People · Singapore
Koh Zhen Chen Winston
3×3 · top 11.9% of 284,439 all-time · competing since February 2009 · 2009ZHEN03
Koh Zhen Chen Winston has been competing for 18 years. His best event is the 3×3: a personal-best single of 11.44, set at Malaysian Cube Open 2010, puts him in the top 11.9% of the 284,439 people who have ever been ranked in the event, and 301st in Singapore. Across 7 competitions since February 2009, he has put 133 official solves on the record across five events. Solve to solve, his 3×3 times vary about 9% around a typical one, steadier than 99% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 16.50 in February 2009 to 11.44, a 31% improvement. Koh 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 | Singapore | |
|---|---|---|---|---|---|
| 3×3 | 11.44 | 13.09 | top 11.9% | 301 / 1,546 | |
| 5×5 | 1:32.56 | 1:46.21 | top 29.4% | 114 / 251 | |
| 4×4 | 54.31 | 1:09.15 | top 29.9% | 210 / 462 | |
| Megaminx | 2:21.47 | 2:28.08 | top 57.2% | 131 / 195 | |
| 6×6 | 4:05.69 | 4:35.85 | early days — 3 solves | 99 / 125 |
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
- 20 Mar 2010First sub-15 3×3: 14.06 at Rubik's Cube Singapore Open 2010.
- 20 Mar 2010Four personal bests in one day at Rubik's Cube Singapore Open 2010.
- 28 Feb 2009First competition: Singapore Open 2009. A 16.50 3×3 single to start from.
Competitions
- Johor Lunar New Year 2016 · 14 Feb 2016
- Singapore Rubik's Cube Competition 2013 · 23 Feb 2013 — 1 personal best set
- Singapore Open 2012 · 11 Feb 2012 — 2 personal bests set
- NUS Rubik's Cube Competition 2011 · 20 Feb 2011 — 1 personal best set
- Malaysian Cube Open 2010 · 18 Dec 2010 — 2 personal bests set
- Rubik's Cube Singapore Open 2010 · 20 Mar 2010 — 4 personal bests set
- Singapore Open 2009 · 28 Feb 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.
- Teo Kai Xiang — met in 26 rounds, finished ahead once
- Howard Wong Jun Yen (黄俊仁) — met in 25 rounds, finished ahead 4 times
- Francis Wong Jia Yen — met in 22 rounds, finished ahead 6 times
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 1.44 away.
- A sub-1:30 5×5 single — 11,140 people have one; it is 2.56 away.
Targets move as he improves.