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People · Germany

David Quach

3×3 · top 6.7% of 288,433 all-time · competing since January 2011 · 2011QUAC01

David Quach has been competing for 16 years. His best event is the 3×3: a personal-best single of 9.72, set at German Open 2012, puts him in the top 6.7% of the 288,433 people who have ever been ranked in the event, and 353rd in Germany. Until November 2007, no official 3×3 solve in the world had been that fast. Across 9 competitions since January 2011, he has put 308 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 14% around a typical one; 76% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 20.83 in January 2011 to 9.72, a 53% improvement. David has entered nine competitions, more competitions than 91% of everyone who has ever competed.

3×3
best event — top 6.7% of 288,433 all-time
9.72
signature single · German Open 2012
308
official solves on the record
14%
solve-to-solve spread · wider than 76% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingGermany
3×39.7211.63
top 6.7%353 / 4,182
2×22.304.01
top 7.1%288 / 2,931
Pyraminx6.099.24
top 20.7%534 / 2,020
4×448.0855.75
top 22.3%422 / 1,966
3×3 one-handed20.7521.72
top 22.6%304 / 1,328
5×51:32.911:44.47
top 29.8%318 / 1,175
6×63:06.913:57.92
top 44.3%226 / 595
Megaminx2:41.86—
early days — 2 solves500 / 798
7×76:31.446:47.73
top 74.9%332 / 521

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

Aachen Open 2011: 20.83German Open 2011: 17.16Düsseldorf Open 2011: 12.41V-CUBE Spiel 2011: 14.65German Open 2012: 9.72Aachen Summer Open 2012: 11.36German Nationals 2012: 10.219.7220.8314 Jan 20113 Nov 2012

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 — 8,101 people have one; it is 1.72 away.
  • A sub-2 2×2 single — 9,039 people have one; it is 0.30 away.

Targets move as he improves.