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People → China → Jiahao Deng (邓家豪)

People · China

Jiahao Deng (邓家豪)

Pyraminx · top 1.3% of 129,321 all-time · competing since October 2014 · 2014DENG08

Jiahao Deng (邓家豪) has been competing for 12 years. His best event is the Pyraminx: a personal-best single of 2.06, set at Malaysia 15th Anniversary Championship 2024, puts him in the top 1.3% of the 129,321 people who have ever been ranked in the event, and 134th in China. Until July 2011, no official Pyraminx solve in the world had been that fast. Across 41 competitions since October 2014, he has put 1,787 official solves on the record across 13 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 23.25 in October 2014 to 8.21, a 65% improvement. Jiahao has entered 41 competitions, more competitions than 99% of everyone who has ever competed.

Pyraminx
best event — top 1.3% of 129,321 all-time
2.06
signature single · Malaysia 15th Anniversary Championship 2024
1,787
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
Pyraminx2.065.28
top 1.3%134 / 10,224
2×21.272.83
top 1.3%147 / 15,796
4×426.8432.25
top 1.3%124 / 5,926
5×551.9656.72
top 2.3%93 / 2,816
6×61:35.641:45.29
top 3.0%52 / 1,349
7×72:26.152:39.25
top 3.1%60 / 1,261
3×38.219.79
top 3.2%1,166 / 28,153
Clock5.036.90
top 4.5%82 / 1,843
Megaminx50.621:00.61
top 5.3%123 / 1,678
3×3 one-handed14.5518.79
top 7.2%693 / 5,922
Skewb3.447.04
top 7.3%414 / 5,004
Square-122.2428.16
top 33.0%559 / 1,362
3×3 Fewest Moves45 moves49.33
top 65.6%774 / 1,058

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

Guangdong Open 2014: 23.25Guangzhou New Year's Cube Day 2015: 21.94China Championship 2015: 15.07Dongguan Open 2016: 14.92Huizhou Open 2016: 12.32Hefei Open 2016: 14.33Cross-strait Cubing Exchange 2016: 12.99Shenzhen New Year 2017: 10.75Dongguan Open 2017: 11.40GDSY Open 2017: 9.47Guangzhou SCUT 2017: 11.08Zhuhai Open 2017: 11.17China Championship 2017: 10.05Quanzhou Side Event 2017: 8.68China's 10th Anniversary Championship 2017: 10.28Hefei Summer 2018: 9.94Meizhou Open 2018: 9.19Zhongshan NxN Speedcubing 2018: 9.54Shenzhen Nanshan 2018: 10.29GDSY Open 2019: 9.47Dongguan Summer 2019: 8.21Jieyang Open 2019: 10.41Shenzhen Cubing 10th Anniversary 2019: 8.50Hong Kong Cube Day 2023: 9.34Rubik's WCA World Championship 2023: 9.29Thailand Championship 2023: 8.96Nanchang Spring 2024: 8.81Cube Camp in Nakhon Nayok 2024: 8.73Malaysia 15th Anniversary Championship 2024: 8.33Xi'an Open 2024: 9.58Thailand Championship 2024: 8.42Rubik's WCA Asian Championship 2024: 9.16Cool Down Singapore 2024: 10.52Paradise Park Bangkok NxNxN 2025: 9.56Zhuhai Open 2025: 9.088.2123.251 Oct 201415 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-2 Pyraminx single — 1,476 people have one; it is 0.06 away.
  • A sub-1 2×2 single — 1,032 people have one; it is 0.27 away.

Targets move as he improves.