People · Malaysia
Kong Chai Chen
2×2 · top 69.7% of 189,179 all-time · competing since November 2009 · 2009CHEN47
Kong Chai Chen has been competing for 17 years. His best event is the 2×2: a personal-best single of 8.31, set at Johor Rubik's Cube Open 2012, puts him in the top 69.7% of the 189,179 people who have ever been ranked in the event, and 2,122nd in Malaysia. Across 14 competitions since November 2009, he has put 147 official solves on the record across four events. Solve to solve, his 3×3 times vary about 19% around a typical one; 98% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 2×2 best has come down from 23.40 in March 2010 to 8.31, a 64% improvement. Kong has entered 14 competitions, more competitions than 95% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Malaysia | |
|---|---|---|---|---|---|
| 2×2 | 8.31 | 15.62 | top 69.7% | 2,122 / 2,582 | |
| Clock | 25.40 | 31.22 | top 77.4% | 326 / 415 | |
| 3×3 | 42.50 | 53.48 | top 79.7% | 3,456 / 3,825 | |
| Pyraminx | 19.90 | 29.02 | top 92.8% | 1,668 / 1,746 |
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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 28 Nov 2009First competition: Malaysian Open 2009. A 49.15 3×3 single to start from.
Competitions
- Johor Rubik's Cube Open 2012 · 2 Sep 2012 — 2 personal bests set
- Taylor's Cube Open 2012 · 28 Jul 2012 — 1 personal best set
- Malaysia Cube Open 2012 · 2 Jun 2012
- Cyber Open 2012 · 7 Apr 2012 — 2 personal bests set
- World Rubik's Cube Championship 2011 · 14 Oct 2011 — 2 personal bests set
- Iran Open 2011 · 1 Sep 2011
- Cube Fever 2011 · 27 Aug 2011
- Petrosains Playsmart Math Carnival 2011 · 19 Mar 2011
- Malaysian Cube Open 2010 · 18 Dec 2010 — 1 personal best set
- Asian Championship 2010 · 9 Oct 2010 — 2 personal bests set
- Perak Rubik's Cube Open 2010 · 31 Jul 2010 — 1 personal best set
- Johor Rubik's Cube Open 2010 · 5 Jun 2010 — 1 personal best set
- Rubik's Cube Singapore Open 2010 · 20 Mar 2010
- Malaysian Open 2009 · 28 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.
- Wang Junwen (王俊文) — met in 39 rounds, finished ahead 3 times
- Jonathan Tan Wei Xiat — met in 24 rounds, finished ahead 7 times
- Lee Jia Yong (李伽榮) — met in 24 rounds, never finished ahead
Next targets
- A sub-8 2×2 single — 128,257 people have one; it is 0.31 away.
- A sub-25 Clock single — 25,154 people have one; it is 0.40 away.
Targets move as he improves.