Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → China → Dezheng Jia (贾德正)

People · China

Dezheng Jia (贾德正)

3×3 · top 4.4% of 284,439 all-time · competing since August 2016 · 2016JIAD01

Dezheng Jia (贾德正) has been competing for 10 years. His best event is the 3×3: a personal-best single of 8.78, set at Deqing Small Cubes Summer 2024, puts him in the top 4.4% of the 284,439 people who have ever been ranked in the event, and 1,666th in China. Until May 2008, no official 3×3 solve in the world had been that fast. Across 28 competitions since August 2016, he has put 625 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 14% around a typical one; 65% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His Skewb best has come down from 4.34 in June 2017 to 3.22, a 26% improvement. Dezheng has entered 28 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 4.4% of 284,439 all-time
8.78
signature single · Deqing Small Cubes Summer 2024
625
official solves on the record
14%
solve-to-solve spread · wider than 65% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
3×38.7810.24
top 4.4%1,666 / 28,153
Pyraminx3.647.15
top 6.0%715 / 10,224
Skewb3.225.08
top 6.1%347 / 5,004
2×22.413.35
top 8.0%1,173 / 15,796
3×3 one-handed19.6122.96
top 19.5%1,955 / 5,922
4×453.041:01.52
top 28.4%2,964 / 5,926
Megaminx2:01.112:07.42
top 46.3%1,248 / 1,678
Square-129.9444.66
top 49.3%844 / 1,362
3×3 blindfolded3:05.93—
early days — 3 solves748 / 1,183
Clock18.3820.20
top 59.9%1,359 / 1,843

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

Luoyang Open 2017: 4.34China Championship 2017: 6.14Yangzhou Open 2017: 5.25Jiaozuo Open 2017: 4.13Shijiazhuang Open 2017: 3.30Zibo Open 2017: 4.27Qingdao Open 2018: 4.46Longyan Open 2019: 4.33Taizhou Open 2019: 4.29Xiamen Autumn 2019: 4.04Ezhou Open 2019: 4.42Xuzhou Winter 2019: 3.79Shaoxing Open 2019: 4.49Deqing Small Cubes Summer 2024: 4.04Hangzhou Open 2024: 4.17Linhai Newcomers 2025: 3.22Ningbo Autumn 2025: 5.23Xianju Special 2026: 4.03Hangzhou Open 2026: 3.583.226.1411 Jun 201723 May 2026

Best single per competition, Skewb. Faster is higher — the axis is the right way up.

The story so far

Competitions

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.

Next targets

  • A sub-8 3×3 single — 7,931 people have one; it is 0.78 away.
  • A sub-3 Pyraminx single — 4,700 people have one; it is 0.64 away.

Targets move as he improves.