People · Republic of Korea
Jeon Si Hyeon (전시현)
2×2 · top 0.72% of 186,767 all-time · competing since October 2023 · 2023HYEO03
Jeon Si Hyeon (전시현) has been competing for 3 years. His best event is the 2×2: a personal-best single of 1.08, set at Korea Open 2025, puts him in the top 0.72% of the 186,767 people who have ever been ranked in the event, and 17th in Republic of Korea. Until November 2008, no official 2×2 solve in the world had been that fast. Across 17 competitions since October 2023, he has put 436 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 15% around a typical one; 83% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 20.32 in October 2023 to 7.45, a 63% improvement. Jeon has entered 17 competitions, more competitions than 96% 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 | 1.08 | 2.20 | top 0.72% | 17 / 2,319 | |
| 3×3 | 7.45 | 11.22 | top 1.9% | 114 / 4,352 | |
| 4×4 | 39.84 | 46.93 | top 12.0% | 234 / 1,308 | |
| 3×3 one-handed | 19.09 | 26.35 | top 18.0% | 255 / 966 | |
| Pyraminx | 6.01 | 9.17 | top 20.1% | 320 / 1,271 | |
| Skewb | 6.25 | 7.98 | top 27.7% | 275 / 854 | |
| 5×5 | 1:39.65 | 2:00.56 | top 35.1% | 305 / 716 | |
| Megaminx | 1:43.10 | 1:58.83 | top 36.5% | 242 / 524 | |
| 3×3 Fewest Moves | 43 moves | 45.00 | early days — 3 solves | 117 / 173 | |
| 6×6 | 6:58.29 | — | early days — 1 solve | 323 / 329 |
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
- 15 Aug 2025Three personal bests in one day at Korea Open 2025.
- 25 May 2025First sub-10 3×3: 9.75 at Daejeon Spring 2025.
- 18 Jan 2025Three personal bests in one day at Happy Suseong 2025.
- 15 Aug 2024Six personal bests in one day at Korean Championship 2024.
- 6 Apr 2024Four personal bests in one day at Busan Spring 2024.
- 3 Feb 2024First sub-15 3×3: 14.04 at Daegu Cold Winter 2024.
Competitions
- Korea Open 2026 · 15 Aug 2026 — 2 personal bests set
- Uhseo Osong 2026 · 13 Jun 2026
- Hamoye Jinju 2026 · 16 May 2026 — 1 personal best set
- Anyang Haseyo 2026 · 26 Apr 2026
- Seoul Winter 2026 · 17 Jan 2026 — 1 personal best set
- Uhseo Osong 2025 · 15 Nov 2025
- We Laugh Pohanghang 2025 · 14 Sep 2025 — 1 personal best set
- Korea Open 2025 · 15 Aug 2025 — 3 personal bests set
- Daejeon Spring 2025 · 25 May 2025 — 2 personal bests set
- FMC Busan 2025 · 2 Mar 2025
- Happy Suseong 2025 · 18 Jan 2025 — 3 personal bests set
- Daegu Autumn 2024 · 26 Oct 2024 — 2 personal bests set
- Korean Championship 2024 · 15 Aug 2024 — 6 personal bests set
- Busan Spring 2024 · 6 Apr 2024 — 4 personal bests set
- Daegu Cold Winter 2024 · 3 Feb 2024 — 2 personal bests set
- Korean Championship 2023 · 15 Dec 2023 — 1 personal best set
- Suncheon Fall 2023 · 29 Oct 2023 — 1 personal best set
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.
- Ko Youngjin (고영진) — met in 87 rounds, finished ahead 19 times
- Choi Goho (최고호) — met in 85 rounds, finished ahead 33 times
- DongSoo Park (박동수) — met in 85 rounds, finished ahead 9 times
Next targets
- A sub-1 2×2 single — 1,032 people have one; it is 0.08 away.
- A sub-6 3×3 single — 1,376 people have one; it is 1.45 away.
Targets move as he improves.