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The Middle Three
People → Republic of Korea → Kim Dae Hoon (김대훈)

People · Republic of Korea

Kim Dae Hoon (김대훈)

3×3 · top 2.2% of 284,439 all-time · competing since May 2017 · 2017HOON03

Kim Dae Hoon (김대훈) has been competing for 9 years. His best event is the 3×3: a personal-best single of 7.66, set at Cubing Operating System Summer 2019, puts him in the top 2.2% of the 284,439 people who have ever been ranked in the event, and 130th in Republic of Korea. Until July 2008, no official 3×3 solve in the world had been that fast. Across 44 competitions since May 2017, he has put 1,011 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 10% around a typical one, steadier than 95% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 13.06 in May 2017 to 7.66, a 41% improvement. Kim has entered 44 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 2.2% of 284,439 all-time
7.66
signature single · Cubing Operating System Summer 2019
1,011
official solves on the record
10%
solve-to-solve spread · steadier than 95% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
3×37.669.22
top 2.2%130 / 4,352
4×438.5445.73
top 10.4%204 / 1,308
6×62:03.262:26.37
top 12.4%63 / 329
5×51:14.491:21.34
top 14.9%157 / 716
Megaminx1:09.031:12.90
top 15.1%104 / 524
7×73:17.853:27.34
top 15.6%59 / 254
2×23.254.77
top 17.2%521 / 2,319
3×3 one-handed19.2322.75
top 18.4%261 / 966
Skewb6.058.09
top 26.1%259 / 854
Pyraminx6.937.92
top 27.3%413 / 1,271
3×3 Fewest Moves36 moves37.00
top 33.6%63 / 173
Clock13.1417.29
top 40.2%268 / 536
Square-129.7335.80
top 48.9%216 / 371

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 Spring Picnic 2017: 13.06Play Cube 2017: 14.75Korean Championship 2017: 13.67Korean CWR Style 2017: 12.95Cubedu Korea 2018: 11.69CWR Winter 2018: 12.84Play Cube 2018: 12.63Korean Championship 2018: 11.51Play Cube X4 2019: 10.72Cubing Operating System Summer 2019: 7.66Korean Championship 2019: 10.58Cubing Korea 2019: 9.29ByeolLae Open 2020: 11.14Korean Championship Mini 2021: 9.30Korean Championship 2022: 8.92Daegu Hot Spring 2023: 8.99Seoul Spring 2023: 9.61Rubik's WCA World Championship 2023: 8.86Hamchang Open 2023: 9.97Seoul Open 2024: 7.88Prime Cubing Day Seoul 2024: 8.74Korea Qualifier - Seoul B 2024: 7.76Ansan Summer 2024: 8.56Korean Championship 2024: 8.07Anyang Haseyo 2025: 9.58Korea Newcomers AM 2025: 9.13Daejeon Spring 2025: 9.91Osan Summer 2025: 8.83Suwon Summer 2025: 9.82Korea Open 2025: 9.33Okcheon Autumn Breeze 2025: 8.21Uhseo Osong 2025: 8.95Korean Championship 2025: 8.66Seoul Winter 2026: 8.14Seoul Spring 2026: 8.94Anyang Haseyo 2026: 9.55Hamoye Jinju 2026: 8.63Uhseo Osong 2026: 9.19Seoul Summer 2026: 9.427.6614.756 May 201719 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-6 3×3 single — 1,376 people have one; it is 1.66 away.
  • A sub-30 4×4 single — 2,388 people have one; it is 8.54 away.

Targets move as he improves.