ko Ching Lam (高靖嵐) — met in 40 rounds, finished ahead 26 times
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 1.48 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.64 away.
Targets move as he improves.