People · Republic of Korea
JaeWoo Jang
2×2 · top 3.1% of 186,767 all-time · competing since August 2019 · 2019JANG05
JaeWoo Jang has been competing for 7 years. His best event is the 2×2: a personal-best single of 1.71, set at Shimonoseki 2025, puts him in the top 3.1% of the 186,767 people who have ever been ranked in the event, and 89th in Republic of Korea. Until February 2008, no official 2×2 solve in the world had been that fast. Across 7 competitions since August 2019, he has put 77 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 14% around a typical one, an early reading from 6 counted rounds. His 3×3 best has come down from 19.41 in August 2019 to 13.16, a 32% improvement. JaeWoo has entered seven competitions, more competitions than 88% 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 | 1.71 | 5.18 | top 3.1% | 89 / 2,319 | |
| Pyraminx | 4.44 | 6.09 | top 9.9% | 156 / 1,271 | |
| 3×3 | 13.16 | 17.08 | top 18.0% | 1,005 / 4,352 | |
| Square-1 | 22.68 | 35.86 | top 34.0% | 152 / 371 | |
| Skewb | 7.40 | 8.43 | top 36.7% | 378 / 854 | |
| 4×4 | 1:11.58 | 1:13.81 | top 48.4% | 801 / 1,308 | |
| 3×3 one-handed | 47.53 | — | early days — 2 solves | 807 / 966 |
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
- 12 Aug 2023First sub-15 3×3: 14.93 at Rubik's WCA World Championship 2023.
- 16 Aug 2019First competition: Korean Championship 2019. A 19.41 3×3 single to start from.
Competitions
- Shimonoseki 2025 · 28 Dec 2025 — 2 personal bests set
- Kanazawa 2024 · 25 May 2024
- Hiroshima Winter 2024 · 10 Feb 2024
- Otsu Biwako Autumn 2023 · 23 Sep 2023
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 2 personal bests set
- Hiroshima Spring 2023 · 25 Mar 2023 — 1 personal best set
- Korean Championship 2019 · 16 Aug 2019 — 1 personal best set
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.
- Naoki Tani (谷直輝) — met in 9 rounds, finished ahead twice
- Takeru Iguchi (井口丈瑠) — met in 9 rounds, finished ahead twice
- Takuya Kira (吉良拓也) — met in 9 rounds, finished ahead once
Next targets
- A sub-1 2×2 single — 1,032 people have one; it is 0.71 away.
- A sub-4 Pyraminx single — 9,892 people have one; it is 0.44 away.
Targets move as he improves.