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The Middle Three
People → Republic of Korea → SeoYeon Ju (주서연)

People · Republic of Korea

SeoYeon Ju (주서연)

Pyraminx · top 10.8% of 129,321 all-time · competing since February 2024 · 2024JUSE01

SeoYeon Ju (주서연) has been competing for 3 years. Her best event is the Pyraminx: a personal-best single of 4.59, set at Korea Open 2025, puts her in the top 10.8% of the 129,321 people who have ever been ranked in the event, and 173rd in Republic of Korea. Across 7 competitions since February 2024, she has put 152 official solves on the record across seven events. Solve to solve, her 3×3 times vary about 9% around a typical one, an early reading from 8 counted rounds. That figure sets aside her 2 DNFs. Her 3×3 best has come down from 36.28 in February 2024 to 13.03, a 64% improvement. SeoYeon has entered seven competitions, more competitions than 88% of everyone who has ever competed.

Pyraminx
best event — top 10.8% of 129,321 all-time
4.59
signature single · Korea Open 2025
152
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
Pyraminx4.597.52
top 10.8%173 / 1,271
Skewb4.465.42
top 14.2%150 / 854
3×313.0315.21
top 17.5%983 / 4,352
2×23.404.65
top 19.0%572 / 2,319
Clock11.5612.46
top 32.9%218 / 536
3×3 one-handed25.4437.57
top 35.4%451 / 966
4×41:08.281:13.94
top 45.1%750 / 1,308

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 Cold Winter 2024: 36.28Busan Spring 2024: 22.69Hamchang Winter 2024: 15.80Happy Suseong 2025: 13.11Korea Open 2025: 14.10Korea Open 2026: 13.0313.0336.283 Feb 202415 Aug 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 her.

Next targets

  • A sub-4 Pyraminx single — 9,892 people have one; it is 0.59 away.
  • A sub-4 Skewb single — 7,977 people have one; it is 0.46 away.

Targets move as she improves.