People · Republic of Korea
Changhyun Song (송창현)
3×3 · top 11.7% of 288,433 all-time · competing since January 2024 · 2024SONG01
Changhyun Song (송창현) has been competing for 3 years. His best event is the 3×3: a personal-best single of 11.37, set at Korean Championship 2024, puts him in the top 11.7% of the 288,433 people who have ever been ranked in the event, and 666th in Republic of Korea. Across 3 competitions since January 2024, he has put 74 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 10% around a typical one, an early reading from 5 counted rounds. Changhyun has entered three competitions, more competitions than 69% 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 | |
|---|---|---|---|---|---|
| 3×3 | 11.37 | 11.64 | top 11.7% | 666 / 4,390 | |
| 4×4 | 40.72 | 50.98 | top 13.0% | 248 / 1,316 | |
| Pyraminx | 5.49 | 7.15 | top 16.4% | 261 / 1,294 | |
| 2×2 | 3.20 | 4.30 | top 16.7% | 511 / 2,334 | |
| Clock | 9.79 | 10.76 | top 23.9% | 161 / 541 | |
| Skewb | 6.68 | 8.05 | top 31.2% | 322 / 874 | |
| 5×5 | 1:37.61 | 1:53.11 | top 33.6% | 298 / 725 | |
| Megaminx | 1:42.11 | 1:54.70 | top 35.9% | 235 / 526 |
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
- 6 Jan 2024First competition: Seoul Open 2024. A 11.95 3×3 single to start from.
Competitions
- Suwon Summer 2025 · 13 Jul 2025 — 2 personal bests set
- Korean Championship 2024 · 15 Aug 2024 — 1 personal best set
- Seoul Open 2024 · 6 Jan 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.
- Woobin Hwang (황우빈) — met in 15 rounds, finished ahead twice
- Minseo Gu (구민서) — met in 15 rounds, finished ahead once
- Oh Chang-Min (오창민) — met in 14 rounds, finished ahead 7 times
Next targets
- A sub-10 3×3 single — 21,606 people have one; it is 1.37 away.
- A sub-40 4×4 single — 10,370 people have one; it is 0.72 away.
Targets move as he improves.