People · Bulgaria
Borislav Nikolov Kosturski
2×2 · top 37.4% of 186,767 all-time · competing since September 2018 · 2018KOST11
Borislav Nikolov Kosturski has been competing for 8 years. His best event is the 2×2: a personal-best single of 4.85, set at Sofia Spring 2019, puts him in the top 37.4% of the 186,767 people who have ever been ranked in the event, and 162nd in Bulgaria. Across 3 competitions since September 2018, he has put 69 official solves on the record across five events. His 2×2 best has come down from 13.69 in September 2018 to 4.85, a 65% improvement. Borislav has entered three competitions, more competitions than 69% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Bulgaria | |
|---|---|---|---|---|---|
| 2×2 | 4.85 | 10.50 | top 37.4% | 162 / 407 | |
| Pyraminx | 10.62 | 19.47 | top 57.7% | 182 / 332 | |
| 3×3 | 33.97 | 35.34 | top 69.0% | 403 / 567 | |
| Skewb | 18.77 | 22.41 | top 87.6% | 219 / 237 | |
| 3×3 one-handed | 1:11.80 | 1:38.22 | top 89.7% | 121 / 139 |
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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 16 Mar 2019Four personal bests in one day at Sofia Spring 2019.
- 8 Sep 2018First competition: Sofia Autumn 2018. A 52.89 3×3 single to start from.
Competitions
- Sofia Autumn 2019 · 31 Aug 2019 — 2 personal bests set
- Sofia Spring 2019 · 16 Mar 2019 — 4 personal bests set
- Sofia Autumn 2018 · 8 Sep 2018
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.
- Radostina Duleva — met in 15 rounds, finished ahead 4 times
- Plamen Mahladzhanov — met in 15 rounds, finished ahead twice
- Mihai Căpăţinescu — met in 15 rounds, never finished ahead
Next targets
- A sub-4 2×2 single — 49,452 people have one; it is 0.85 away.
- A sub-10 Pyraminx single — 68,530 people have one; it is 0.62 away.
Targets move as he improves.