People · China
Cheng Tan (谭丞)
2×2 · top 8.0% of 189,179 all-time · competing since April 2009 · 2009TANC02
Cheng Tan (谭丞) has been competing for 18 years. His best event is the 2×2: a personal-best single of 2.40, set at Nanjing Spring Open 2010, puts him in the top 8.0% of the 189,179 people who have ever been ranked in the event, and 1,173rd in China. Until February 2008, no official 2×2 solve in the world had been that fast. Across 6 competitions since April 2009, he has put 106 official solves on the record across six events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 8 counted rounds. His 3×3 best has come down from 24.97 in August 2009 to 13.09, a 48% improvement. Cheng has entered six competitions, more competitions than 86% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 2×2 | 2.40 | 5.08 | top 8.0% | 1,173 / 15,939 | |
| 3×3 | 13.09 | 17.04 | top 17.8% | 7,093 / 28,499 | |
| 4×4 | 1:03.28 | 1:10.10 | top 40.0% | 3,928 / 5,999 | |
| 3×3 one-handed | 57.60 | 1:22.49 | top 82.5% | 5,816 / 5,994 | |
| Pyraminx | 15.21 | 40.21 | top 82.6% | 8,195 / 10,269 | |
| 5×5 | 3:30.31 | — | early days — 1 solve | 2,781 / 2,857 |
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
- 14 May 2011First sub-15 3×3: 14.78 at Nanjing Spring 2011.
- 14 May 2011Three personal bests in one day at Nanjing Spring 2011.
- 25 Apr 2010First sub-20 3×3: 19.55 at Nanjing Spring Open 2010.
- 25 Apr 2010Four personal bests in one day at Nanjing Spring Open 2010.
- 6 Apr 2009First competition: Qingming Festival Open 2009.
Competitions
- Japan Championship 2018 · 22 Dec 2018
- JRCA Kansai Spring 2017 · 28 May 2017 — 2 personal bests set
- Nanjing Spring 2011 · 14 May 2011 — 3 personal bests set
- Nanjing Spring Open 2010 · 25 Apr 2010 — 4 personal bests set
- Shanghai Weisuo Open 2009 · 9 Aug 2009 — 1 personal best set
- Qingming Festival Open 2009 · 6 Apr 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.
- Jiarui Cao (曹家睿) — met in 15 rounds, finished ahead 5 times
- Congbiao Jiang (蒋丛骉) — met in 15 rounds, finished ahead 3 times
- Beilei Hu (胡蓓蕾) — met in 13 rounds, finished ahead 6 times
Next targets
- A sub-2 2×2 single — 9,039 people have one; it is 0.40 away.
- A sub-12 3×3 single — 40,277 people have one; it is 1.09 away.
Targets move as he improves.