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The Middle Three
People → China → Haobo Zhang (张浩博)

People · China

Haobo Zhang (张浩博)

Pyraminx · top 5.0% of 130,891 all-time · competing since August 2015 · 2015ZHAN57

Haobo Zhang (张浩博) has been competing for 11 years. His best event is the Pyraminx: a personal-best single of 3.38, set at China Championship 2017, puts him in the top 5.0% of the 130,891 people who have ever been ranked in the event, and 611th in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 7 competitions since August 2015, he has put 317 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 13% around a typical one; 53% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 2×2 best has come down from 4.56 in August 2015 to 2.77, a 39% improvement. Haobo has entered seven competitions, more competitions than 88% of everyone who has ever competed.

Pyraminx
best event — top 5.0% of 130,891 all-time
3.38
signature single · China Championship 2017
317
official solves on the record
13%
solve-to-solve spread · wider than 53% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
Pyraminx3.384.71
top 5.0%611 / 10,269
3×310.5913.00
top 9.3%3,689 / 28,499
Skewb3.915.74
top 10.3%622 / 5,030
2×22.774.23
top 11.7%1,836 / 15,939
3×3 one-handed18.2219.95
top 15.7%1,567 / 5,994
4×447.3453.91
top 21.3%2,340 / 5,999
Square-120.8025.10
top 29.8%515 / 1,373
Megaminx1:33.981:39.00
top 30.8%933 / 1,693
5×51:39.271:44.76
top 34.8%1,602 / 2,857
7×75:11.06—
early days — 1 solve946 / 1,274
6×63:57.97—
early days — 1 solve1,147 / 1,363

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

Wuxi Open 2015: 4.56Zibo Open 2015: 2.91Qingdao Open 2016: 3.47Linyi Open 2016: 3.59Asian Championship 2016: 2.77China Championship 2017: 3.112.774.568 Aug 201528 Jul 2017

Best single per competition, 2×2. 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-3 Pyraminx single — 4,783 people have one; it is 0.38 away.
  • A sub-10 3×3 single — 21,606 people have one; it is 0.59 away.

Targets move as he improves.