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People → Republic of Korea → Oh Chang-Min (오창민)

People · Republic of Korea

Oh Chang-Min (오창민)

4×4 · top 4.5% of 83,917 all-time · competing since July 2018 · 2018CHAN39

Oh Chang-Min (오창민) has been competing for 8 years. His best event is the 4×4: a personal-best single of 32.44, set at Busan Spring 2024, puts him in the top 4.5% of the 83,917 people who have ever been ranked in the event, and 92nd in Republic of Korea. Until November 2010, no official 4×4 solve in the world had been that fast. Across 48 competitions since July 2018, he has put 1,230 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 64% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 13.52 in July 2018 to 9.28, a 31% improvement. Oh has entered 48 competitions, more competitions than 99% of everyone who has ever competed.

4×4
best event — top 4.5% of 83,917 all-time
32.44
signature single · Busan Spring 2024
1,230
official solves on the record
12%
solve-to-solve spread · steadier than 64% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
4×432.4442.06
top 4.5%92 / 1,308
3×39.2810.68
top 5.5%333 / 4,352
Megaminx53.3659.61
top 6.7%50 / 524
5×51:05.141:13.19
top 8.5%92 / 716
6×61:58.612:13.85
top 10.5%54 / 329
2×22.684.28
top 10.7%316 / 2,319
3×3 one-handed16.9020.55
top 12.3%173 / 966
Pyraminx5.056.87
top 13.5%203 / 1,271
7×73:11.183:27.82
top 13.7%52 / 254
Skewb4.538.10
top 14.7%161 / 854
Clock9.8112.29
top 24.1%162 / 536
Square-118.8721.68
top 25.4%114 / 371
3×3 Fewest Moves36 moves42.67
top 33.6%63 / 173

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: 13.52Cubing Korea 2019: 11.03ByeolLae Open 2020: 12.53Korean Championship Mini 2021: 12.75Korean Spring 2022: 11.27Seoul Summer 2022: 12.42Korean Championship 2022: 11.55Cubing SimCheong Open 2022: 10.64KAIST Fall 2022: 13.42Daegu Hot Spring 2023: 11.06Seoul Spring 2023: 10.79Seoul Open 2024: 10.54Busan Spring 2024: 10.72Prime Cubing Day Seoul 2024: 11.75Korea Qualifier - Seoul B 2024: 12.72Ansan Summer 2024: 12.14Korean Championship 2024: 10.86Brown Fall Seongnam 2024: 11.17Seoul Winter 2024: 10.71Happy Suseong 2025: 12.38Korea Newcomers AM 2025: 11.40Daejeon Spring 2025: 10.21Osan Summer 2025: 11.38Suwon Summer 2025: 11.17Korea Open 2025: 10.00We Laugh Pohanghang 2025: 11.33Okcheon Autumn Breeze 2025: 10.06Uhseo Osong 2025: 11.09Seoul Winter 2026: 9.28Cube Camp in Jeju 2026: 11.82Seoul Spring 2026: 10.20Anyang Haseyo 2026: 9.69Hamoye Jinju 2026: 10.46Uhseo Osong 2026: 9.81Seoul Summer 2026: 9.669.2813.5220 Jul 201819 Jul 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-30 4×4 single — 2,388 people have one; it is 2.44 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 1.28 away.

Targets move as he improves.