Saturday 24 October 2026 Rebuilt nightly from the WCA's official results · export of 24 October 2026 · About
The Middle Three
People → Hong Kong, China → Isaac Lau Chun Sang (劉俊生)

People · Hong Kong, China

Isaac Lau Chun Sang (劉俊生)

3×3 · top 14.9% of 288,433 all-time · competing since January 2019 · 2019SANG05

Isaac Lau Chun Sang (劉俊生) has been competing for 8 years. His best event is the 3×3: a personal-best single of 12.26, set at Hong Kong Cube Day 2019, puts him in the top 14.9% of the 288,433 people who have ever been ranked in the event, and 353rd in Hong Kong, China. Across 1 competition since January 2019, he has put 25 official solves on the record across five events.

3×3
best event — top 14.9% of 288,433 all-time
12.26
signature single · Hong Kong Cube Day 2019
25
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingHong Kong, China
3×312.2614.78
top 14.9%353 / 1,424
Pyraminx6.8710.65
top 26.8%177 / 448
3×3 one-handed23.2926.84
top 29.6%188 / 384
2×24.835.83
top 37.2%449 / 880
Skewb9.5911.36
top 52.4%200 / 293

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 story so far

Competitions

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.

Next targets

  • A sub-12 3×3 single — 40,277 people have one; it is 0.26 away.
  • A sub-6 Pyraminx single — 26,233 people have one; it is 0.87 away.

Targets move as he improves.