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People → China → Haijun Tan (谭海俊)

People · China

Haijun Tan (谭海俊)

3×3 blindfolded · top 4.0% of 12,178 all-time · competing since October 2011 · 2011TANH01

Haijun Tan (谭海俊) has been competing for 15 years. His best event is the 3×3 blindfolded: a personal-best single of 29.63, set at Guangdong Open - Revival & Rival 2026, puts him in the top 4.0% of the 12,178 people who have ever been ranked in the event, and 68th in China. Until February 2012, no official 3×3 blindfolded solve in the world had been that fast. Across 33 competitions since October 2011, he has put 516 official solves on the record across 16 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 67% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.75 in December 2011 to 10.60, a 43% improvement. Haijun has entered 33 competitions, more competitions than 98% of everyone who has ever competed.

3×3 blindfolded
best event — top 4.0% of 12,178 all-time
29.63
signature single · Guangdong Open - Revival & Rival 2026
516
official solves on the record
12%
solve-to-solve spread · steadier than 67% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
3×3 blindfolded29.6336.72
top 4.0%68 / 1,183
3×3 Multi-Blind21 of 21 cubes · 56:37—
top 4.3%16 / 278
4×4 blindfolded2:36.084:24.93
top 5.9%13 / 149
Pyraminx3.767.23
top 6.5%774 / 10,224
3×310.6014.02
top 9.3%3,624 / 28,153
7×73:14.033:17.19
top 14.5%288 / 1,261
5×5 blindfolded9:07.91—
top 18.2%22 / 95
4×447.2357.80
top 21.1%2,277 / 5,926
6×62:23.032:33.51
top 22.0%488 / 1,349
Skewb5.787.23
top 24.1%1,489 / 5,004
5×51:26.391:31.04
top 24.4%1,148 / 2,816
Megaminx1:35.081:40.04
top 31.4%935 / 1,678
2×24.505.22
top 32.9%5,640 / 15,796
3×3 one-handed30.43—
early days — 2 solves4,181 / 5,922
Clock16.0219.67
top 51.9%1,216 / 1,843
Square-139.5259.37
top 64.8%1,079 / 1,362

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

Guangzhou Winter 2011: 18.75Guangzhou SCUT 2012: 18.16Guangdong Open 2012: 15.02Guangzhou HEMC Cubing Movement 2012: 17.43Guangzhou SCAU Open 2013: 18.18Guangzhou CCSA Championship 2013: 16.56Guangdong Open 2014: 17.06China's 10th Anniversary Championship 2017: 10.86GDSY Open 2018: 13.47Shenzhen Cubing 10th Anniversary 2019: 13.95Guangzhou Panyu Afternoon 2021: 12.97Guangdong Open 2021: 13.49Guangdong Open - Revival & Rival 2026: 10.60Foshan Open 2026: 11.54Guangzhou GraDUAL 3x3 II 2026: 10.78Guangzhou GraDUAL 3x3 III 2026: 12.6910.6018.753 Dec 20112 Sep 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-25 3×3 blindfolded single — 355 people have one; it is 4.63 away.
  • A sub-2:00 4×4 blindfolded single — 56 people have one; it is 36.08 away.

Targets move as he improves.