People · United States
Leon Kim
3×3 · top 3.7% of 284,439 all-time · competing since April 2024 · 2024KIML03
Leon Kim has been competing for 2 years. His best event is the 3×3: a personal-best single of 8.46, set at Derwood Cubing Derby Spring 2026, puts him in the top 3.7% of the 284,439 people who have ever been ranked in the event, and 2,068th in the United States. Until July 2008, no official 3×3 solve in the world had been that fast. Across 9 competitions since April 2024, he has put 187 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 15% around a typical one; 84% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 19.19 in April 2024 to 8.46, a 56% improvement. Leon has entered nine competitions, more competitions than 91% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | United States | |
|---|---|---|---|---|---|
| 3×3 | 8.46 | 10.63 | top 3.7% | 2,068 / 59,724 | |
| 2×2 | 2.96 | 4.09 | top 13.8% | 5,409 / 40,951 | |
| 4×4 | 46.52 | 51.88 | top 20.2% | 3,068 / 19,072 | |
| Pyraminx | 6.17 | 9.81 | top 21.3% | 5,716 / 28,708 | |
| 3×3 one-handed | 22.44 | 29.57 | top 27.2% | 3,518 / 15,683 | |
| Clock | 13.85 | 19.35 | top 43.2% | 3,474 / 8,927 | |
| Square-1 | 31.25 | — | top 51.7% | 3,391 / 6,743 |
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 May 2026Four personal bests in one day at Derwood Cubing Derby Spring 2026.
- 2 Aug 2025First sub-10 3×3: 9.70 at More Cubing with the Cougars WV 2025.
- 2 Aug 2025Three personal bests in one day at More Cubing with the Cougars WV 2025.
- 7 Dec 2024First sub-15 3×3: 12.75 at River Hill Fall 2024.
- 13 Apr 2024First competition: Slow N Steady Spring 2024. A 19.19 3×3 single to start from.
Competitions
- Korea Open 2026 · 15 Aug 2026
- Seoul Summer 2026 · 19 Jul 2026 — 1 personal best set
- Derwood Cubing Derby Spring 2026 · 9 May 2026 — 4 personal bests set
- Slow N Steady UMD Fall 2025 · 27 Sep 2025 — 1 personal best set
- More Cubing with the Cougars WV 2025 · 2 Aug 2025 — 3 personal bests set
- TJHSST Spring 2025 · 7 Jun 2025 — 2 personal bests set
- River Hill Fall 2024 · 7 Dec 2024 — 1 personal best set
- Gaithersburg Back to School 2024 · 14 Sep 2024 — 1 personal best set
- Slow N Steady Spring 2024 · 13 Apr 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.
- Brad Hoffman — met in 28 rounds, finished ahead 5 times
- Makai Guay — met in 26 rounds, finished ahead 3 times
- Daniel Greigg — met in 25 rounds, never finished ahead
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 0.46 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.96 away.
Targets move as he improves.