People · Republic of Korea
Cho EunByul (조은별)
3×3 · top 36.8% of 284,439 all-time · competing since July 2024 · 2024EUNB02
Cho EunByul (조은별) has been competing for 2 years. Her best event is the 3×3: a personal-best single of 18.89, set at Osan Summer 2025, puts her in the top 36.8% of the 284,439 people who have ever been ranked in the event, and 1,915th in Republic of Korea. Across 4 competitions since July 2024, she has put 25 official solves on the record across three events. Her 3×3 best has come down from 31.20 in July 2024 to 18.89, a 39% improvement. Cho has entered four competitions, more competitions than 78% 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 | 18.89 | 25.98 | top 36.8% | 1,915 / 4,352 | |
| 2×2 | 8.15 | 10.60 | top 68.8% | 1,790 / 2,319 | |
| 4×4 | 1:44.34 | — | early days — 1 solve | 1,086 / 1,308 |
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
- 29 Jun 2025First sub-20 3×3: 18.89 at Osan Summer 2025.
- 18 Jan 2025First sub-30 3×3: 28.32 at Happy Suseong 2025.
- 20 Jul 2024First competition: Ansan Summer 2024. A 31.20 3×3 single to start from.
Competitions
- Osan Summer 2025 · 29 Jun 2025 — 1 personal best set
- Korea Newcomers PM 2025 · 8 Mar 2025
- Happy Suseong 2025 · 18 Jan 2025 — 1 personal best set
- Ansan Summer 2024 · 20 Jul 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 her.
- Minseo Gu (구민서) — met in 6 rounds, never finished ahead
- Kyumin Shim (심규민) — met in 6 rounds, never finished ahead
- JeYoon Jung (정제윤) — met in 6 rounds, never finished ahead
Next targets
- A sub-15 3×3 single — 69,493 people have one; it is 3.89 away.
- A sub-8 2×2 single — 126,624 people have one; it is 0.15 away.
Targets move as she improves.