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The Middle Three
People → Republic of Korea → Jinseo Hong

People · Republic of Korea

Jinseo Hong

4×4 · top 0.17% of 83,917 all-time · competing since September 2017 · 2017HONG17

Jinseo Hong has been competing for 9 years. His best event is the 4×4: a personal-best single of 21.85, set at New York Championship 2022, puts him in the top 0.17% of the 83,917 people who have ever been ranked in the event, and 6th in Republic of Korea. Until October 2015, no official 4×4 solve in the world had been that fast. Across 41 competitions since September 2017, he has put 2,205 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 90% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.07 in September 2017 to 6.03, a 67% improvement. Jinseo has entered 41 competitions, more competitions than 99% of everyone who has ever competed.

4×4
best event — top 0.17% of 83,917 all-time
21.85
signature single · New York Championship 2022
2,205
official solves on the record
11%
solve-to-solve spread · steadier than 90% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
4×421.8527.41
top 0.17%6 / 1,308
Pyraminx1.502.36
top 0.42%9 / 1,271
5×543.2648.72
top 0.46%5 / 716
3×36.037.43
top 0.5%36 / 4,352
Skewb1.793.65
top 0.9%9 / 854
6×61:25.071:33.31
top 1.1%8 / 329
2×21.322.62
top 1.4%34 / 2,319
3×3 one-handed10.9012.26
top 1.7%22 / 966
Square-18.8413.03
top 4.3%18 / 371
7×72:35.362:48.90
top 4.6%18 / 254
Megaminx51.0957.39
top 5.6%43 / 524
Clock6.628.85
top 9.6%64 / 536
3×3 Fewest Moves36 moves43.33
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

Princeton Fall 2017: 18.07Liberty Science Center Open 2017: 13.79Incredible Pencil Mania 2018: 11.87NovaCube 2018: 11.79First State 2018: 11.67WCA European Championship 2018: 9.81Lower Moreland Fall 2018: 9.35CubingUSA New Jersey Championship 2018: 8.89Liberty Science Center Open 2018: 8.93Hudson Valley Winter 2019: 9.37Princeton Winter 2019: 8.72Long Island Winter 2019: 8.77Lower Moreland Winter 2019: 8.03George School Open 2019: 7.66Brooklyn 2019: 8.47Colonie Spring 2019: 8.62Hudson Valley Summer 2019: 7.92Korean Championship 2019: 7.54Ridge Cubing Fall 2019: 8.06Providence Fall 2019: 7.98Brooklyn Fall 2019: 8.63No Place For DNF Fall 2019: 7.61Liberty Science Center Open 2019: 8.33Princeton Winter 2020: 8.00Babylon Winter 2020: 8.11Empire State Summer A 2021: 7.14Slow N Steady Fall 2021: 7.25New York Championship 2022: 6.03Rubik's WCA European Championship 2022: 6.32Princeton Fall 2022: 6.73Sleepless in Seattle 2023: 7.06CubingUSA Mid-Atlantic Championship 2023: 6.82Rubik's WCA World Championship 2023: 7.27Mid-Atlantic Speedcubing Championship 2026: 6.916.0318.0723 Sep 201714 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.

  • AJ Kamal — met in 196 rounds, finished ahead 97 times
  • Patrick Ponce — met in 176 rounds, finished ahead 13 times
  • Livia Kleiner — met in 170 rounds, finished ahead 53 times

Next targets

  • A sub-20 4×4 single — 42 people have one; it is 1.85 away.
  • A sub-1 Pyraminx single — 49 people have one; it is 0.50 away.

Targets move as he improves.