People · Republic of Korea
Jaeryung Lim (임재령)
3×3 · top 2.1% of 288,433 all-time · competing since March 2023 · 2023LIMJ02
Jaeryung Lim (임재령) has been competing for 4 years. His best event is the 3×3: a personal-best single of 7.57, set at Ansan Summer 2024, puts him in the top 2.1% of the 288,433 people who have ever been ranked in the event, and 123rd in Republic of Korea. Until July 2008, no official 3×3 solve in the world had been that fast. Across 11 competitions since March 2023, he has put 173 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 14% around a typical one; 75% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 10.55 in December 2023 to 7.57, a 28% improvement. Jaeryung has entered eleven competitions, more competitions than 93% 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 | 7.57 | 10.44 | top 2.1% | 123 / 4,390 | |
| 2×2 | 1.55 | 2.90 | top 2.4% | 72 / 2,334 | |
| Pyraminx | 4.70 | 6.83 | top 11.4% | 184 / 1,294 | |
| Square-1 | 14.42 | 18.69 | top 15.2% | 62 / 383 | |
| Clock | 8.73 | 9.74 | top 18.5% | 130 / 541 | |
| 3×3 one-handed | 19.32 | 23.00 | top 18.8% | 266 / 981 | |
| 4×4 | 57.43 | 1:04.65 | top 33.7% | 592 / 1,316 | |
| 3×3 blindfolded | 2:02.31 | — | early days — 2 solves | 87 / 222 | |
| Skewb | 8.88 | 13.02 | top 47.7% | 476 / 874 |
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
- 3 Jul 2025Three personal bests in one day at Rubik's WCA World Championship 2025.
- 24 Feb 2024Four personal bests in one day at Twist & Fries Johor Bahru 2024.
- 6 Jan 2024First sub-10 3×3: 9.76 at Seoul Open 2024.
- 26 Mar 2023First competition: Ansan Spring 2023.
Competitions
- Ansan Autumn 2026 · 19 Sep 2026 — 1 personal best set
- Rubik's WCA World Championship 2025 · 3 Jul 2025 — 3 personal bests set
- Osan Summer 2025 · 29 Jun 2025
- Korea Newcomers PM 2025 · 8 Mar 2025
- Brown Fall Seongnam 2024 · 21 Sep 2024
- Ansan Summer 2024 · 20 Jul 2024 — 1 personal best set
- Prime Cubing Day Seoul 2024 · 15 Jun 2024
- Twist & Fries Johor Bahru 2024 · 24 Feb 2024 — 4 personal bests set
- Seoul Open 2024 · 6 Jan 2024 — 2 personal bests set
- Korean Championship 2023 · 15 Dec 2023 — 1 personal best set
- Ansan Spring 2023 · 26 Mar 2023
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 26 rounds, finished ahead once
- Ko Youngjin (고영진) — met in 24 rounds, finished ahead 6 times
- Choi Goho (최고호) — met in 23 rounds, finished ahead 15 times
Next targets
- A sub-6 3×3 single — 1,419 people have one; it is 1.57 away.
- A sub-1 2×2 single — 1,050 people have one; it is 0.55 away.
Targets move as he improves.