People · Republic of Korea
Jaemin Jeon (전재민)
2×2 · top 4.8% of 186,767 all-time · competing since December 2011 · 2011JAEM01
Jaemin Jeon (전재민) has been competing for 15 years. His best event is the 2×2: a personal-best single of 2.01, set at Play Cube X4 2019, puts him in the top 4.8% of the 186,767 people who have ever been ranked in the event, and 130th in Republic of Korea. Until February 2008, no official 2×2 solve in the world had been that fast. Across 19 competitions since December 2011, he has put 343 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 52% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 21.91 in December 2011 to 10.62, a 52% improvement. Jaemin has entered 19 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 | |
|---|---|---|---|---|---|
| 2×2 | 2.01 | 4.72 | top 4.8% | 130 / 2,319 | |
| 4×4 | 36.23 | 41.99 | top 7.9% | 163 / 1,308 | |
| 3×3 | 10.62 | 13.06 | top 9.3% | 532 / 4,352 | |
| Pyraminx | 4.72 | 7.19 | top 11.5% | 182 / 1,271 | |
| 5×5 | 1:12.01 | 1:23.50 | top 13.1% | 136 / 716 | |
| 3×3 one-handed | 17.25 | 22.27 | top 13.2% | 188 / 966 | |
| Clock | 7.70 | 8.80 | top 13.8% | 95 / 536 | |
| Megaminx | 1:13.92 | 1:22.19 | top 18.0% | 126 / 524 | |
| 6×6 | 2:31.90 | 2:47.43 | top 26.6% | 118 / 329 | |
| 7×7 | 3:51.54 | 4:11.79 | top 27.7% | 98 / 254 | |
| Skewb | 7.91 | 12.33 | top 40.6% | 403 / 854 |
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.
- 19 Jan 2019Three personal bests in one day at Korea Winter 2019.
- 20 Dec 2014First sub-20 3×3: 13.02 at Korean Christmas Cup 2014.
- 20 Dec 2014First sub-15 3×3: 13.02 at Korean Christmas Cup 2014.
- 22 Dec 2012Three personal bests in one day at Magics Korea 2012.
- 15 Jan 2012Three personal bests in one day at Cubing Korea January 2012.
Competitions
- Korea Open 2026 · 15 Aug 2026
- Hamoye Jinju 2026 · 16 May 2026
- Ansan Favorites 2026 · 7 Feb 2026
- We Laugh Pohanghang 2025 · 14 Sep 2025
- Korean Championship 2024 · 15 Aug 2024 — 1 personal best set
- Daegu Cold Winter 2024 · 3 Feb 2024 — 1 personal best set
- Rubik's WCA World Championship 2023 · 12 Aug 2023
- Please Big Cubes Korea 2022 · 22 Oct 2022 — 2 personal bests set
- Korean Championship 2022 · 12 Aug 2022 — 4 personal bests set
- Seoul Summer 2022 · 23 Jul 2022
- Korean Championship 2019 · 16 Aug 2019 — 1 personal best set
- Cubing Operating System Summer 2019 · 8 Jun 2019 — 1 personal best set
- Play Cube X4 2019 · 11 May 2019 — 2 personal bests set
- Korea Winter 2019 · 19 Jan 2019 — 3 personal bests set
- Play Cube 2018 · 13 May 2018
- Korean Christmas Cup 2014 · 20 Dec 2014 — 2 personal bests set
- Magics Korea 2012 · 22 Dec 2012 — 3 personal bests set
- Cubing Korea January 2012 · 15 Jan 2012 — 3 personal bests set
- Cubing Korea Xmas Eve 2011 · 24 Dec 2011
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.
- Choi Goho (최고호) — met in 69 rounds, finished ahead 31 times
- DongSoo Park (박동수) — met in 61 rounds, finished ahead 3 times
- Ko Youngjin (고영진) — met in 57 rounds, finished ahead 14 times
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.01 away.
- A sub-30 4×4 single — 2,388 people have one; it is 6.23 away.
Targets move as he improves.