People · Hong Kong, China
Joseph Liu (劉睿博)
2×2 · top 0.95% of 186,767 all-time · competing since January 2023 · 2023LIUJ01
Joseph Liu (劉睿博) has been competing for 4 years. His best event is the 2×2: a personal-best single of 1.17, set at IUKL SOR 2023, puts him in the top 0.95% of the 186,767 people who have ever been ranked in the event, and 13th in Hong Kong, China. Until November 2008, no official 2×2 solve in the world had been that fast. Across 13 competitions since January 2023, he has put 441 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 84% of the 35,811 competitors with ten or more counted rounds. His 2×2 best has come down from 3.06 in January 2023 to 1.17, a 62% improvement. Joseph has entered 13 competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Hong Kong, China | |
|---|---|---|---|---|---|
| 2×2 | 1.17 | 2.11 | top 0.95% | 13 / 855 | |
| 3×3 | 6.79 | 10.31 | top 1.1% | 22 / 1,347 | |
| Pyraminx | 3.76 | 5.97 | top 6.5% | 46 / 431 | |
| Skewb | 4.32 | 7.06 | top 13.1% | 54 / 285 | |
| 4×4 | 54.15 | 1:04.68 | top 29.7% | 197 / 423 | |
| 3×3 one-handed | 26.66 | 33.32 | top 38.5% | 211 / 361 | |
| Square-1 | 27.50 | 33.96 | top 44.6% | 76 / 126 |
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
Best single per competition, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 30 Sep 2023Five personal bests in one day at IUKL SOR 2023.
- 8 Apr 2023First sub-10 3×3: 8.79 at Essex Spring 2023.
- 8 Apr 2023Five personal bests in one day at Essex Spring 2023.
- 20 Jan 2023First competition: Melbourne Summer 2023. A 11.11 3×3 single to start from.
- 20 Jan 2023Three personal bests in one day at Melbourne Summer 2023.
Competitions
- Hong Kong Cube Day 2025 · 7 Jun 2025
- Cubing with the Cougars WV 2025 · 1 Feb 2025 — 1 personal best set
- Hong Kong Championship 2024 · 16 Nov 2024 — 1 personal best set
- Pennsylvania Championship 2024 · 21 Jun 2024
- Welcome Back Hong Kong 2024 · 31 Mar 2024
- Going Back to the Gong 2024 · 10 Feb 2024 — 2 personal bests set
- Hong Kong Championship 2023 · 21 Oct 2023
- IUKL SOR 2023 · 30 Sep 2023 — 5 personal bests set
- CubingUSA Nationals 2023 · 27 Jul 2023
- Hong Kong Small Cube Day 2023 · 26 May 2023
- Essex Spring 2023 · 8 Apr 2023 — 5 personal bests set
- Adelaide Summer 2023 · 28 Jan 2023 — 1 personal best set
- Melbourne Summer 2023 · 20 Jan 2023 — 3 personal bests set
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.
- Andy Mok Man Cheuk (莫文卓) — met in 24 rounds, finished ahead 7 times
- Yang Pin Xiu (楊品修) — met in 24 rounds, finished ahead 6 times
- Timothy Kong Wing Sum (江永琛) — met in 23 rounds, finished ahead 6 times
Next targets
- A sub-1 2×2 single — 1,032 people have one; it is 0.17 away.
- A sub-6 3×3 single — 1,376 people have one; it is 0.79 away.
Targets move as he improves.