People · China
Jiajun Liu (刘嘉俊)
4×4 · top 0.54% of 85,040 all-time · competing since March 2019 · 2019LIUJ03
Jiajun Liu (刘嘉俊) has been competing for 8 years. His best event is the 4×4: a personal-best single of 24.16, set at Xuzhou Zenith 2026, puts him in the top 0.54% of the 85,040 people who have ever been ranked in the event, and 53rd in China. Until August 2014, no official 4×4 solve in the world had been that fast. Across 9 competitions since March 2019, he has put 289 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 15% around a typical one; 85% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 8.27 in March 2019 to 6.13, a 26% improvement. Jiajun 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 | |
|---|---|---|---|---|---|
| 4×4 | 24.16 | 28.50 | top 0.54% | 53 / 5,999 | |
| 3×3 | 6.13 | 7.35 | top 0.57% | 214 / 28,499 | |
| 5×5 | 45.53 | 52.73 | top 0.76% | 28 / 2,857 | |
| 3×3 one-handed | 10.05 | 13.31 | top 1.1% | 98 / 5,994 | |
| 2×2 | 1.98 | 2.52 | top 4.7% | 643 / 15,939 | |
| 7×7 | 2:38.39 | 2:52.54 | top 5.3% | 107 / 1,274 | |
| 6×6 | 1:47.73 | 1:51.58 | top 6.4% | 150 / 1,363 | |
| Megaminx | 53.14 | 1:03.52 | top 6.6% | 159 / 1,693 | |
| Pyraminx | 3.92 | 9.69 | top 7.3% | 878 / 10,269 |
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
- 11 Apr 2026Four personal bests in one day at Xuzhou Zenith 2026.
- 6 Feb 2026Three personal bests in one day at Guangdong Open - Revival & Rival 2026.
- 16 Nov 2025Five personal bests in one day at Xuzhou Open 2025.
- 23 Mar 2019First competition: GDSY Open 2019. A 8.27 3×3 single to start from.
Competitions
- Guangzhou GraDUAL 3x3 I 2026 · 5 Aug 2026
- Hefei Cubing League 3x3 III 2026 · 17 Jun 2026
- Hefei Cubing League 3x3 I 2026 · 20 May 2026
- Xuzhou Zenith 2026 · 11 Apr 2026 — 4 personal bests set
- Guangdong Open - Revival & Rival 2026 · 6 Feb 2026 — 3 personal bests set
- Zhengzhou Zeal 2025 · 28 Dec 2025 — 1 personal best set
- Zhengzhou Zest 2025 · 27 Dec 2025 — 2 personal bests set
- Xuzhou Open 2025 · 16 Nov 2025 — 5 personal bests set
- GDSY Open 2019 · 23 Mar 2019 — 2 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.
- Zhibo Xuan (禤志博) — met in 41 rounds, finished ahead 31 times
- Haoran Jing (荆浩然) — met in 36 rounds, finished ahead 29 times
- Ruimin Yan (颜瑞民) — met in 32 rounds, finished ahead 32 times
Next targets
- A sub-20 4×4 single — 46 people have one; it is 4.16 away.
- A sub-6 3×3 single — 1,419 people have one; it is 0.13 away.
Targets move as he improves.