People · Republic of Korea
Ethan Jo (조이든)
2×2 · top 9.1% of 189,179 all-time · competing since January 2024 · 2024JOET01
Ethan Jo (조이든) has been competing for 3 years. His best event is the 2×2: a personal-best single of 2.51, set at Ansan Favorites 2026, puts him in the top 9.1% of the 189,179 people who have ever been ranked in the event, and 271st in Republic of Korea. Until February 2008, no official 2×2 solve in the world had been that fast. Across 8 competitions since January 2024, he has put 80 official solves on the record across five events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 7 counted rounds. His 3×3 best has come down from 19.71 in January 2024 to 14.55, a 26% improvement. Ethan has entered eight competitions, more competitions than 90% 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 | 2.51 | 4.45 | top 9.1% | 271 / 2,334 | |
| Clock | 8.46 | 9.60 | top 17.3% | 121 / 541 | |
| 3×3 | 14.55 | 18.12 | top 23.0% | 1,242 / 4,390 | |
| 4×4 | 1:28.89 | — | top 62.9% | 984 / 1,316 | |
| 3×3 one-handed | 56.60 | — | early days — 2 solves | 876 / 981 |
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
- 9 Mar 2024First sub-15 3×3: 14.55 at Anyang Haseyo 2024.
- 6 Jan 2024First competition: Seoul Open 2024. A 19.71 3×3 single to start from.
Competitions
- Ansan Favorites 2026 · 7 Feb 2026 — 2 personal bests set
- Korea Newcomers PM 2025 · 8 Mar 2025
- Seoul Winter 2024 · 14 Dec 2024
- Korean Championship 2024 · 15 Aug 2024 — 1 personal best set
- Prime Cubing Day Seoul 2024 · 15 Jun 2024 — 1 personal best set
- Anyang Haseyo 2024 · 9 Mar 2024 — 1 personal best set
- Daegu Cold Winter 2024 · 3 Feb 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.
- Yul-Hok Sung (성열학) — met in 16 rounds, finished ahead 15 times
- Minseo Gu (구민서) — met in 16 rounds, finished ahead once
- Keunsoo Heo (허근수) — met in 15 rounds, finished ahead 6 times
Next targets
- A sub-2 2×2 single — 9,039 people have one; it is 0.51 away.
- A sub-8 Clock single — 4,962 people have one; it is 0.46 away.
Targets move as he improves.