People · Republic of Korea
Si-hyeon Byeon (변시현)
3×3 · top 4.5% of 284,439 all-time · competing since October 2017 · 2017BYEO01
Si-hyeon Byeon (변시현) has been competing for 9 years. His best event is the 3×3: a personal-best single of 8.84, set at Korea Winter 2019, puts him in the top 4.5% of the 284,439 people who have ever been ranked in the event, and 271st in Republic of Korea. Until May 2008, no official 3×3 solve in the world had been that fast. Across 12 competitions since October 2017, he has put 201 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 20% around a typical one; 99% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 19.96 in October 2017 to 8.84, a 56% improvement. He has entered twelve competitions, more competitions than 94% 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 | 8.84 | 13.54 | top 4.5% | 271 / 4,352 | |
| Megaminx | 1:01.59 | 1:17.59 | top 10.8% | 71 / 524 | |
| 3×3 one-handed | 20.98 | 29.14 | top 23.2% | 315 / 966 | |
| 2×2 | 3.75 | 5.49 | top 23.3% | 698 / 2,319 | |
| 4×4 | 53.21 | 1:00.25 | top 28.6% | 510 / 1,308 | |
| 5×5 | 1:34.44 | 1:42.05 | top 31.0% | 272 / 716 | |
| 6×6 | 3:11.97 | 3:15.88 | top 46.7% | 187 / 329 | |
| Clock | 15.33 | 29.30 | top 49.2% | 333 / 536 | |
| Pyraminx | 9.94 | 12.55 | top 52.5% | 749 / 1,271 | |
| Skewb | 9.78 | 11.82 | top 53.5% | 510 / 854 | |
| 7×7 | 7:12.84 | 7:27.78 | early days — 3 solves | 236 / 254 |
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
- 16 Aug 2019Three personal bests in one day at Korean Championship 2019.
- 19 Jan 2019First sub-10 3×3: 8.84 at Korea Winter 2019.
- 19 Jan 2019Three personal bests in one day at Korea Winter 2019.
- 20 Jul 2018Three personal bests in one day at Korean Championship 2018.
- 13 May 2018First sub-15 3×3: 13.86 at Play Cube 2018.
- 28 Oct 2017First competition: CWR Fall 2017. A 19.96 3×3 single to start from.
Competitions
- Please Minx Korea 2025 · 5 Apr 2025 — 1 personal best set
- Daegu Autumn 2024 · 26 Oct 2024 — 2 personal bests set
- Seoul Summer 2022 · 23 Jul 2022 — 2 personal bests set
- ByeolLae Open 2020 · 1 Feb 2020
- Korean Championship 2019 · 16 Aug 2019 — 3 personal bests set
- Cubing Operating System Summer 2019 · 8 Jun 2019 — 1 personal best set
- Seoul Winter 2019 · 23 Feb 2019
- Korea Winter 2019 · 19 Jan 2019 — 3 personal bests set
- Korean Championship 2018 · 20 Jul 2018 — 3 personal bests set
- Play Cube 2018 · 13 May 2018 — 2 personal bests set
- CWR Winter 2018 · 24 Feb 2018 — 1 personal best set
- CWR Fall 2017 · 28 Oct 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 44 rounds, never finished ahead
- Choi Goho (최고호) — met in 42 rounds, finished ahead 6 times
- Ko Youngjin (고영진) — met in 39 rounds, finished ahead twice
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 0.84 away.
- A sub-1:00 Megaminx single — 3,483 people have one; it is 1.59 away.
Targets move as he improves.