Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Hong Kong, China → David Choi Pui Chit (蔡培哲)

People · Hong Kong, China

David Choi Pui Chit (蔡培哲)

2×2 · top 20.6% of 186,767 all-time · competing since November 2024 · 2024CHIT11

David Choi Pui Chit (蔡培哲) has been competing for a year. His best event is the 2×2: a personal-best single of 3.53, set at Hong Kong Cube Day 2025, puts him in the top 20.6% of the 186,767 people who have ever been ranked in the event, and 242nd in Hong Kong, China. Across 2 competitions since November 2024, he has put 20 official solves on the record across two events. His 2×2 best has come down from 6.70 in November 2024 to 3.53, a 47% improvement. David has entered two competitions.

2×2
best event — top 20.6% of 186,767 all-time
3.53
signature single · Hong Kong Cube Day 2025
20
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingHong Kong, China
2×23.535.26
top 20.6%242 / 855
3×314.6216.54
top 23.1%492 / 1,347

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

Hong Kong Championship 2024: 6.70Hong Kong Cube Day 2025: 3.533.536.7016 Nov 20247 Jun 2025

Best single per competition, 2×2. 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.

Next targets

  • A sub-3 2×2 single — 26,570 people have one; it is 0.53 away.
  • A sub-12 3×3 single — 39,535 people have one; it is 2.62 away.

Targets move as he improves.