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People · United States

Kevin Zhou

2×2 · top 3.3% of 186,767 all-time · competing since May 2008 · 2008ZHOU01

Kevin Zhou has been competing for 18 years. His best event is the 2×2: a personal-best single of 1.75, set at United States Rubik's Cube Championships 2010, puts him in the top 3.3% of the 186,767 people who have ever been ranked in the event, and 1,289th in the United States. Until February 2008, no official 2×2 solve in the world had been that fast. Across 30 competitions since May 2008, he has put 950 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 68% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 27.62 in May 2008 to 8.70, a 69% improvement. Kevin has entered 30 competitions, more competitions than 98% of everyone who has ever competed.

2×2
best event — top 3.3% of 186,767 all-time
1.75
signature single · United States Rubik's Cube Championships 2010
950
official solves on the record
12%
solve-to-solve spread · steadier than 68% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
2×21.752.64
top 3.3%1,289 / 40,951
3×38.7011.33
top 4.2%2,331 / 59,724
Pyraminx3.9710.84
top 7.5%1,914 / 28,708
3×3 one-handed17.5822.51
top 14.0%1,819 / 15,683
4×443.1952.57
top 16.0%2,431 / 19,072
3×3 Fewest Moves34 moves39.33
top 26.7%586 / 2,040
5×51:44.591:51.51
top 38.8%3,115 / 9,401
7×76:26.156:57.47
early days — 3 solves2,278 / 3,184
6×64:41.865:28.46
early days — 3 solves3,087 / 4,196
3×3 blindfolded5:37.05—
early days — 1 solve1,736 / 2,092

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

Washington DC Open 2008: 27.62Virginia Open 2008: 18.19Cumberland Valley Open 2009: 13.40US Nationals 2009: 14.11Washington DC Open 2010: 13.81Baltimore Spring competition 2010: 11.96Washington DC Spring 2010: 11.77United States Rubik's Cube Championships 2010: 11.28Virginia Open 2010: 9.68River Hill Fall 2010: 11.65Washington DC Winter 2011: 11.27Cornell Spring 2011: 9.22Hefei After Term Open 2011: 11.05Yale Fall 2011: 12.18Yale Spring 2012: 10.81Captain's Cove competition 2012: 9.69United States National Championships 2012: 8.70Yale Fall 2012: 11.19Yale Spring 2013: 11.21World Rubik's Cube Championship 2013: 11.18Yale Fall 2013: 10.13Yale Spring 2014: 9.42JRCA Kansai Summer 2014: 9.72US Nationals 2014: 9.47Yale Spring 2015: 10.79Slow n Steady Spring 2015: 10.06JRCA Kansai Summer 2015: 9.83Wolfpack Winter 2019: 10.40Rocky The Ram Cubes 2019: 9.978.7027.6217 May 200814 Sep 2019

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.

  • Bob Burton — met in 109 rounds, finished ahead 90 times
  • Evan Liu — met in 93 rounds, finished ahead 60 times
  • Tim Reynolds — met in 93 rounds, finished ahead 52 times

Next targets

  • A sub-1 2×2 single — 1,032 people have one; it is 0.75 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 0.70 away.

Targets move as he improves.