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The Middle Three
People → Republic of Korea → SeungO Han (한승오)

People · Republic of Korea

SeungO Han (한승오)

3×3 · top 0.27% of 284,439 all-time · competing since January 2019 · 2019HANS03

SeungO Han (한승오) has been competing for 8 years. His best event is the 3×3: a personal-best single of 5.55, set at Ansan Summer 2024, puts him in the top 0.27% of the 284,439 people who have ever been ranked in the event, and 20th in Republic of Korea. Until March 2013, no official 3×3 solve in the world had been that fast. Across 35 competitions since January 2019, he has put 1,108 official solves on the record across 15 events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 53% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 15.39 in January 2019 to 5.55, a 64% improvement. SeungO has entered 35 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 0.27% of 284,439 all-time
5.55
signature single · Ansan Summer 2024
1,108
official solves on the record
13%
solve-to-solve spread · steadier than 53% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
3×35.556.20
top 0.27%20 / 4,352
5×541.8151.37
top 0.3%4 / 716
2×21.031.43
top 0.62%11 / 2,319
3×3 one-handed9.4112.08
top 0.7%12 / 966
4×425.5829.18
top 0.86%23 / 1,308
Square-16.277.68
top 0.97%5 / 371
Skewb1.833.29
top 0.97%10 / 854
Pyraminx2.073.07
top 1.3%28 / 1,271
Megaminx40.5742.02
top 1.7%14 / 524
Clock3.954.78
top 2.2%15 / 536
6×61:33.281:40.66
top 2.5%14 / 329
7×72:38.602:44.79
top 5.2%21 / 254
3×3 Fewest Moves26 moves30.67
top 6.2%14 / 173
3×3 blindfolded3:53.07—
early days — 3 solves165 / 217
3×3 Multi-Blind2 of 3 cubes · 16:01—
early days — 1 solve62 / 74

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

Korea Winter 2019: 15.39Play Cube X4 2019: 11.18Korean Championship Mini 2021: 9.44Seoul Summer 2022: 7.53Korean Championship 2022: 6.78Daegu Hot Autumn 2022: 7.44Cubing SimCheong Open 2022: 6.77KAIST Fall 2022: 7.36Seoul Spring 2023: 7.20Rubik's WCA World Championship 2023: 6.96Suncheon Fall 2023: 5.67Hamchang Open 2023: 6.45Seoul Open 2024: 5.78Daegu Cold Winter 2024: 6.26Anyang Haseyo 2024: 5.96Busan Spring 2024: 5.60Prime Cubing Day Seoul 2024: 5.87Ansan Summer 2024: 5.55Brown Fall Seongnam 2024: 5.92Hamchang Winter 2024: 6.47Seoul Winter 2024: 6.44Suwon Summer 2025: 5.69Korean Championship 2025: 5.88Ansan Favorites 2026: 6.095.5515.3919 Jan 20197 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-5 3×3 single — 344 people have one; it is 0.55 away.
  • A sub-40 5×5 single — 68 people have one; it is 1.81 away.

Targets move as he improves.