People · Hong Kong, China
Cham Tin Lam (湛天藍)
3×3 · top 2.6% of 288,433 all-time · competing since March 2023 · 2023LAMC02
Cham Tin Lam (湛天藍) has been competing for 4 years. His best event is the 3×3: a personal-best single of 7.89, set at HKRCU 20th Anniversary 2025, puts him in the top 2.6% of the 288,433 people who have ever been ranked in the event, and 75th in Hong Kong, China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 8 competitions since March 2023, he has put 116 official solves on the record across four events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 56% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 9.94 in March 2023 to 7.89, a 21% improvement. Cham has entered eight competitions, more competitions than 90% 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 | 7.89 | 9.24 | top 2.6% | 75 / 1,424 | |
| 2×2 | 1.72 | 3.78 | top 3.2% | 46 / 880 | |
| 4×4 | 37.59 | 43.58 | top 9.4% | 84 / 447 | |
| 3×3 one-handed | 17.08 | 20.15 | top 12.8% | 78 / 384 |
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
- 4 Mar 2023First competition: Hong Kong Cube Day 2023. A 9.94 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
- Odd Day in Hong Kong 2026 · 26 Apr 2026
- Hong Kong Championship 2025 · 15 Nov 2025
- HKRCU 20th Anniversary 2025 · 20 Sep 2025 — 2 personal bests set
- Hong Kong Cube Day 2025 · 7 Jun 2025 — 1 personal best set
- Hong Kong Championship 2024 · 16 Nov 2024 — 1 personal best set
- Hong Kong Cube Day 2023 · 4 Mar 2023
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.
- Fung Hoi Yin (馮凱賢) — met in 23 rounds, finished ahead 5 times
- Timothy Kong Wing Sum (江永琛) — met in 23 rounds, never finished ahead
- Wan Chun Man (尹俊文) — met in 22 rounds, finished ahead 5 times
Next targets
- A sub-6 3×3 single — 1,419 people have one; it is 1.89 away.
- A sub-1 2×2 single — 1,050 people have one; it is 0.72 away.
Targets move as he improves.