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The Middle Three
People → China → Chengming Su (苏成明)

People · China

Chengming Su (苏成明)

3×3 one-handed · top 1.3% of 73,695 all-time · competing since July 2013 · 2013SUCH02

Chengming Su (苏成明) has been competing for 13 years. His best event is the 3×3 one-handed: a personal-best single of 10.35, set at Zeer Rangsit Cubing 2024, puts him in the top 1.3% of the 73,695 people who have ever been ranked in the event, and 115th in China. Until December 2011, no official 3×3 one-handed solve in the world had been that fast. Across 69 competitions since July 2013, he has put 1,744 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 52% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 20.56 in July 2013 to 7.13, a 65% improvement. Chengming has entered 69 competitions, more competitions than 99% of everyone who has ever competed.

3×3 one-handed
best event — top 1.3% of 73,695 all-time
10.35
signature single · Zeer Rangsit Cubing 2024
1,744
official solves on the record
13%
solve-to-solve spread · steadier than 52% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
3×3 one-handed10.3514.14
top 1.3%115 / 5,922
3×37.139.52
top 1.5%527 / 28,153
2×21.413.08
top 1.8%206 / 15,796
Pyraminx4.279.00
top 9.0%1,078 / 10,224
Skewb4.185.35
top 12.2%728 / 5,004
4×443.0649.32
top 15.8%1,714 / 5,926
Square-116.4632.03
top 19.7%317 / 1,362
Megaminx1:34.021:44.84
top 30.7%920 / 1,678
5×51:41.251:58.13
top 36.3%1,644 / 2,816
3×3 Fewest Moves38 moves40.33
top 40.9%459 / 1,058
3×3 blindfolded3:29.43—
early days — 3 solves842 / 1,183
7×75:36.355:51.39
top 61.6%1,019 / 1,261
6×64:08.704:22.83
early days — 3 solves1,169 / 1,349
Clock21.9528.56
top 70.0%1,512 / 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

Hefei Open 2013: 20.56Hefei Spring 2014: 12.49Hefei Summer Open 2014: 16.87China Championship 2015: 14.54Nanjing Spring 2016: 12.45Shanghai Songjiang Open 2016: 13.05Hefei Open 2016: 12.77Xi'an Open 2016: 13.18Asian Championship 2016: 12.24ZUA Open 2017: 11.91Xi'an Cherry Blossom 2017: 10.55Nanchang Spring 2017: 13.02Nanjing Spring 2017: 11.94Wuhan NxN Open 2017: 11.23Beijing Open 2017: 9.05China Championship 2017: 12.17Quanzhou Side Event 2017: 13.06Shantou Open 2017: 12.76Suzhou Open 2017: 10.20Hefei Open 2017: 9.93Nanchang Open 2017: 8.05TKK Open 2017: 11.80WHU Rubik's Cube Days 2017: 10.96Jinhua New Year's Day 2018: 11.14Inner Mongolia Winter 2018: 10.12Hangzhou Spring 2018: 10.93Luoyang Spring 2018: 9.68Guangdong Open 2018: 8.96You May Open 2018: 10.14HUST Open 2018: 10.40Nanchang Medium & Small Cubes 2018: 9.52Beijing Summer 2018: 9.77WCA Asian Championship 2018: 9.65Thailand Championship 2018: 9.80China Championship 2018: 9.11WIT Open 2018: 9.37Maoming Open 2018: 10.51Wuhu Open 2018: 10.19Yangjiang Open 2019: 9.22Singapore Cube Championship 2019: 9.86Shenzhen 3x3 Days 2019: 9.43Medan Mini All Events 2019: 9.43Weihai Open 2019: 10.40Wuhan Open 2019: 9.32Kunming Open 2019: 9.27Maoming Open 2019: 8.30Jieyang Open 2019: 8.85Shanghai Open 2019: 11.05Cebu Speedcubing Year End 2019: 10.23Cubing Korea 2019: 10.82Hangzhou Open PM 2021: 11.34Zeer Rangsit Cubing 2024: 8.45Kunshan Open 2024: 8.86Yancheng Open 2024: 8.79Xuzhou Newcomers 2025: 7.13Yancheng Open 2025: 8.957.1320.5627 Jul 20137 Jun 2025

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-10 3×3 one-handed single — 779 people have one; it is 0.35 away.
  • A sub-6 3×3 single — 1,376 people have one; it is 1.13 away.

Targets move as he improves.