People · Hong Kong, China
Cham Tin Lam (湛天藍)
3×3 · top 2.6% of 284,439 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 284,439 people who have ever been ranked in the event, and 71st in Hong Kong, China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 6 competitions since March 2023, he has put 76 official solves on the record across three events. Solve to solve, his 3×3 times vary about 13% around a typical one; 60% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 9.94 in March 2023 to 7.89, a 21% improvement. Cham has entered six competitions, more competitions than 86% 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 | 9.70 | top 2.6% | 71 / 1,347 | |
| 2×2 | 1.72 | 3.78 | top 3.2% | 43 / 855 | |
| 4×4 | 56.15 | — | early days — 2 solves | 206 / 423 |
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
- 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.
- Yang Pin Xiu (楊品修) — met in 16 rounds, finished ahead twice
- Chan Sai Chong (陳世聰) — met in 16 rounds, never finished ahead
- Wan Chun Man (尹俊文) — met in 15 rounds, finished ahead 4 times
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 1.89 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.72 away.
Targets move as he improves.