People · Sweden
Leon Mostamand
3×3 · top 8.0% of 284,439 all-time · competing since October 2025 · 2025MOST03
Leon Mostamand has been competing for 10 months. His best event is the 3×3: a personal-best single of 10.20, set at Stockholmsligan 5: Zoo - 2026, puts him in the top 8.0% of the 284,439 people who have ever been ranked in the event, and 228th in Sweden. Until May 2007, no official 3×3 solve in the world had been that fast. Across 14 competitions since October 2025, he has put 242 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 88% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.40 in October 2025 to 10.20, a 45% improvement. Leon has entered 14 competitions, more competitions than 95% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Sweden | |
|---|---|---|---|---|---|
| 3×3 | 10.20 | 12.00 | top 8.0% | 228 / 2,925 | |
| 2×2 | 2.94 | 4.03 | top 13.6% | 385 / 2,325 | |
| 3×3 one-handed | 19.17 | 22.66 | top 18.3% | 159 / 868 | |
| 4×4 | 48.09 | 52.12 | top 22.2% | 200 / 1,120 | |
| Megaminx | 1:31.84 | 1:52.60 | top 29.4% | 149 / 564 | |
| 5×5 | 1:36.96 | 1:43.60 | top 33.0% | 162 / 562 | |
| Pyraminx | 8.13 | 10.40 | top 37.3% | 745 / 1,730 | |
| Skewb | 9.28 | 11.78 | top 50.4% | 618 / 1,173 | |
| Square-1 | 33.31 | 35.39 | top 55.7% | 222 / 427 | |
| Clock | 17.08 | 19.44 | top 55.7% | 309 / 546 |
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
- 22 Jun 2026Three personal bests in one day at Uppsalaligan 6: Bead - 2026.
- 20 Nov 2025First sub-15 3×3: 14.84 at Stockholmsligan Tano - Mbuzi 2025.
- 25 Oct 2025First competition: Cuboss Open 2025. A 18.40 3×3 single to start from.
Competitions
- Stockholmsligan 2: Kex - 2026 · 27 Aug 2026 — 2 personal bests set
- Stockholmsligan 1: Nappar - 2026 · 6 Aug 2026 — 1 personal best set
- Stockholmsligan Final: Pop - 2026 · 23 Jul 2026 — 1 personal best set
- Stockholmsligan 7: Peber - 2026 · 7 Jul 2026 — 2 personal bests set
- Uppsalaligan 6: Bead - 2026 · 22 Jun 2026 — 3 personal bests set
- Stockholmsligan 6: Blandat - 2026 · 28 Apr 2026 — 1 personal best set
- Stockholmsligan 5: Zoo - 2026 · 14 Apr 2026 — 1 personal best set
- Stockholmsligan 4: Bilar - 2026 · 19 Mar 2026 — 2 personal bests set
- Stockholmsligan 3: Surskallar - 2026 · 17 Feb 2026
- Stockholmsligan 2: Djungelvrål - 2026 · 20 Jan 2026 — 2 personal bests set
- Stockholmsligan 1: Skids - 2026 · 6 Jan 2026
- Stockholmsligan Sita - Nyoka 2025 · 18 Dec 2025 — 1 personal best set
- Stockholmsligan Tano - Mbuzi 2025 · 20 Nov 2025 — 1 personal best set
- Cuboss Open 2025 · 25 Oct 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.
- Daniel Wallin — met in 52 rounds, finished ahead once
- Leon Granér — met in 48 rounds, finished ahead 9 times
- Filip Åström — met in 45 rounds, finished ahead 3 times
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 0.20 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.94 away.
Targets move as he improves.