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The Middle Three
People → Republic of Korea → SeungBeom Cho (조승범)

People · Republic of Korea

SeungBeom Cho (조승범)

3×3 · top 0.054% of 284,439 all-time · competing since June 2012 · 2012CHOS01

SeungBeom Cho (조승범) has been competing for 14 years. His best event is the 3×3: a personal-best single of 4.59, set at ChicaGhosts 2017, puts him in the top 0.054% of the 284,439 people who have ever been ranked in the event, and 3rd in Republic of Korea. Until October 2017, no official 3×3 solve in the world had been that fast. Across 20 competitions since June 2012, he has put 1,017 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 63% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 10.68 in June 2012 to 4.59, a 57% improvement. SeungBeom has entered 20 competitions, more competitions than 97% of everyone who has ever competed.

3×3
best event — top 0.054% of 284,439 all-time
4.59
signature single · ChicaGhosts 2017
1,017
official solves on the record
14%
solve-to-solve spread · wider than 63% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
3×34.597.53
top 0.054%3 / 4,352
4×425.3629.39
top 0.8%21 / 1,308
2×21.151.84
top 0.9%20 / 2,319
3×3 one-handed11.2712.43
top 2.1%26 / 966
Skewb2.444.29
top 2.7%30 / 854
5×554.911:01.05
top 3.3%39 / 716
Pyraminx3.533.95
top 5.6%98 / 1,271
6×61:50.551:55.61
top 7.4%34 / 329
7×72:52.263:02.26
top 8.5%33 / 254
Megaminx1:06.871:14.73
top 13.8%93 / 524
Square-115.7720.93
top 18.2%76 / 371
3×3 Fewest Moves33 moves—
early days — 3 solves48 / 173
3×3 blindfolded1:31.30—
early days — 3 solves64 / 217

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

Dixon Open 2012: 10.68Indiana 2012: 8.03Dixon Winter 2013: 9.00World Rubik's Cube Championship 2013: 7.65UIUC Fall 2013: 8.18Dixon Spring 2014: 8.19US Nationals 2014: 7.30Wiscube 2014: 6.68Michigan Cubing Club Beta 2015: 7.98Dixon Summer 2015: 7.86Cubic Catastrophe 2015: 7.30Bulldog Cubing 2017: 6.54ChicaGhosts 2017: 4.59Dixon Winter 2017: 6.69Lions Cubing 2018: 6.38Elk Cubing 2018: 5.48Three Seconds Snakes 2018: 6.69Indianapolis Fall 2018: 6.41Chicago Area Twist Spring 2019: 6.99UIUC Fall 2019: 6.584.5910.6816 Jun 20121 Dec 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.

Next targets

  • A sub-4 3×3 single — 38 people have one; it is 0.59 away.
  • A sub-25 4×4 single — 588 people have one; it is 0.36 away.

Targets move as he improves.