Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Canada → Ambrose Chau

People · Canada

Ambrose Chau

3×3 · top 64.1% of 284,439 all-time · competing since February 2023 · 2023CHAU05

Ambrose Chau has been competing for 4 years. His best event is the 3×3: a personal-best single of 30.90, set at Waterloo Favourites B 2023, puts him in the top 64.1% of the 284,439 people who have ever been ranked in the event, and 6,860th in Canada. Across 2 competitions since February 2023, he has put 14 official solves on the record across two events. Ambrose has entered two competitions.

3×3
best event — top 64.1% of 284,439 all-time
30.90
signature single · Waterloo Favourites B 2023
14
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingCanada
3×330.9035.15
top 64.1%6,860 / 10,392
4×42:11.31
top 86.3%2,641 / 3,118

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

Waterloo Favourites B 2023: 30.90Southern Ontario Summer - Waterloo 2023: 32.8330.9032.8319 Feb 202324 Jun 2023

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

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.

  • Daniel Shen — met in 4 rounds, finished ahead twice
  • Max Sun — met in 4 rounds, never finished ahead
  • Liam O'Leary — met in 4 rounds, never finished ahead

Next targets

  • A sub-30 3×3 single — 177,856 people have one; it is 0.90 away.
  • A sub-2:00 4×4 single — 68,574 people have one; it is 11.31 away.

Targets move as he improves.