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The Middle Three
People → Republic of Korea → Jungwoo Kim (김정우)

People · Republic of Korea

Jungwoo Kim (김정우)

Skewb · top 1.2% of 73,281 all-time · competing since February 2014 · 2014KIMJ02

Jungwoo Kim (김정우) has been competing for 13 years. His best event is the Skewb: a personal-best single of 1.92, set at Rubik's WCA World Championship 2023, puts him in the top 1.2% of the 73,281 people who have ever been ranked in the event, and 15th in Republic of Korea. Until December 2014, no official Skewb solve in the world had been that fast. Across 47 competitions since February 2014, he has put 1,858 official solves on the record across 17 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 78% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.33 in February 2014 to 6.97, a 62% improvement. Jungwoo has entered 47 competitions, more competitions than 99% of everyone who has ever competed.

Skewb
best event — top 1.2% of 73,281 all-time
1.92
signature single · Rubik's WCA World Championship 2023
1,858
official solves on the record
12%
solve-to-solve spread · steadier than 78% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
Skewb1.923.27
top 1.2%15 / 854
3×36.978.53
top 1.3%80 / 4,352
2×21.753.31
top 3.3%92 / 2,319
Pyraminx3.004.29
top 3.6%65 / 1,271
3×3 Multi-Blind23 of 26 cubes · 56:31—
top 4.8%4 / 74
3×3 blindfolded35.2341.42
top 5.6%16 / 217
4×434.7939.11
top 6.5%143 / 1,308
Megaminx57.251:03.38
top 8.5%60 / 524
3×3 one-handed15.7118.70
top 9.6%139 / 966
Square-113.6925.23
top 13.5%51 / 371
5×51:17.131:20.02
top 16.9%172 / 716
3×3 Fewest Moves32 moves36.67
top 20.4%41 / 173
6×62:21.052:43.29
top 21.1%96 / 329
Clock10.3012.08
top 26.6%175 / 536
4×4 blindfolded6:40.128:56.23
top 34.5%26 / 48
7×74:12.064:32.89
top 35.0%119 / 254
5×5 blindfolded20:22.00—
early days — 1 solve25 / 33

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

Caltech Winter Open 2014: 18.33Berkeley Spring 2014: 19.66Caltech Spring Open 2014: 18.38San Diego Summer Splash 2014: 17.34Newport Cube Day 2014: 14.21Nisei Week 2014: 16.84Antelope Valley Fall 2014: 13.94Caltech Fall Open 2014: 15.00Newport Winter Open 2014: 13.27Nub Open 2015: 13.78St. Francis Winter Open 2015: 15.38Caltech Winter Open 2015: 12.01Orange Coast Puzzle Meet 2015: 13.01San Diego Summer Splash 2015: 13.30SoCal Supercomp 2015: 12.21US Nationals 2015: 11.72Irvine Fall 2015: 13.03Caltech Fall 2015: 12.68Caltech Winter 2016: 10.91Newport Spring 2016: 8.53St. Francis II: GYM 2016: 10.57Poly Cubed 2016: 10.43TFTI San Diego 2016: 10.09SoCal Supercomp 2016: 11.29US Nationals 2016: 9.97Newport Fall 2016: 9.40Caltech Winter 2017: 9.97Qualifornia 2017: 10.22CubingUSA Nationals 2017: 8.90Newport Fall 2017: 9.25Poly Cubed 2017: 8.43Irvine Winter 2018: 8.79CubingUSA Western Championship 2018: 8.22Anaheim Fall 2018: 8.99Seoul Winter 2019: 8.69Cutory Blossom 2019: 9.17Seoul Summer 2022: 8.36Korean Championship 2022: 7.67Singapore Championship 2023: 8.53Daegu Hot Spring 2023: 8.33Rubik's WCA World Championship 2023: 6.97Korean Championship 2025: 8.69Ansan Favorites 2026: 8.186.9719.6622 Feb 20147 Feb 2026

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 0.92 away.
  • A sub-6 3×3 single — 1,376 people have one; it is 0.97 away.

Targets move as he improves.