People · Hong Kong, China
Lam Chi Yin (林知言)
2×2 · top 0.99% of 189,179 all-time · competing since August 2024 · 2024YINL02
Lam Chi Yin (林知言) has been competing for 2 years. His best event is the 2×2: a personal-best single of 1.18, set at Hong Kong Cube Day 2026, puts him in the top 0.99% of the 189,179 people who have ever been ranked in the event, and 15th in Hong Kong, China. Until November 2008, no official 2×2 solve in the world had been that fast. Across 9 competitions since August 2024, he has put 300 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 59% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 11.24 in August 2024 to 7.48, a 33% improvement. Lam has entered nine competitions, more competitions than 91% 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 | |
|---|---|---|---|---|---|
| 2×2 | 1.18 | 2.07 | top 0.99% | 15 / 880 | |
| 3×3 | 7.48 | 9.20 | top 2.0% | 51 / 1,424 | |
| 4×4 | 31.90 | 36.19 | top 4.2% | 46 / 447 | |
| 3×3 one-handed | 13.20 | 14.01 | top 4.8% | 28 / 384 | |
| Pyraminx | 3.33 | 4.80 | top 4.8% | 37 / 448 | |
| Square-1 | 9.46 | 11.13 | top 5.2% | 18 / 127 | |
| Clock | 6.08 | 11.55 | top 7.5% | 27 / 159 | |
| Skewb | 4.12 | 5.97 | top 11.8% | 48 / 293 | |
| Megaminx | 1:10.28 | 1:21.25 | top 15.8% | 44 / 169 | |
| 5×5 | 1:17.20 | 1:21.85 | top 17.1% | 76 / 196 | |
| 3×3 blindfolded | 2:24.20 | — | early days — 1 solve | 45 / 67 |
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
- Hong Kong Autumn Cube Day 2026 · 17 Oct 2026 — 1 personal best set
- Hong Kong Cube Day 2026 · 12 Sep 2026 — 2 personal bests set
- 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 54 rounds, finished ahead 10 times
- Ko Ching Lam (高靖嵐) — met in 50 rounds, finished ahead 33 times
- Antonio Li Ka Ming (李家銘) — met in 49 rounds, finished ahead 33 times
Next targets
- A sub-1 2×2 single — 1,050 people have one; it is 0.18 away.
- A sub-6 3×3 single — 1,419 people have one; it is 1.48 away.
Targets move as he improves.