People · Netherlands
Kasper Koster
Skewb · top 3.5% of 73,281 all-time · competing since October 2016 · 2016KOST03
Kasper Koster has been competing for 10 years. His best event is the Skewb: a personal-best single of 2.67, set at Dutch Nationals 2019, puts him in the top 3.5% of the 73,281 people who have ever been ranked in the event, and 34th in the Netherlands. Until February 2014, no official Skewb solve in the world had been that fast. Across 26 competitions since October 2016, he has put 772 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 67% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 31.38 in October 2016 to 9.57, a 70% improvement. Kasper has entered 26 competitions, more competitions than 98% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Netherlands | |
|---|---|---|---|---|---|
| Skewb | 2.67 | 4.92 | top 3.5% | 34 / 957 | |
| 3×3 | 9.57 | 11.92 | top 6.3% | 172 / 2,294 | |
| 2×2 | 2.49 | 3.69 | top 8.8% | 187 / 1,665 | |
| 4×4 | 40.92 | 49.40 | top 13.2% | 124 / 1,000 | |
| Pyraminx | 5.55 | 9.92 | top 16.8% | 291 / 1,283 | |
| 5×5 | 1:21.55 | 1:40.55 | top 20.3% | 105 / 532 | |
| 3×3 one-handed | 26.17 | 37.43 | top 37.3% | 248 / 726 | |
| Megaminx | 1:54.16 | — | top 42.7% | 183 / 414 | |
| 7×7 | 5:10.24 | — | early days — 1 solve | 101 / 169 | |
| 6×6 | 3:51.27 | — | early days — 3 solves | 146 / 205 | |
| 3×3 blindfolded | 4:20.99 | — | early days — 1 solve | 94 / 132 |
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
- 21 Sep 2019Five personal bests in one day at Dutch Nationals 2019.
- 10 Nov 2018First sub-10 3×3: 9.70 at Meppel Open 2018.
- 22 Sep 2018Three personal bests in one day at Dutch Nationals 2018.
- 28 Apr 2018Three personal bests in one day at Zonhoven Open 2018.
- 16 Dec 2017Three personal bests in one day at Marathon Open 2017.
- 21 Oct 2017First sub-15 3×3: 14.38 at Dutch Open 2017.
Competitions
- Westfries Open 2022 · 22 Oct 2022 — 1 personal best set
- Dutch Autumn 2022 · 25 Sep 2022 — 1 personal best set
- Dutch Masters 2020 · 1 Feb 2020 — 2 personal bests set
- Happy New Year Cubing Hoorn 2020 · 4 Jan 2020 — 1 personal best set
- Dutch Nationals 2019 · 21 Sep 2019 — 5 personal bests set
- Hoogland Open 2019 · 16 Aug 2019 — 1 personal best set
- Star Cubing Nijmegen 2019 · 29 Jun 2019
- Dutch Masters 2019 · 6 Apr 2019
- Haarlem Cubing 2019 · 10 Feb 2019 — 2 personal bests set
- Happy New Year Cubing Nijmegen 2019 · 5 Jan 2019
- Rijswijk Open 2018 · 15 Dec 2018
- Meppel Open 2018 · 10 Nov 2018 — 2 personal bests set
- Dutch Open 2018 · 13 Oct 2018 — 1 personal best set
- Dutch Nationals 2018 · 22 Sep 2018 — 3 personal bests set
- Veenendaal Open 2018 · 23 Jun 2018 — 1 personal best set
- Breda Open 2018 · 19 May 2018 — 2 personal bests set
- Zonhoven Open 2018 · 28 Apr 2018 — 3 personal bests set
- Assen Open 2018 · 3 Mar 2018
- Happy New Year Cubing Dordrecht 2018 · 5 Jan 2018 — 2 personal bests set
- Marathon Open 2017 · 16 Dec 2017 — 3 personal bests set
- Dutch Open 2017 · 21 Oct 2017 — 2 personal bests set
- Dutch Nationals 2017 · 23 Sep 2017 — 2 personal bests set
- Hoogland Open 2017 · 13 May 2017 — 2 personal bests set
- Zuidplas Open 2017 · 15 Apr 2017 — 3 personal bests set
- The Hague Open 2017 · 25 Mar 2017 — 1 personal best set
- Dutch Nationals 2016 · 1 Oct 2016
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.
- Olivier Vos — met in 167 rounds, finished ahead 23 times
- Daniël Kassab — met in 167 rounds, finished ahead 18 times
- Tijmen van der Ree — met in 160 rounds, finished ahead 22 times
Next targets
- A sub-2 Skewb single — 1,013 people have one; it is 0.67 away.
- A sub-8 3×3 single — 7,931 people have one; it is 1.57 away.
Targets move as he improves.