Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → Republic of Korea → Kim Simin

People · Republic of Korea

Kim Simin

Skewb · top 0.32% of 73,281 all-time · competing since November 2017 · 2017SIMI02

Kim Simin has been competing for 9 years. His best event is the Skewb: a personal-best single of 1.41, set at Tangerang Open 2019, puts him in the top 0.32% of the 73,281 people who have ever been ranked in the event, and 3rd in Republic of Korea. Until October 2015, no official Skewb solve in the world had been that fast. Across 11 competitions since November 2017, he has put 396 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 84% of the 35,811 competitors with ten or more counted rounds. Kim has entered eleven competitions, more competitions than 93% of everyone who has ever competed.

Skewb
best event — top 0.32% of 73,281 all-time
1.41
signature single · Tangerang Open 2019
396
official solves on the record
11%
solve-to-solve spread · steadier than 84% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
Skewb1.413.12
top 0.32%3 / 854
3×3 one-handed11.5014.16
top 2.4%29 / 966
3×38.689.17
top 4.1%246 / 4,352
Pyraminx3.284.46
top 4.6%80 / 1,271
2×22.203.68
top 6.2%175 / 2,319
4×437.5141.71
top 9.3%183 / 1,308
5×51:22.511:27.17
top 21.1%198 / 716
Megaminx1:25.021:41.98
top 24.9%171 / 524
Square-122.0929.75
top 32.7%149 / 371
3×3 Fewest Moves37 moves
early days — 1 solve74 / 173
6×63:54.974:13.05
early days — 3 solves237 / 329
Clock25.5133.14
top 77.6%466 / 536

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

Korean Championship 2018: 9.27Jakarta Open 2018: 10.17Bogor Comeback 2019: 9.07Jakarta Mini Open 2019: 9.36Cube Camp in Wonju 2019: 10.82Tangerang Open 2019: 9.42Cubing Korea 2019: 8.68Seoul Summer 2022: 8.81Rubik's WCA World Championship 2023: 8.768.6810.8220 Jul 201812 Aug 2023

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-1 Skewb single — 35 people have one; it is 0.41 away.
  • A sub-10 3×3 one-handed single — 779 people have one; it is 1.50 away.

Targets move as he improves.