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The Middle Three
People → China → Shaobo Cai (蔡邵博)

People · China

Shaobo Cai (蔡邵博)

3×3 · top 1.1% of 284,439 all-time · competing since March 2024 · 2024CAIS01

Shaobo Cai (蔡邵博) has been competing for 2 years. His best event is the 3×3: a personal-best single of 6.77, set at Xuzhou Zenith 2026, puts him in the top 1.1% of the 284,439 people who have ever been ranked in the event, and 398th in China. Until November 2010, no official 3×3 solve in the world had been that fast. Across 5 competitions since March 2024, he has put 119 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 15% around a typical one; 79% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 7.56 in March 2024 to 6.77, a 10% improvement. Shaobo has entered five competitions, more competitions than 83% of everyone who has ever competed.

3×3
best event — top 1.1% of 284,439 all-time
6.77
signature single · Xuzhou Zenith 2026
119
official solves on the record
15%
solve-to-solve spread · wider than 79% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
3×36.778.29
top 1.1%398 / 28,153
2×21.663.62
top 2.9%350 / 15,796
4×437.7849.89
top 9.6%1,011 / 5,926
3×3 one-handed16.9118.85
top 12.3%1,206 / 5,922
Pyraminx7.008.32
top 27.9%3,111 / 10,224
5×52:04.54
early days — 1 solve2,150 / 2,816
Clock54.81
early days — 1 solve1,832 / 1,843

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

Huzhou Open 2024: 7.56Deqing Small Cubes Summer 2024: 9.08Yancheng Spring Open 2026: 7.32Xuzhou Zenith 2026: 6.77Hangzhou Open 2026: 7.226.779.0830 Mar 202423 May 2026

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-6 3×3 single — 1,376 people have one; it is 0.77 away.
  • A sub-1 2×2 single — 1,032 people have one; it is 0.66 away.

Targets move as he improves.