People · Republic of Korea
Junseop Kim (김준섭)
Square-1 · top 0.36% of 25,272 all-time · competing since February 2017 · 2017KIMJ02
Junseop Kim (김준섭) has been competing for 10 years. His best event is the Square-1: a personal-best single of 5.27, set at Anyang Haseyo 2024, puts him in the top 0.36% of the 25,272 people who have ever been ranked in the event, and 4th in Republic of Korea. Until October 2018, no official Square-1 solve in the world had been that fast. Across 24 competitions since February 2017, he has put 534 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 63% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 13.30 in February 2017 to 8.01, a 40% improvement. Junseop has entered 24 competitions, more competitions than 97% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Republic of Korea | |
|---|---|---|---|---|---|
| Square-1 | 5.27 | 5.76 | top 0.36% | 4 / 371 | |
| 2×2 | 1.62 | 3.41 | top 2.7% | 79 / 2,319 | |
| 3×3 | 8.01 | 9.47 | top 2.8% | 183 / 4,352 | |
| 4×4 | 31.06 | 37.56 | top 3.5% | 73 / 1,308 | |
| 3×3 one-handed | 12.43 | 18.43 | top 3.6% | 44 / 966 | |
| 5×5 | 59.05 | 1:08.05 | top 5.0% | 58 / 716 | |
| Pyraminx | 3.62 | 6.02 | top 6.0% | 102 / 1,271 | |
| Megaminx | 55.20 | 1:01.71 | top 7.5% | 56 / 524 | |
| Skewb | 3.57 | 5.98 | top 8.2% | 86 / 854 | |
| 6×6 | 2:25.77 | 2:37.07 | top 23.5% | 107 / 329 | |
| Clock | 11.05 | 12.34 | top 30.3% | 202 / 536 | |
| 7×7 | 4:31.92 | 4:47.81 | early days — 3 solves | 133 / 254 | |
| 3×3 Fewest Moves | 44 moves | 46.33 | early days — 3 solves | 126 / 173 | |
| 3×3 blindfolded | 3:37.80 | — | early days — 2 solves | 156 / 217 |
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
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 12 Aug 2022Four personal bests in one day at Korean Championship 2022.
- 1 Feb 2020Three personal bests in one day at ByeolLae Open 2020.
- 16 Aug 2019Three personal bests in one day at Korean Championship 2019.
- 20 Jul 2019Four personal bests in one day at Cube Camp in Wonju 2019.
- 23 Feb 2019Three personal bests in one day at Seoul Winter 2019.
- 30 Dec 2017First sub-10 3×3: 8.80 at Korean CWR Style 2017.
Competitions
- Ansan Favorites 2026 · 7 Feb 2026 — 1 personal best set
- Korean Championship 2025 · 27 Dec 2025
- Happy Suseong 2025 · 18 Jan 2025 — 1 personal best set
- Anyang Haseyo 2024 · 9 Mar 2024 — 1 personal best set
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 2 personal bests set
- Ansan Spring 2023 · 26 Mar 2023 — 1 personal best set
- Korean Championship 2022 · 12 Aug 2022 — 4 personal bests set
- Seoul Summer 2022 · 23 Jul 2022 — 2 personal bests set
- ByeolLae Open 2020 · 1 Feb 2020 — 3 personal bests set
- Cubing Korea 2019 · 28 Dec 2019 — 1 personal best set
- Korean Championship 2019 · 16 Aug 2019 — 3 personal bests set
- Cube Camp in Wonju 2019 · 20 Jul 2019 — 4 personal bests set
- Cutory Blossom 2019 · 6 Apr 2019 — 2 personal bests set
- Seoul Winter 2019 · 23 Feb 2019 — 3 personal bests set
- Korea Winter 2019 · 19 Jan 2019 — 2 personal bests set
- Korean Championship 2018 · 20 Jul 2018
- Play Cube 2018 · 13 May 2018
- CWR Winter 2018 · 24 Feb 2018 — 2 personal bests set
- Korean CWR Style 2017 · 30 Dec 2017 — 5 personal bests set
- FMC Asia 2017 · 9 Dec 2017
- CWR Fall 2017 · 28 Oct 2017 — 1 personal best set
- Korean Championship 2017 · 28 Jul 2017 — 2 personal bests set
- Play Cube 2017 · 28 May 2017
- 3x3x3 HanMaDang 2017 · 18 Feb 2017
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.
- DongSoo Park (박동수) — met in 106 rounds, finished ahead 26 times
- Choi Goho (최고호) — met in 94 rounds, finished ahead 72 times
- Jaemin Chang (장재민) — met in 86 rounds, finished ahead 13 times · head to head
Next targets
- A sub-5 Square-1 single — 68 people have one; it is 0.27 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.62 away.
Targets move as he improves.