People · Finland
Tatu Sidoroff
Pyraminx · top 4.2% of 130,891 all-time · competing since May 2023 · 2023SIDO01
Tatu Sidoroff has been competing for 3 years. His best event is the Pyraminx: a personal-best single of 3.17, set at Pulmapelipäivät 2024, puts him in the top 4.2% of the 130,891 people who have ever been ranked in the event, and 45th in Finland. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 6 competitions since May 2023, he has put 269 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 13% around a typical one; 53% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His Pyraminx best has come down from 8.35 in May 2023 to 3.17, a 62% improvement. Tatu has entered six competitions, more competitions than 86% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Finland | |
|---|---|---|---|---|---|
| Pyraminx | 3.17 | 6.63 | top 4.2% | 45 / 558 | |
| 2×2 | 2.72 | 3.40 | top 11.2% | 144 / 683 | |
| 3×3 | 11.60 | 14.81 | top 12.6% | 167 / 886 | |
| Skewb | 4.34 | 6.51 | top 13.3% | 88 / 411 | |
| Square-1 | 15.12 | 27.22 | top 16.8% | 41 / 160 | |
| 4×4 | 1:54.60 | — | early days — 2 solves | 333 / 397 | |
| Clock | 37.53 | — | early days — 1 solve | 189 / 198 |
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, Pyraminx. Faster is higher — the axis is the right way up.
The story so far
- 5 Jun 2026Three personal bests in one day at Pulmapelipäivät 2026.
- 3 Apr 2026First sub-15 3×3: 14.64 at Kirkkonummen Kuutionvääntelyt 2026.
- 3 Apr 2026Three personal bests in one day at Kirkkonummen Kuutionvääntelyt 2026.
- 6 Jun 2025First sub-20 3×3: 16.66 at Pulmapelipäivät 2025.
- 6 Jun 2025Four personal bests in one day at Pulmapelipäivät 2025.
- 7 Jun 2024Three personal bests in one day at Pulmapelipäivät 2024.
Competitions
- Pulmapelipäivät 2026 · 5 Jun 2026 — 3 personal bests set
- Kirkkonummen Kuutionvääntelyt 2026 · 3 Apr 2026 — 3 personal bests set
- Pulmapelipäivät 2025 · 6 Jun 2025 — 4 personal bests set
- Pulmapelipäivät 2024 · 7 Jun 2024 — 3 personal bests set
- Lahen Cubefest 2024 · 20 Apr 2024 — 5 personal bests set
- Tampere 2023 · 21 May 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.
- Niko Ronkainen — met in 57 rounds, finished ahead twice
- Ernesti Jokela — met in 48 rounds, finished ahead 14 times
- Leo Alanen — met in 47 rounds, never finished ahead
Next targets
- A sub-3 Pyraminx single — 4,783 people have one; it is 0.17 away.
- A sub-2 2×2 single — 9,039 people have one; it is 0.72 away.
Targets move as he improves.