Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → China → Chengyu Cao (曹呈宇)

People · China

Chengyu Cao (曹呈宇)

3×3 · top 26.9% of 284,439 all-time · competing since June 2018 · 2018CAOC02

Chengyu Cao (曹呈宇) has been competing for 8 years. His best event is the 3×3: a personal-best single of 15.73, set at Huzhou Open 2024, puts him in the top 26.9% of the 284,439 people who have ever been ranked in the event, and 10,042nd in China. Across 2 competitions since June 2018, he has put 22 official solves on the record across four events. His 3×3 best has come down from 25.96 in June 2018 to 15.73, a 39% improvement. Chengyu has entered two competitions.

3×3
best event — top 26.9% of 284,439 all-time
15.73
signature single · Huzhou Open 2024
22
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
3×315.7322.60
top 26.9%10,042 / 28,153
2×26.648.92
top 57.3%9,691 / 15,796
Skewb11.0517.16
top 61.1%3,327 / 5,004
Pyraminx21.00
early days — 2 solves9,368 / 10,224

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

Xuzhou Open 2018: 25.96Huzhou Open 2024: 15.7315.7325.9617 Jun 201830 Mar 2024

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.

Next targets

  • A sub-15 3×3 single — 69,493 people have one; it is 0.73 away.
  • A sub-6 2×2 single — 95,042 people have one; it is 0.64 away.

Targets move as he improves.