People · Ukraine
Kostiantyn Koptiev (Костянтин Коптєв)
Pyraminx · top 2.5% of 129,321 all-time · competing since August 2014 · 2014KOPT01
Kostiantyn Koptiev (Костянтин Коптєв) has been competing for 12 years. His best event is the Pyraminx: a personal-best single of 2.60, set at Beit Dan Open 2015, puts him in the top 2.5% of the 129,321 people who have ever been ranked in the event, and 41st in Ukraine. Until January 2011, no official Pyraminx solve in the world had been that fast. Across 21 competitions since August 2014, he has put 642 official solves on the record across six events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 60% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 31.01 in August 2014 to 12.12, a 61% improvement. Kostiantyn has entered 21 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 | Ukraine | |
|---|---|---|---|---|---|
| Pyraminx | 2.60 | 3.65 | top 2.5% | 41 / 1,471 | |
| 2×2 | 2.26 | 5.47 | top 6.7% | 129 / 1,894 | |
| 3×3 | 12.12 | 14.69 | top 14.3% | 378 / 2,868 | |
| 3×3 one-handed | 18.75 | 25.21 | top 17.1% | 148 / 755 | |
| Skewb | 5.45 | 8.10 | top 21.6% | 186 / 884 | |
| 4×4 | 1:58.71 | — | early days — 2 solves | 680 / 867 |
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
- 19 Mar 2016Five personal bests in one day at Dnepr Cube Days 2016.
- 16 Aug 2015First sub-15 3×3: 13.94 at Kharkiv Cube Day 2015.
- 16 Aug 2015Three personal bests in one day at Kharkiv Cube Day 2015.
- 13 Jun 2015Three personal bests in one day at Cowboys Summer 2015.
- 13 Dec 2014First sub-30 3×3: 21.97 at Kharkiv Winter 2014.
- 13 Dec 2014First sub-20 3×3: 18.05 at Kharkiv Winter 2014.
Competitions
- Kharkiv Open 2019 · 17 Aug 2019
- Kharkiv Open 2018 · 11 Aug 2018 — 1 personal best set
- White City Cubing 2018 · 7 Jul 2018
- Dnepr Never Fails 2018 · 23 Feb 2018 — 1 personal best set
- Kharkiv Winter 2017 · 23 Dec 2017 — 1 personal best set
- Dnepr Skips 2017 · 14 Oct 2017
- Belgorod Open 2017 · 7 Oct 2017
- Kharkiv Cube Day 2017 · 1 Oct 2017 — 1 personal best set
- Fresh Cube 2017 · 13 May 2017
- White City Cubing 2017 · 22 Apr 2017 — 2 personal bests set
- Ukrainian Nationals 2016 · 16 Sep 2016 — 2 personal bests set
- Kharkiv Cube Day 2016 · 27 Aug 2016
- Cowboys Summer 2016 · 2 Jul 2016
- Dnepr Cube Days 2016 · 19 Mar 2016 — 5 personal bests set
- Kharkiv Special 2016 · 13 Mar 2016
- Beit Dan Open 2015 · 24 Oct 2015 — 1 personal best set
- Kharkiv Cube Day 2015 · 16 Aug 2015 — 3 personal bests set
- Cowboys Summer 2015 · 13 Jun 2015 — 3 personal bests set
- Kharkiv Special 2015 · 7 Mar 2015 — 1 personal best set
- Kharkiv Winter 2014 · 13 Dec 2014 — 2 personal bests set
- Kharkiv Cube Day 2014 · 30 Aug 2014
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.
- Lev Golub (Лев Голуб) — met in 126 rounds, finished ahead 24 times
- Serhii Mormul (Сергій Мормуль) — met in 98 rounds, finished ahead 41 times
- Daniel Yakhkind (Даніель Яхкінд) — met in 88 rounds, finished ahead 35 times
Next targets
- A sub-2 Pyraminx single — 1,476 people have one; it is 0.60 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.26 away.
Targets move as he improves.