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People → Republic of Korea → Seo Jin Yang (양서진)

People · Republic of Korea

Seo Jin Yang (양서진)

Pyraminx · top 0.059% of 129,321 all-time · competing since October 2023 · 2023YANG73

Seo Jin Yang (양서진) has been competing for 3 years. His best event is the Pyraminx: a personal-best single of 1.06, set at Korean Championship 2025, puts him in the top 0.059% of the 129,321 people who have ever been ranked in the event, and 2nd in Republic of Korea. Until June 2018, no official Pyraminx solve in the world had been that fast. Across 17 competitions since October 2023, he has put 866 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 67% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 8.78 in October 2023 to 6.29, a 28% improvement. Seo has entered 17 competitions, more competitions than 96% of everyone who has ever competed.

Pyraminx
best event — top 0.059% of 129,321 all-time
1.06
signature single · Korean Championship 2025
866
official solves on the record
14%
solve-to-solve spread · wider than 67% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
Pyraminx1.061.81
top 0.059%2 / 1,271
3×36.298.30
top 0.68%48 / 4,352
2×21.181.67
top 0.98%23 / 2,319
4×426.0334.55
top 1%25 / 1,308
Clock3.193.67
top 1.0%8 / 536
Skewb1.883.94
top 1.1%12 / 854
3×3 one-handed10.9813.66
top 1.8%23 / 966
Square-17.1611.75
top 2.0%10 / 371
5×51:08.311:20.99
top 10.4%110 / 716
Megaminx1:10.811:19.48
top 16.1%112 / 524
3×3 blindfolded2:42.06—
early days — 3 solves113 / 217
7×74:54.165:31.68
top 49.0%156 / 254
6×63:29.513:41.08
top 54.5%211 / 329

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

Suncheon Fall 2023: 8.78Korean Championship 2023: 10.63Busan Spring 2024: 9.56Prime Cubing Day Seoul 2024: 10.15Korean Championship 2024: 7.87Seoul Winter 2024: 8.58Suwon Summer 2025: 9.19Korea Open 2025: 6.46Okcheon Autumn Breeze 2025: 7.01Korean Championship 2025: 7.74Cube Camp in Jeju 2026: 7.77Hamoye Jinju 2026: 6.29Uhseo Osong 2026: 7.93Korea Open 2026: 7.676.2910.6329 Oct 202315 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 his.

Next targets

  • A sub-1 Pyraminx single — 49 people have one; it is 0.06 away.
  • A sub-6 3×3 single — 1,376 people have one; it is 0.29 away.

Targets move as he improves.