People · Republic of Korea
Junseo Lee (이준서)
3×3 · top 26.1% of 284,439 all-time · competing since August 2025 · 2025LEEJ32
Junseo Lee (이준서) has been competing for a year. His best event is the 3×3: a personal-best single of 15.49, set at Seoul Spring 2026, puts him in the top 26.1% of the 284,439 people who have ever been ranked in the event, and 1,403rd in Republic of Korea. Across 4 competitions since August 2025, he has put 20 official solves on the record across one event. His 3×3 best has come down from 38.19 in August 2025 to 15.49, a 59% improvement. Junseo 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 | 15.49 | 18.35 | top 26.1% | 1,403 / 4,352 |
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
- 7 Feb 2026First sub-20 3×3: 18.73 at Ansan Favorites 2026.
- 15 Nov 2025First sub-30 3×3: 23.47 at Uhseo Osong 2025.
- 15 Aug 2025First competition: Korea Open 2025. A 38.19 3×3 single to start from.
Competitions
- Seoul Spring 2026 · 22 Mar 2026 — 1 personal best set
- Ansan Favorites 2026 · 7 Feb 2026 — 1 personal best set
- Uhseo Osong 2025 · 15 Nov 2025 — 1 personal best set
- Korea Open 2025 · 15 Aug 2025
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.
- Jaei Kim (김재이) — met in 4 rounds, finished ahead 4 times
- Hyunjo Kim (김현조) — met in 4 rounds, finished ahead 3 times
- Sangjin Na (나상진) — met in 4 rounds, finished ahead 3 times
Next targets
- A sub-15 3×3 single — 69,493 people have one; it is 0.49 away.
Targets move as he improves.