People · China
Jiarui Cao (曹家睿)
4×4 · top 10.2% of 85,040 all-time · competing since December 2009 · 2009CAOJ02
Jiarui Cao (曹家睿) has been competing for 17 years. His best event is the 4×4: a personal-best single of 38.32, set at Xi'an Cherry Blossom 2026, puts him in the top 10.2% of the 85,040 people who have ever been ranked in the event, and 1,104th in China. Across 12 competitions since December 2009, he has put 380 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 78% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 16.44 in December 2009 to 13.09, a 20% improvement. Jiarui has entered twelve 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 | China | |
|---|---|---|---|---|---|
| 4×4 | 38.32 | 44.00 | top 10.2% | 1,104 / 5,999 | |
| 3×3 | 13.09 | 14.64 | top 17.8% | 7,093 / 28,499 | |
| 3×3 one-handed | 19.59 | 27.37 | top 19.5% | 1,991 / 5,994 | |
| 5×5 | 1:24.62 | 1:26.79 | top 23.1% | 1,121 / 2,857 | |
| 2×2 | 4.22 | 5.36 | top 29.4% | 5,088 / 15,939 | |
| Megaminx | 1:50.83 | 2:04.92 | top 40.9% | 1,174 / 1,693 | |
| Square-1 | 31.33 | 1:05.48 | top 51.9% | 898 / 1,373 | |
| 6×6 | 3:39.65 | 3:44.57 | top 58.6% | 1,077 / 1,363 | |
| 3×3 Fewest Moves | 43 moves | — | early days — 1 solve | 705 / 1,071 | |
| 7×7 | 5:37.40 | 5:43.02 | top 61.9% | 1,034 / 1,274 | |
| Pyraminx | 12.12 | 14.87 | top 68.0% | 6,902 / 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
- 25 Mar 2012Four personal bests in one day at Nanjing Spring 2012.
- 5 Dec 2010Six personal bests in one day at Nanjing Winter Open 2010.
- 9 May 2010First sub-15 3×3: 14.47 at Alpha Cube BUAA Open 2010.
- 9 May 2010Six personal bests in one day at Alpha Cube BUAA Open 2010.
- 25 Apr 2010Four personal bests in one day at Nanjing Spring Open 2010.
- 6 Dec 2009First competition: Nanjing Open 2009. A 16.44 3×3 single to start from.
Competitions
- Xi'an Cherry Blossom 2026 · 4 Apr 2026 — 1 personal best set
- Suzhou Open 2014 · 12 Jul 2014 — 1 personal best set
- Nanjing Spring 2014 · 7 Apr 2014
- Nanjing Normal University 2013 · 6 Apr 2013 — 1 personal best set
- Nanjing Autumn 2012 · 27 Oct 2012 — 1 personal best set
- Nanjing Spring 2012 · 25 Mar 2012 — 4 personal bests set
- Nanjing Autumn 2011 · 30 Oct 2011 — 2 personal bests set
- Nanjing Spring 2011 · 14 May 2011 — 2 personal bests set
- Nanjing Winter Open 2010 · 5 Dec 2010 — 6 personal bests set
- Alpha Cube BUAA Open 2010 · 9 May 2010 — 6 personal bests set
- Nanjing Spring Open 2010 · 25 Apr 2010 — 4 personal bests set
- Nanjing Open 2009 · 6 Dec 2009
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.
- Congbiao Jiang (蒋丛骉) — met in 63 rounds, finished ahead 14 times
- Haowei Zhang (张昊威) — met in 53 rounds, finished ahead 9 times · head to head
- Zihao Wang (王子豪) — met in 49 rounds, finished ahead 19 times
Next targets
- A sub-30 4×4 single — 2,465 people have one; it is 8.32 away.
- A sub-12 3×3 single — 40,277 people have one; it is 1.09 away.
Targets move as he improves.