People · Ukraine
Serhii Davydenko (Сергій Давиденко)
3×3 · top 2.8% of 284,439 all-time · competing since April 2023 · 2023DAVY02
Serhii Davydenko (Сергій Давиденко) has been competing for 3 years. His best event is the 3×3: a personal-best single of 7.99, set at Vinnytsia Open 2026, puts him in the top 2.8% of the 284,439 people who have ever been ranked in the event, and 87th in Ukraine. Until July 2008, no official 3×3 solve in the world had been that fast. Across 2 competitions since April 2023, he has put 64 official solves on the record across six events. Solve to solve, his 3×3 times vary about 7% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 9.52 in April 2023 to 7.99, a 16% improvement. Serhii has entered two competitions.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Ukraine | |
|---|---|---|---|---|---|
| 3×3 | 7.99 | 9.14 | top 2.8% | 87 / 2,868 | |
| 3×3 one-handed | 16.84 | 19.87 | top 12.2% | 110 / 755 | |
| 4×4 | 48.84 | 54.65 | top 23.2% | 202 / 867 | |
| 2×2 | 3.75 | 5.27 | top 23.3% | 435 / 1,894 | |
| Pyraminx | 9.91 | 21.51 | top 52.3% | 826 / 1,471 | |
| Megaminx | 3:11.75 | — | early days — 1 solve | 324 / 424 |
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
- 1 Aug 2026Three personal bests in one day at Vinnytsia Open 2026.
- 1 Apr 2023First competition: Ternopil Science Cubing 2023. A 9.52 3×3 single to start from.
Competitions
- Vinnytsia Open 2026 · 1 Aug 2026 — 3 personal bests set
- Ternopil Science Cubing 2023 · 1 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.
- Yelysei Hovorun (Єлисей Говорун) — met in 14 rounds, finished ahead 5 times
- Lev Golub (Лев Голуб) — met in 14 rounds, never finished ahead
- Vladyslav Hryniuk (Владислав Гринюк) — met in 14 rounds, never finished ahead
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 1.99 away.
- A sub-15 3×3 one-handed single — 5,987 people have one; it is 1.84 away.
Targets move as he improves.