People · Ukraine
Kostiantyn Tkachenko (Костянтин Ткаченко)
3×3 · top 25.4% of 284,439 all-time · competing since April 2012 · 2012TKAC01
Kostiantyn Tkachenko (Костянтин Ткаченко) has been competing for 14 years. His best event is the 3×3: a personal-best single of 15.28, set at Kharkiv Cube Day 2013, puts him in the top 25.4% of the 284,439 people who have ever been ranked in the event, and 656th in Ukraine. Across 3 competitions since April 2012, he has put 47 official solves on the record across three events. His 3×3 best has come down from 25.30 in April 2012 to 15.28, a 40% improvement. Kostiantyn 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 | Ukraine | |
|---|---|---|---|---|---|
| 3×3 | 15.28 | 20.03 | top 25.4% | 656 / 2,868 | |
| 2×2 | 4.50 | 8.86 | top 32.9% | 603 / 1,894 | |
| 3×3 one-handed | 44.43 | 58.36 | top 70.9% | 555 / 755 |
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
- 11 Aug 2013Three personal bests in one day at Kharkiv Cube Day 2013.
- 18 May 2013First sub-20 3×3: 19.52 at Ukrainian Open 2013.
- 18 May 2013Three personal bests in one day at Ukrainian Open 2013.
- 21 Apr 2012First competition: Ukraine Open 2012. A 25.30 3×3 single to start from.
Competitions
- Kharkiv Cube Day 2013 · 11 Aug 2013 — 3 personal bests set
- Ukrainian Open 2013 · 18 May 2013 — 3 personal bests set
- Ukraine Open 2012 · 21 Apr 2012
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.
- Denys Zhytnyk (Денис Житник) — met in 12 rounds, finished ahead 5 times
- Roman Ostapenko (Роман Остапенко) — met in 12 rounds, never finished ahead
- Sergey Ryabko — met in 12 rounds, never finished ahead
Next targets
- A sub-15 3×3 single — 69,493 people have one; it is 0.28 away.
- A sub-4 2×2 single — 49,452 people have one; it is 0.50 away.
Targets move as he improves.