People · China
Huaizhen Liu (刘淮真)
3×3 · top 0.77% of 284,439 all-time · competing since March 2021 · 2021LIUH02
Huaizhen Liu (刘淮真) has been competing for 5 years. His best event is the 3×3: a personal-best single of 6.40, set at Hangzhou Winter 2025, puts him in the top 0.77% of the 284,439 people who have ever been ranked in the event, and 286th in China. Until May 2011, no official 3×3 solve in the world had been that fast. Across 9 competitions since March 2021, he has put 146 official solves on the record across three events. Solve to solve, his 3×3 times vary about 10% around a typical one, steadier than 97% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 48.21 in March 2021 to 6.40, an 87% improvement. Huaizhen has entered nine competitions, more competitions than 91% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 3×3 | 6.40 | 7.99 | top 0.77% | 286 / 28,153 | |
| 2×2 | 2.18 | 4.05 | top 6.0% | 854 / 15,796 | |
| Pyraminx | 5.92 | 7.77 | top 19.4% | 2,219 / 10,224 |
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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 23 Dec 2023Four personal bests in one day at Changsha Open 2023.
- 12 Aug 2023First sub-30 3×3: 9.77 at Rubik's WCA World Championship 2023.
- 12 Aug 2023First sub-20 3×3: 9.77 at Rubik's WCA World Championship 2023.
- 12 Aug 2023First sub-15 3×3: 9.77 at Rubik's WCA World Championship 2023.
- 12 Aug 2023First sub-10 3×3: 9.77 at Rubik's WCA World Championship 2023.
- 12 Aug 2023Three personal bests in one day at Rubik's WCA World Championship 2023.
Competitions
- Hangzhou Open 2026 · 23 May 2026
- Hangzhou Winter 2025 · 29 Nov 2025 — 1 personal best set
- Lishui Open 2025 · 25 May 2025
- Xuzhou Autumn 2024 · 21 Sep 2024 — 1 personal best set
- Huzhou Open 2024 · 30 Mar 2024 — 1 personal best set
- Changsha Open 2023 · 23 Dec 2023 — 4 personal bests set
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 3 personal bests set
- Hangzhou Open AM 2021 · 18 Apr 2021 — 3 personal bests set
- Shaoxing Morning 2021 · 27 Mar 2021
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.
- Chufan Cao (曹楚凡) — met in 21 rounds, finished ahead 6 times
- Yusheng Du (杜宇生) — met in 19 rounds, finished ahead once
- Yiheng Wang (王艺衡) — met in 18 rounds, never finished ahead
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 0.40 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.18 away.
Targets move as he improves.