People · Republic of Korea
JeongYun Sim (심정윤)
3×3 · top 8.9% of 284,439 all-time · competing since February 2024 · 2024SIMJ01
JeongYun Sim (심정윤) has been competing for 3 years. His best event is the 3×3: a personal-best single of 10.48, set at Daejeon Spring 2025, puts him in the top 8.9% of the 284,439 people who have ever been ranked in the event, and 507th in Republic of Korea. Until August 2006, no official 3×3 solve in the world had been that fast. Across 2 competitions since February 2024, he has put 34 official solves on the record across four events. His 3×3 best has come down from 16.21 in February 2024 to 10.48, a 35% improvement. JeongYun has entered two competitions.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Republic of Korea | |
|---|---|---|---|---|---|
| 3×3 | 10.48 | 13.31 | top 8.9% | 507 / 4,352 | |
| 4×4 | 1:03.54 | 1:10.86 | top 40.2% | 684 / 1,308 | |
| 2×2 | 5.18 | 6.22 | top 41.6% | 1,209 / 2,319 | |
| 5×5 | 3:47.71 | 4:33.38 | top 89.8% | 658 / 716 |
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
- 25 May 2025First sub-15 3×3: 10.48 at Daejeon Spring 2025.
- 3 Feb 2024First competition: Daegu Cold Winter 2024. A 16.21 3×3 single to start from.
Competitions
- Daejeon Spring 2025 · 25 May 2025 — 2 personal bests set
- Daegu Cold Winter 2024 · 3 Feb 2024
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.
- EunChan Jung (정은찬) — met in 7 rounds, finished ahead 3 times
- Yunsoo Kim (김윤수) — met in 7 rounds, finished ahead twice
- Gyutae Park (박규태) — met in 7 rounds, finished ahead twice
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 0.48 away.
- A sub-1:00 4×4 single — 30,601 people have one; it is 3.54 away.
Targets move as he improves.