People · China
Yunfa Cao (曹云发)
Square-1 · top 17.5% of 25,662 all-time · competing since November 2009 · 2009CAOY01
Yunfa Cao (曹云发) has been competing for 17 years. His best event is the Square-1: a personal-best single of 15.44, set at Hefei Spring 2012, puts him in the top 17.5% of the 25,662 people who have ever been ranked in the event, and 278th in China. Across 7 competitions since November 2009, he has put 220 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 92% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 24.02 in November 2009 to 13.78, a 43% improvement. Yunfa has entered seven competitions, more competitions than 88% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Square-1 | 15.44 | 31.92 | top 17.5% | 278 / 1,373 | |
| 3×3 | 13.78 | 15.68 | top 20.3% | 7,994 / 28,499 | |
| 3×3 one-handed | 24.38 | 29.54 | top 32.6% | 3,188 / 5,994 | |
| 2×2 | 4.83 | 7.59 | top 37.2% | 6,490 / 15,939 | |
| 4×4 | 1:11.91 | 1:17.97 | top 48.8% | 4,506 / 5,999 | |
| Pyraminx | 10.31 | 16.49 | top 55.5% | 5,811 / 10,269 | |
| 5×5 | 2:18.27 | 2:41.58 | top 60.2% | 2,405 / 2,857 | |
| 3×3 Fewest Moves | 48 moves | — | early days — 2 solves | 878 / 1,071 | |
| Megaminx | 3:15.25 | 4:02.29 | top 79.4% | 1,611 / 1,693 | |
| Clock | 39.02 | 1:00.79 | top 92.7% | 1,821 / 1,887 | |
| 6×6 | 7:18.80 | — | early days — 2 solves | 1,362 / 1,363 |
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
- 5 Aug 2012Three personal bests in one day at Hefei Summer 2012.
- 10 Mar 2012Nine personal bests in one day at Hefei Spring 2012.
- 20 Nov 2011Five personal bests in one day at Zhengzhou Autumn 2011.
- 16 Jul 2011First sub-20 3×3: 16.46 at Hefei After Term Open 2011.
- 16 Jul 2011First sub-15 3×3: 14.31 at Hefei After Term Open 2011.
- 16 Jul 2011Four personal bests in one day at Hefei After Term Open 2011.
Competitions
- Hefei Open 2015 · 17 Jul 2015
- Hefei Summer 2012 · 5 Aug 2012 — 3 personal bests set
- Nanjing Spring 2012 · 25 Mar 2012 — 2 personal bests set
- Hefei Spring 2012 · 10 Mar 2012 — 9 personal bests set
- Zhengzhou Autumn 2011 · 20 Nov 2011 — 5 personal bests set
- Hefei After Term Open 2011 · 16 Jul 2011 — 4 personal bests set
- Harbin Open 2009 · 8 Nov 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.
- Chunyu Zhang (张春雨) — met in 39 rounds, finished ahead 18 times
- Yusheng Liu (刘雨生) — met in 29 rounds, finished ahead 5 times
- Qirun Zhong (钟奇润) — met in 26 rounds, finished ahead 5 times
Next targets
- A sub-15 Square-1 single — 4,234 people have one; it is 0.44 away.
- A sub-12 3×3 single — 40,277 people have one; it is 1.78 away.
Targets move as he improves.