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People → China → Jiajun Li (李嘉俊)

People · China

Jiajun Li (李嘉俊)

3×3 · top 4.0% of 284,439 all-time · competing since August 2009 · 2009LIJI03

Jiajun Li (李嘉俊) has been competing for 17 years. His best event is the 3×3: a personal-best single of 8.61, set at SJTU Open 2018, puts him in the top 4.0% of the 284,439 people who have ever been ranked in the event, and 1,505th in China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 51 competitions since August 2009, he has put 1,729 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 88% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 20.56 in August 2009 to 8.61, a 58% improvement. Jiajun has entered 51 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 4.0% of 284,439 all-time
8.61
signature single · SJTU Open 2018
1,729
official solves on the record
11%
solve-to-solve spread · steadier than 88% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
3×38.6110.26
top 4.0%1,505 / 28,153
3×3 one-handed12.8418.12
top 4.2%367 / 5,922
2×21.913.69
top 4.2%555 / 15,796
4×438.6245.26
top 10.5%1,109 / 5,926
Pyraminx5.157.74
top 14.1%1,674 / 10,224
3×3 Fewest Moves30 moves41.33
top 14.8%148 / 1,058
5×51:33.271:35.77
top 30.1%1,356 / 2,816
Square-120.9729.14
top 30.1%513 / 1,362
Skewb7.7412.60
top 39.3%2,346 / 5,004
7×74:46.814:51.42
top 46.7%844 / 1,261
Megaminx2:02.232:26.83
top 47.0%1,253 / 1,678
6×63:37.453:57.00
top 57.7%1,052 / 1,349
Clock20.4725.16
top 66.1%1,451 / 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

Shanghai Weisuo Open 2009: 20.56Hangzhou Open 2010: 13.41Shanghai Winter Cubing Festival 2010: 13.90Shanghai Open 2010: 14.88Nanjing Winter Open 2010: 13.03Changzhou Spring Festival Open 2011: 14.18Hangzhou Open 2011: 10.91Shanghai Meatball Fall 2011: 12.91Suzhou Open 2011: 12.19Shanghai Port Open 2011: 14.27Shanghai Snowball Winter 2011: 13.13Hefei Spring 2012: 12.91Nanjing Spring 2012: 13.00Shanghai Summer 2012: 12.52Asian Championship 2012: 13.58Shanghai Maritime Open 2013: 12.31Wuxi Open 2013: 11.09Wenzhou Open 2013: 11.06Shanghai Spring 2014: 11.10Beijing Summer Open 2014: 11.36Suzhou Open 2014: 10.54Hangzhou Winter Open 2014: 11.53Cube Elite Union Cafe 2014: 11.56Shanghai Fudan Spring 2015: 12.36Hefei Open 2015: 11.58Shanghai Summer Open 2015: 12.59Nanchang Winter 2015: 12.00Shanghai Spring 2016: 11.39Shanghai Songjiang Open 2016: 10.34Suzhou Open 2016: 9.62Jinhua Open 2016: 11.69Shanghai Winter is Coming 2016: 10.30Shanghai Spring 2017: 11.15Shanghai Love In ECNU 2017: 11.98ZUST Open 2017: 10.31Changshu Open 2017: 10.27Yangzhou Open 2017: 10.43Suzhou Open 2017: 10.37Kunshan Open 2018: 9.21SJTU Open 2018: 8.61Suzhou Open 2018: 9.77SJTU Winter Open 2018: 9.93Shanghai Open 2019: 12.05Kunshan Afternoon 2021: 10.68Shanghai Summer 2026: 10.648.6120.569 Aug 20091 Aug 2026

Best single per competition, 3×3. 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 0.61 away.
  • A sub-12 3×3 one-handed single — 2,187 people have one; it is 0.84 away.

Targets move as he improves.