People · Romania
David Costan
2×2 · top 17.5% of 186,767 all-time · competing since October 2025 · 2025COST19
David Costan has been competing for 11 months. His best event is the 2×2: a personal-best single of 3.28, set at Marginea Cubing 2026, puts him in the top 17.5% of the 186,767 people who have ever been ranked in the event, and 197th in Romania. Across 2 competitions since October 2025, he has put 87 official solves on the record across ten events. His 3×3 best has come down from 19.62 in October 2025 to 17.10, a 13% improvement. David has entered two competitions.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Romania | |
|---|---|---|---|---|---|
| 2×2 | 3.28 | 5.78 | top 17.5% | 197 / 1,214 | |
| Pyraminx | 6.33 | 12.02 | top 22.5% | 174 / 825 | |
| 3×3 | 17.10 | 19.23 | top 31.3% | 391 / 1,574 | |
| 4×4 | 1:10.94 | 1:20.23 | top 47.8% | 200 / 578 | |
| 3×3 one-handed | 38.44 | 50.63 | top 63.0% | 222 / 411 | |
| Megaminx | 2:36.09 | 2:55.22 | top 64.1% | 117 / 243 | |
| Skewb | 12.68 | 20.19 | top 69.3% | 258 / 401 | |
| 5×5 | 2:40.99 | 2:46.13 | top 70.9% | 133 / 225 | |
| Clock | 26.11 | 52.52 | top 78.7% | 134 / 187 | |
| 6×6 | 7:48.85 | 8:15.60 | early days — 3 solves | 115 / 128 |
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 2026Six personal bests in one day at Marginea Cubing 2026.
- 4 Oct 2025First competition: Marginea Cubing 2025. A 19.62 3×3 single to start from.
Competitions
- Marginea Cubing 2026 · 1 Aug 2026 — 6 personal bests set
- Marginea Cubing 2025 · 4 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.
- Lungu Alin Mihai — met in 18 rounds, finished ahead 14 times
- Ștefan Balan — met in 18 rounds, finished ahead once
- Lungu Ciliac Horatiu Casian — met in 18 rounds, finished ahead once
Next targets
- A sub-3 2×2 single — 26,570 people have one; it is 0.28 away.
- A sub-6 Pyraminx single — 25,870 people have one; it is 0.33 away.
Targets move as he improves.