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 → Jack Shi (時煬傑)

People · Hong Kong, China

Jack Shi (時煬傑)

3×3 one-handed · top 1.1% of 73,695 all-time · competing since October 2023 · 2023SHIJ02

Jack Shi (時煬傑) has been competing for 3 years. His best event is the 3×3 one-handed: a personal-best single of 10.02, set at Hong Kong Cube Day 2024, puts him in the top 1.1% of the 73,695 people who have ever been ranked in the event, and 9th in Hong Kong, China. Until December 2011, no official 3×3 one-handed solve in the world had been that fast. Across 3 competitions since October 2023, he has put 66 official solves on the record across four events. His 3×3 one-handed best has come down from 12.85 in October 2023 to 10.02, a 22% improvement. Jack has entered three competitions, more competitions than 69% of everyone who has ever competed.

3×3 one-handed
best event — top 1.1% of 73,695 all-time
10.02
signature single · Hong Kong Cube Day 2024
66
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingHong Kong, China
3×3 one-handed10.0212.06
top 1.1%9 / 361
3×39.5610.70
top 6.3%164 / 1,347
2×23.244.60
top 17.1%202 / 855
4×452.1756.04
top 27.4%182 / 423

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 2023: 12.85Welcome Back Hong Kong 2024: 12.15Hong Kong Cube Day 2024: 10.0210.0212.8521 Oct 202331 Aug 2024

Best single per competition, 3×3 one-handed. 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-10 3×3 one-handed single — 779 people have one; it is 0.02 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 1.56 away.

Targets move as he improves.