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The Middle Three
People → Republic of Korea → JunHyeong Choi (최준형)

People · Republic of Korea

JunHyeong Choi (최준형)

Pyraminx · top 6.7% of 129,321 all-time · competing since September 2022 · 2022CHOI16

JunHyeong Choi (최준형) has been competing for 4 years. His best event is the Pyraminx: a personal-best single of 3.79, set at Hamchang Winter 2024, puts him in the top 6.7% of the 129,321 people who have ever been ranked in the event, and 110th in Republic of Korea. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 19 competitions since September 2022, he has put 421 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 80% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 25.38 in September 2022 to 9.81, a 61% improvement. JunHyeong has entered 19 competitions, more competitions than 97% of everyone who has ever competed.

Pyraminx
best event — top 6.7% of 129,321 all-time
3.79
signature single · Hamchang Winter 2024
421
official solves on the record
12%
solve-to-solve spread · steadier than 80% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
Pyraminx3.797.98
top 6.7%110 / 1,271
3×39.8112.06
top 6.9%407 / 4,352
Square-110.4815.01
top 7.0%28 / 371
Clock8.5011.08
top 17.5%122 / 536
Skewb5.088.56
top 18.8%195 / 854
4×445.9853.35
top 19.5%356 / 1,308
2×23.494.56
top 20.1%604 / 2,319
3×3 blindfolded1:31.862:13.31
top 23.8%65 / 217
3×3 one-handed26.6833.60
top 38.5%490 / 966
5×51:50.682:06.42
top 43.0%365 / 716
Megaminx1:56.312:06.99
top 43.8%277 / 524
6×63:48.814:14.81
top 61.9%234 / 329
7×77:17.827:37.94
top 82.8%238 / 254

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

Daegu Hot Autumn 2022: 25.38Daegu Hot Spring 2023: 17.58Rubik's WCA World Championship 2023: 14.03Hamchang Open 2023: 10.92Korean Championship 2023: 11.29Daegu Cold Winter 2024: 11.06Anyang Haseyo 2024: 13.69Hamchang Winter 2024: 11.38Hanoi Winter 2024: 11.79Anyang Haseyo 2025: 10.50Daejeon Spring 2025: 9.81We Laugh Pohanghang 2025: 12.239.8125.3817 Sep 202214 Sep 2025

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-3 Pyraminx single — 4,700 people have one; it is 0.79 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 1.81 away.

Targets move as he improves.