Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → China → Xinzhou Ai

People · China

Xinzhou Ai

2×2 · top 32.4% of 186,767 all-time · competing since October 2019 · 2019AIXI01

Xinzhou Ai has been competing for 7 years. His best event is the 2×2: a personal-best single of 4.46, set at Solving Hunger Virginia 2019, puts him in the top 32.4% of the 186,767 people who have ever been ranked in the event, and 5,556th in China. Across 5 competitions since October 2019, he has put 38 official solves on the record across two events. Solve to solve, his 3×3 times vary about 19% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 28.48 in October 2019 to 22.05, a 23% improvement. Xinzhou has entered five competitions, more competitions than 83% of everyone who has ever competed.

2×2
best event — top 32.4% of 186,767 all-time
4.46
signature single · Solving Hunger Virginia 2019
38
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
2×24.469.96
top 32.4%5,556 / 15,796
3×322.0526.76
top 45.6%15,087 / 28,153

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

Solving Hunger Virginia 2019: 28.48TJHSST Fall 2019: 23.92Potomac Speedcubing 2020: 22.05Slow N Steady Winter 2020: 26.60Potomac Spring 2023: 23.2422.0528.4812 Oct 20191 Apr 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.

Next targets

  • A sub-4 2×2 single — 49,452 people have one; it is 0.46 away.
  • A sub-20 3×3 single — 113,584 people have one; it is 2.05 away.

Targets move as he improves.