People · Bulgaria
Kristina Kostova
Skewb · top 2.0% of 73,281 all-time · competing since February 2018 · 2018KOST01
Kristina Kostova has been competing for 9 years. Her best event is the Skewb: a personal-best single of 2.23, set at We are Back Sofia 2022, puts her in the top 2.0% of the 73,281 people who have ever been ranked in the event, and 2nd in Bulgaria. Until February 2014, no official Skewb solve in the world had been that fast. Across 22 competitions since February 2018, she has put 705 official solves on the record across six events. Solve to solve, her 3×3 times vary about 11% around a typical one, steadier than 90% of the 35,811 competitors with ten or more counted rounds. Her 3×3 best has come down from 20.18 in February 2018 to 8.42, a 58% improvement. Kristina has entered 22 competitions, more competitions than 97% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Bulgaria | |
|---|---|---|---|---|---|
| Skewb | 2.23 | 3.87 | top 2.0% | 2 / 237 | |
| 3×3 | 8.42 | 10.65 | top 3.6% | 20 / 567 | |
| Pyraminx | 3.41 | 4.76 | top 5.1% | 14 / 332 | |
| 2×2 | 2.10 | 4.55 | top 5.4% | 19 / 407 | |
| Clock | 6.70 | 8.09 | top 9.9% | 5 / 78 | |
| 3×3 one-handed | 18.26 | 27.84 | top 15.8% | 22 / 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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 4 Mar 2023First sub-10 3×3: 9.89 at Bulgarian Aniversary 2023.
- 4 Mar 2023Three personal bests in one day at Bulgarian Aniversary 2023.
- 9 Jul 2022Four personal bests in one day at We are Back Sofia 2022.
- 2 Feb 2019Three personal bests in one day at Macedonia Winter 2019.
- 8 Sep 2018First sub-15 3×3: 14.47 at Sofia Autumn 2018.
- 12 May 2018First sub-20 3×3: 16.83 at Sofia Open 2018.
Competitions
- Sofia Summer 2026 · 6 Jun 2026
- Sofia Open 2026 · 3 Jan 2026 — 1 personal best set
- Sofia Spring 2025 · 10 May 2025
- Sofia Open 2025 · 29 Mar 2025 — 1 personal best set
- Bulgarian Nationals 2024 · 14 Dec 2024
- Side Events Bulgaria 2024 · 9 Nov 2024 — 1 personal best set
- Tarnovo End Of Summer 2024 · 21 Sep 2024 — 1 personal best set
- Burgas Summer 2024 · 17 Aug 2024 — 1 personal best set
- 50 Years of Cubing Bulgaria 2024 · 11 May 2024
- Sofia Spring 2024 · 16 Mar 2024 — 1 personal best set
- Lovech Winter 2024 · 20 Jan 2024
- Burgas Open 2023 · 5 Aug 2023
- Bulgarian Aniversary 2023 · 4 Mar 2023 — 3 personal bests set
- We are Back Sofia 2022 · 9 Jul 2022 — 4 personal bests set
- Lovech Winter 2019 · 1 Dec 2019
- Sofia Autumn 2019 · 31 Aug 2019
- Sofia Spring 2019 · 16 Mar 2019
- Macedonia Winter 2019 · 2 Feb 2019 — 3 personal bests set
- Macedonia Open 2018 · 17 Nov 2018 — 2 personal bests set
- Sofia Autumn 2018 · 8 Sep 2018 — 2 personal bests set
- Sofia Open 2018 · 12 May 2018 — 2 personal bests set
- Bulgarian Open 2018 · 10 Feb 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 her.
- Todor Enikov — met in 99 rounds, finished ahead 91 times
- Nikolai Petrov — met in 85 rounds, finished ahead 78 times
- Aleksandar Angelov — met in 77 rounds, finished ahead 75 times
Next targets
- A sub-2 Skewb single — 1,013 people have one; it is 0.23 away.
- A sub-8 3×3 single — 7,931 people have one; it is 0.42 away.
Targets move as she improves.