People · China
Zhengkang Shi (石正康)
2×2 · top 4.7% of 189,179 all-time · competing since May 2017 · 2017SHIZ01
Zhengkang Shi (石正康) has been competing for 9 years. His best event is the 2×2: a personal-best single of 1.98, set at China Championship 2018, puts him in the top 4.7% of the 189,179 people who have ever been ranked in the event, and 643rd in China. Until February 2008, no official 2×2 solve in the world had been that fast. Across 8 competitions since May 2017, he has put 111 official solves on the record across four events. Solve to solve, his 3×3 times vary about 14% around a typical one; 67% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 17.80 in May 2017 to 11.84, a 33% improvement. Zhengkang has entered eight competitions, more competitions than 90% 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 | 1.98 | 4.93 | top 4.7% | 643 / 15,939 | |
| 3×3 | 11.84 | 15.88 | top 13.4% | 5,379 / 28,499 | |
| Pyraminx | 6.84 | 10.66 | top 26.6% | 3,009 / 10,269 | |
| 3×3 one-handed | 37.40 | 49.74 | top 61.5% | 5,018 / 5,994 |
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
- 24 Jun 2017First sub-15 3×3: 14.43 at Beijing Open 2017.
- 28 May 2017First competition: Tangshan Open 2017. A 17.80 3×3 single to start from.
Competitions
- China Championship 2018 · 2 Oct 2018 — 1 personal best set
- Beijing Summer 2018 · 29 Jul 2018 — 1 personal best set
- Shijiazhuang Open 2018 · 10 Jun 2018 — 1 personal best set
- Shijiazhuang Open 2017 · 26 Nov 2017 — 1 personal best set
- Beijing Ten Years Open 2017 · 17 Sep 2017
- China Championship 2017 · 28 Jul 2017 — 1 personal best set
- Beijing Open 2017 · 24 Jun 2017 — 1 personal best set
- Tangshan Open 2017 · 28 May 2017
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.
- Hang Li (李航) — met in 22 rounds, finished ahead twice
- Zetong Zheng (郑泽同) — met in 20 rounds, never finished ahead
- Yiming Luo (罗一鸣) — met in 19 rounds, finished ahead 7 times
Next targets
- A sub-1 2×2 single — 1,050 people have one; it is 0.98 away.
- A sub-10 3×3 single — 21,606 people have one; it is 1.84 away.
Targets move as he improves.