Saturday 24 October 2026 Rebuilt nightly from the WCA's official results · export of 24 October 2026 · About
The Middle Three
People → Hong Kong, China → Bosco Zhibo Zhang (張智博)

People · Hong Kong, China

Bosco Zhibo Zhang (張智博)

3×3 · top 5.3% of 288,433 all-time · competing since February 2026 · 2026ZHAN08

Bosco Zhibo Zhang (張智博) has been competing for 9 months. His best event is the 3×3: a personal-best single of 9.17, set at Guangzhou GraDUAL 3x3 II 2026, puts him in the top 5.3% of the 288,433 people who have ever been ranked in the event, and 158th in Hong Kong, China. Until May 2008, no official 3×3 solve in the world had been that fast. Across 13 competitions since February 2026, he has put 188 official solves on the record across five events. Solve to solve, his 3×3 times vary about 13% around a typical one; 59% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 11.87 in February 2026 to 9.17, a 23% improvement. Bosco has entered 13 competitions, more competitions than 94% of everyone who has ever competed.

3×3
best event — top 5.3% of 288,433 all-time
9.17
signature single · Guangzhou GraDUAL 3x3 II 2026
188
official solves on the record
13%
solve-to-solve spread · wider than 59% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingHong Kong, China
3×39.1712.72
top 5.3%158 / 1,424
Pyraminx6.398.11
top 23.0%153 / 448
2×23.745.12
top 23.3%284 / 880
Clock10.5811.96
top 27.8%71 / 159
Skewb8.4011.84
top 44.4%173 / 293

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

Guangdong Open - Revival & Rival 2026: 11.87Zhuhai Pi Day 2026: 14.16Xuzhou Zenith 2026: 10.93Foshan Open 2026: 10.68Nanchang Summer 2026: 11.62Zhanjiang Open 2026: 13.30Guangzhou GraDUAL 3x3 II 2026: 9.17Beihai Open 2026: 12.39Nanning Open 2026: 11.02Guangzhou GraDUAL 3x3 III 2026: 12.35Hong Kong Cube Day 2026: 12.12Hong Kong Autumn Cube Day 2026: 13.049.1714.166 Feb 202617 Oct 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-8 3×3 single — 8,101 people have one; it is 1.17 away.
  • A sub-6 Pyraminx single — 26,233 people have one; it is 0.39 away.

Targets move as he improves.