People · Netherlands
David Kowalczyk
Clock · top 5.5% of 32,817 all-time · competing since April 2023 · 2023KOWA03
David Kowalczyk has been competing for 4 years. His best event is the Clock: a personal-best single of 5.43, set at Meppel Mayhem 2026, puts him in the top 5.5% of the 32,817 people who have ever been ranked in the event, and 20th in the Netherlands. Until December 2011, no official Clock solve in the world had been that fast. Across 10 competitions since April 2023, he has put 255 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 9% around a typical one, an early reading from 9 counted rounds. His 2×2 best has come down from 5.59 in April 2023 to 3.72, a 33% improvement. David has entered ten competitions, more competitions than 92% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Netherlands | |
|---|---|---|---|---|---|
| Clock | 5.43 | 6.33 | top 5.5% | 20 / 479 | |
| Pyraminx | 5.73 | 8.97 | top 18.1% | 317 / 1,296 | |
| Square-1 | 17.51 | 20.20 | top 22.2% | 74 / 407 | |
| 2×2 | 3.72 | 5.18 | top 23.0% | 536 / 1,680 | |
| 4×4 | 48.73 | 51.90 | top 23.2% | 221 / 1,009 | |
| 3×3 | 15.01 | 17.35 | top 24.6% | 708 / 2,318 | |
| Skewb | 6.23 | 8.60 | top 27.7% | 303 / 968 | |
| 3×3 one-handed | 23.34 | 36.91 | top 29.8% | 200 / 737 | |
| Megaminx | 1:42.04 | 1:55.57 | top 35.9% | 153 / 417 | |
| 5×5 | 1:55.42 | 1:59.76 | top 46.4% | 243 / 542 |
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
- 30 May 2026Five personal bests in one day at Meppel Mayhem 2026.
- 26 Oct 2024Four personal bests in one day at Dutch Open 2024.
- 21 Sep 2024Five personal bests in one day at Visé Open Saturday 2024.
- 5 Jan 2024First sub-20 3×3: 15.01 at Leersum Algs 2024.
- 16 Dec 2023Four personal bests in one day at Take Your Time Ermelo 2023.
- 22 Apr 2023First competition: Ermelo Cubing A 2023. A 27.44 3×3 single to start from.
Competitions
- Meppel Mayhem 2026 · 30 May 2026 — 5 personal bests set
- Dutch Nationals 2024 · 15 Nov 2024 — 1 personal best set
- Dutch Open 2024 · 26 Oct 2024 — 4 personal bests set
- Visé Open Saturday 2024 · 21 Sep 2024 — 5 personal bests set
- Rubik's WCA European Championship 2024 · 25 Jul 2024 — 1 personal best set
- Arnhem Open A 2024 · 23 Mar 2024 — 2 personal bests set
- Leersum Algs 2024 · 5 Jan 2024 — 2 personal bests set
- Take Your Time Ermelo 2023 · 16 Dec 2023 — 4 personal bests set
- Dutch Nationals 2023 · 25 Nov 2023 — 1 personal best set
- Ermelo Cubing A 2023 · 22 Apr 2023
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.
- Hugo Goudriaan — met in 49 rounds, finished ahead 5 times
- Pablito Poye — met in 48 rounds, finished ahead 4 times
- Christofor Gabriel Costea — met in 47 rounds, finished ahead twice
Next targets
- A sub-5 Clock single — 1,444 people have one; it is 0.43 away.
- A sub-5 Pyraminx single — 17,242 people have one; it is 0.73 away.
Targets move as he improves.