People · Netherlands
Koen van Aller
3×3 · top 3.2% of 284,439 all-time · competing since September 2017 · 2017ALLE05
Koen van Aller has been competing for 9 years. His best event is the 3×3: a personal-best single of 8.24, set at Cubing in Oud IJsselmuiden 2025, puts him in the top 3.2% of the 284,439 people who have ever been ranked in the event, and 95th in the Netherlands. Until July 2008, no official 3×3 solve in the world had been that fast. Across 52 competitions since September 2017, he has put 1,905 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 10% around a typical one, steadier than 95% of the 35,811 competitors with ten or more counted rounds. His 2×2 best has come down from 3.57 in January 2018 to 2.10, a 41% improvement. Koen has entered 52 competitions, more competitions than 99% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Netherlands | |
|---|---|---|---|---|---|
| 3×3 | 8.24 | 9.75 | top 3.2% | 95 / 2,294 | |
| Pyraminx | 2.89 | 4.69 | top 3.3% | 58 / 1,283 | |
| 2×2 | 2.10 | 3.62 | top 5.4% | 118 / 1,665 | |
| 4×4 | 36.49 | 41.30 | top 8.1% | 68 / 1,000 | |
| Clock | 6.91 | 8.73 | top 10.6% | 43 / 466 | |
| 5×5 | 1:08.60 | 1:17.33 | top 10.6% | 45 / 532 | |
| 3×3 one-handed | 16.63 | 19.65 | top 11.7% | 66 / 726 | |
| Megaminx | 1:11.85 | 1:23.66 | top 16.8% | 73 / 414 | |
| Skewb | 5.25 | 7.71 | top 20.1% | 211 / 957 | |
| 3×3 Fewest Moves | 32 moves | 38.67 | top 20.4% | 41 / 167 | |
| 6×6 | 2:25.18 | 2:36.54 | top 23.2% | 43 / 205 | |
| 7×7 | 3:45.60 | 3:53.73 | top 25.5% | 33 / 169 | |
| Square-1 | 22.33 | 30.06 | top 33.2% | 119 / 407 | |
| 3×3 blindfolded | 2:58.43 | 4:29.02 | top 52.0% | 60 / 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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 26 Oct 2024Three personal bests in one day at Dutch Open 2024.
- 5 Jan 2024Four personal bests in one day at Leersum Algs 2024.
- 26 Aug 2023Four personal bests in one day at On Alphen Track to Records 24h 2023.
- 22 Oct 2022Four personal bests in one day at Westfries Open 2022.
- 24 Sep 2022First sub-10 3×3: 9.79 at Ganshoren Saturday Open 2022.
- 24 Sep 2022Three personal bests in one day at Ganshoren Saturday Open 2022.
Competitions
- Rubik's WCA European Championship 2026 · 16 Jul 2026
- Warm Up Lent 2026 · 10 Jul 2026 — 1 personal best set
- Rotterdam Big 'n Brain 2026 · 13 Jun 2026
- Meppel Mayhem 2026 · 30 May 2026
- Breda Open 2026 · 18 Apr 2026
- Maxi Mental Delft 2026 · 28 Mar 2026 — 1 personal best set
- Leersum Open 2026 · 10 Jan 2026
- Cubing in Oud IJsselmuiden 2025 · 20 Dec 2025 — 2 personal bests set
- Pakje Open in Lent 2025 · 6 Dec 2025
- Take Your Time Ermelo 2025 · 18 Oct 2025 — 1 personal best set
- Rubik's Dutch Nationals 2025 · 5 Sep 2025 — 1 personal best set
- Breda Open 2025 · 23 Aug 2025
- Arnhem Open 2025 · 28 Jun 2025 — 1 personal best set
- Quick 'n Slick Meppel 2025 · 17 May 2025 — 1 personal best set
- Lente in Lent 2025 · 12 Apr 2025
- Start in Veenendaal 2025 · 22 Mar 2025 — 1 personal best set
- Mental Breakdown Hoorn 2025 · 8 Mar 2025
- Leersum Squared 2025 · 8 Feb 2025 — 1 personal best set
- Dutch Nationals 2024 · 15 Nov 2024 — 2 personal bests set
- Dutch Open 2024 · 26 Oct 2024 — 3 personal bests set
- Leersum Algs 24 Hours in 2024 · 31 Aug 2024 — 2 personal bests set
- Bigger in Breda 2024 · 4 May 2024
- Arnhem Open A 2024 · 23 Mar 2024 — 2 personal bests set
- Mental Breakdown Hoorn 2024 · 2 Mar 2024
- Dutch Winter South 2024 · 13 Jan 2024 — 2 personal bests set
- Leersum Algs 2024 · 5 Jan 2024 — 4 personal bests set
- Take Your Time Ermelo 2023 · 16 Dec 2023 — 1 personal best set
- Dutch Nationals 2023 · 25 Nov 2023 — 2 personal bests set
- Dutch Autumn 2023 · 23 Sep 2023
- On Alphen Track to Records 24h 2023 · 26 Aug 2023 — 4 personal bests set
- Dutch Open 2023 · 3 Jun 2023
- Ermelo Cubing A 2023 · 22 Apr 2023 — 1 personal best set
- Kampen Open 2023 · 11 Mar 2023 — 1 personal best set
- Dutch Nationals 2022 · 26 Nov 2022 — 1 personal best set
- Westfries Open 2022 · 22 Oct 2022 — 4 personal bests set
- Ganshoren Saturday Open 2022 · 24 Sep 2022 — 3 personal bests set
- Hoorn Open 2022 · 2 Jul 2022 — 1 personal best set
- Dutch Masters 2022 · 21 May 2022 — 4 personal bests set
- Dutch Spring 2022 · 17 Apr 2022 — 4 personal bests set
- Veenendaal Open 2020 · 19 Sep 2020 — 1 personal best set
- Star Cubing Nijmegen 2020 · 29 Feb 2020 — 4 personal bests set
- Dutch Masters 2020 · 1 Feb 2020 — 3 personal bests set
- Dutch Open 2019 · 12 Oct 2019 — 2 personal bests set
- Dutch Nationals 2019 · 21 Sep 2019 — 3 personal bests set
- Hoogland Open 2019 · 16 Aug 2019 — 3 personal bests set
- Star Cubing Nijmegen 2019 · 29 Jun 2019 — 3 personal bests set
- Dutch Masters 2019 · 6 Apr 2019 — 3 personal bests set
- Happy New Year Cubing Nijmegen 2019 · 5 Jan 2019 — 6 personal bests set
- Dutch Nationals 2018 · 22 Sep 2018 — 4 personal bests set
- Veenendaal Open 2018 · 23 Jun 2018 — 4 personal bests set
- Happy New Year Cubing Dordrecht 2018 · 5 Jan 2018 — 3 personal bests set
- Dutch Nationals 2017 · 23 Sep 2017
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.
- Mattheo de Wit — met in 357 rounds, finished ahead 6 times
- Ivo Stoutjesdijk — met in 332 rounds, finished ahead 9 times
- Olivier Vos — met in 325 rounds, finished ahead 28 times
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 0.24 away.
- A sub-2 Pyraminx single — 1,476 people have one; it is 0.89 away.
Targets move as he improves.