People · Republic of Korea
Seobin Lee (이서빈)
Pyraminx · top 2.1% of 130,891 all-time · competing since April 2023 · 2023LEES07
Seobin Lee (이서빈) has been competing for 4 years. His best event is the Pyraminx: a personal-best single of 2.44, set at Please Minx Korea 2025, puts him in the top 2.1% of the 130,891 people who have ever been ranked in the event, and 38th in Republic of Korea. Until January 2011, no official Pyraminx solve in the world had been that fast. Across 17 competitions since April 2023, he has put 280 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 15% around a typical one; 79% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 18.35 in April 2023 to 11.04, a 40% improvement. Seobin has entered 17 competitions, more competitions than 96% 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 | |
|---|---|---|---|---|---|
| Pyraminx | 2.44 | 6.24 | top 2.1% | 38 / 1,294 | |
| 2×2 | 2.17 | 3.83 | top 6.0% | 170 / 2,334 | |
| 3×3 | 11.04 | 12.77 | top 10.7% | 612 / 4,390 | |
| 4×4 | 56.15 | 1:03.67 | top 32.2% | 563 / 1,316 | |
| 3×3 one-handed | 24.58 | 41.84 | top 33.2% | 431 / 981 | |
| Skewb | 8.02 | 11.18 | top 41.5% | 418 / 874 | |
| 5×5 | 2:06.28 | 2:23.10 | top 53.3% | 447 / 725 | |
| Clock | 18.17 | 19.25 | top 59.3% | 388 / 541 | |
| Megaminx | 2:31.31 | 2:56.23 | top 61.8% | 365 / 526 |
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 2025Three personal bests in one day at Osan Summer 2025.
- 15 Jun 2024Three personal bests in one day at Prime Cubing Day Seoul 2024.
- 6 Apr 2024Three personal bests in one day at Busan Spring 2024.
- 29 Oct 2023First sub-15 3×3: 13.03 at Suncheon Fall 2023.
- 15 Apr 2023First competition: Daegu Hot Spring 2023. A 18.35 3×3 single to start from.
Competitions
- Ansan Autumn 2026 · 19 Sep 2026 — 1 personal best set
- Seoul Spring 2026 · 22 Mar 2026 — 1 personal best set
- Osan Summer 2025 · 29 Jun 2025 — 3 personal bests set
- Daejeon Spring 2025 · 25 May 2025 — 1 personal best set
- Please Minx Korea 2025 · 5 Apr 2025 — 1 personal best set
- Korea Newcomers AM 2025 · 8 Mar 2025
- Happy Suseong 2025 · 18 Jan 2025 — 2 personal bests set
- Hamchang Winter 2024 · 23 Nov 2024 — 2 personal bests set
- Daegu Autumn 2024 · 26 Oct 2024
- Prime Cubing Day Seoul 2024 · 15 Jun 2024 — 3 personal bests set
- Busan Spring 2024 · 6 Apr 2024 — 3 personal bests set
- Seoul Open 2024 · 6 Jan 2024
- Hamchang Open 2023 · 18 Nov 2023
- Suncheon Fall 2023 · 29 Oct 2023 — 2 personal bests set
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 2 personal bests set
- Seoul Spring 2023 · 7 May 2023 — 1 personal best set
- Daegu Hot Spring 2023 · 15 Apr 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.
- Ko Youngjin (고영진) — met in 58 rounds, finished ahead 4 times
- Choi Goho (최고호) — met in 55 rounds, finished ahead 14 times
- DongSoo Park (박동수) — met in 49 rounds, never finished ahead
Next targets
- A sub-2 Pyraminx single — 1,497 people have one; it is 0.44 away.
- A sub-2 2×2 single — 9,039 people have one; it is 0.17 away.
Targets move as he improves.