People · China
Kaiyuan Chen (陈恺垣)
3×3 · top 22.4% of 284,439 all-time · competing since December 2009 · 2009CHEN50
Kaiyuan Chen (陈恺垣) has been competing for 17 years. His best event is the 3×3: a personal-best single of 14.42, set at Nanjing Autumn 2012, puts him in the top 22.4% of the 284,439 people who have ever been ranked in the event, and 8,594th in China. Across 9 competitions since December 2009, he has put 121 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 14% around a typical one, an early reading from 9 counted rounds. His 3×3 best has come down from 17.55 in December 2009 to 14.42, an 18% improvement. Kaiyuan 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 | 14.42 | 17.32 | top 22.4% | 8,594 / 28,153 | |
| 3×3 one-handed | 30.09 | 42.73 | top 46.8% | 4,123 / 5,922 | |
| 3×3 blindfolded | 2:53.97 | — | top 50.7% | 709 / 1,183 | |
| 4×4 | 1:15.84 | 1:32.72 | top 52.4% | 4,652 / 5,926 | |
| 2×2 | 6.40 | 7.70 | top 55.0% | 9,318 / 15,796 | |
| 5×5 | 2:17.47 | 2:57.59 | top 59.6% | 2,349 / 2,816 | |
| Clock | 22.40 | 32.38 | top 71.1% | 1,528 / 1,843 | |
| Pyraminx | 16.66 | 23.98 | top 86.9% | 8,568 / 10,224 | |
| 3×3 Fewest Moves | 54 moves | — | early days — 1 solve | 998 / 1,058 | |
| 7×7 | 8:26.68 | — | early days — 2 solves | 1,235 / 1,261 | |
| Square-1 | 1:41.12 | — | early days — 2 solves | 1,357 / 1,362 |
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 Apr 2010First sub-15 3×3: 14.77 at Nanjing Spring Open 2010.
- 25 Apr 2010Seven personal bests in one day at Nanjing Spring Open 2010.
- 7 Feb 2010Four personal bests in one day at Shanghai Winter Cubing Festival 2010.
- 6 Dec 2009First competition: Nanjing Open 2009. A 17.55 3×3 single to start from.
Competitions
- NUAA Open 2013 · 12 May 2013
- Nanjing Normal University 2013 · 6 Apr 2013
- Nanjing Autumn 2012 · 27 Oct 2012 — 1 personal best set
- Nanjing Autumn 2011 · 30 Oct 2011
- Nanjing Spring 2011 · 14 May 2011
- Nanjing Winter Open 2010 · 5 Dec 2010
- Nanjing Spring Open 2010 · 25 Apr 2010 — 7 personal bests set
- Shanghai Winter Cubing Festival 2010 · 7 Feb 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 26 rounds, finished ahead 5 times
- Jiarui Cao (曹家睿) — met in 22 rounds, finished ahead 6 times
- Haowei Zhang (张昊威) — met in 21 rounds, finished ahead twice
Next targets
- A sub-12 3×3 single — 39,535 people have one; it is 2.42 away.
- A sub-30 3×3 one-handed single — 34,382 people have one; it is 0.09 away.
Targets move as he improves.