People · China
Zexi Zeng (曾泽西)
Pyraminx · top 4.1% of 129,321 all-time · competing since March 2011 · 2011ZENG01
Zexi Zeng (曾泽西) has been competing for 16 years. His best event is the Pyraminx: a personal-best single of 3.13, set at Fuzhou Autumn 2017, puts him in the top 4.1% of the 129,321 people who have ever been ranked in the event, and 496th in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 14 competitions since March 2011, he has put 381 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 80% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 17.09 in March 2011 to 11.22, a 34% improvement. Zexi 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 | China | |
|---|---|---|---|---|---|
| Pyraminx | 3.13 | 5.24 | top 4.1% | 496 / 10,224 | |
| 3×3 | 11.22 | 13.63 | top 11.2% | 4,383 / 28,153 | |
| 3×3 one-handed | 16.87 | 23.83 | top 12.3% | 1,198 / 5,922 | |
| 4×4 | 46.83 | 52.82 | top 20.6% | 2,212 / 5,926 | |
| Skewb | 5.33 | 9.81 | top 20.7% | 1,287 / 5,004 | |
| 2×2 | 3.98 | 4.85 | top 26.2% | 4,422 / 15,796 | |
| Megaminx | 1:44.54 | 2:00.92 | top 37.3% | 1,093 / 1,678 | |
| 5×5 | 1:43.79 | 1:56.79 | top 38.2% | 1,721 / 2,816 | |
| 3×3 Fewest Moves | 38 moves | 44.67 | top 40.9% | 459 / 1,058 | |
| 3×3 blindfolded | 2:29.57 | 3:18.03 | top 43.1% | 625 / 1,183 | |
| 6×6 | 3:28.80 | 4:02.25 | early days — 3 solves | 1,002 / 1,349 | |
| 7×7 | 5:16.30 | 5:55.44 | early days — 3 solves | 954 / 1,261 | |
| Clock | 21.01 | 23.66 | top 67.6% | 1,477 / 1,843 | |
| Square-1 | 42.09 | 56.12 | top 67.9% | 1,128 / 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
- 19 Nov 2017Three personal bests in one day at TKK Open 2017.
- 2 Jul 2017Five personal bests in one day at Quanzhou Open 2017.
- 9 Apr 2017Four personal bests in one day at Zhangzhou Spring 2017.
- 5 Oct 2012First sub-15 3×3: 14.77 at Asian Championship 2012.
- 5 Oct 2012Three personal bests in one day at Asian Championship 2012.
- 20 Mar 2011First competition: One-to-eight Cubes Competition 2011. A 17.09 3×3 single to start from.
Competitions
- Quangang Morning 2025 · 31 Aug 2025
- FMC Asia 2025 · 27 Jul 2025
- Xiamen Winter 2019 · 1 Dec 2019
- Quanzhou Open 2019 · 25 Aug 2019
- TKK Open 2017 · 19 Nov 2017 — 3 personal bests set
- Fuzhou Autumn 2017 · 5 Nov 2017 — 2 personal bests set
- Xiamen Autumn 2017 · 15 Oct 2017 — 1 personal best set
- Quanzhou Side Event 2017 · 19 Aug 2017
- Quanzhou Open 2017 · 2 Jul 2017 — 5 personal bests set
- Zhangzhou Spring 2017 · 9 Apr 2017 — 4 personal bests set
- Quanzhou Open 2016 · 18 Dec 2016
- TKK Open 2016 · 16 Oct 2016 — 1 personal best set
- Asian Championship 2012 · 5 Oct 2012 — 3 personal bests set
- One-to-eight Cubes Competition 2011 · 20 Mar 2011
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.
- Baiqiang Dong (董百强) — met in 66 rounds, finished ahead 35 times
- Daoming Ye (叶道明) — met in 51 rounds, finished ahead 34 times
- Yujie Rao (饶喻杰) — met in 46 rounds, finished ahead 9 times
Next targets
- A sub-3 Pyraminx single — 4,700 people have one; it is 0.13 away.
- A sub-10 3×3 single — 21,172 people have one; it is 1.22 away.
Targets move as he improves.