People · Czech Republic
Jakub Chaloupka
3×3 · top 10.1% of 284,439 all-time · competing since February 2016 · 2016CHAL01
Jakub Chaloupka has been competing for 11 years. His best event is the 3×3: a personal-best single of 10.89, set at Czech Open 2026, puts him in the top 10.1% of the 284,439 people who have ever been ranked in the event, and 154th in the Czech Republic. Across 7 competitions since February 2016, he has put 295 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 83% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 20.59 in February 2016 to 10.89, a 47% improvement. Jakub has entered seven competitions, more competitions than 88% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Czech Republic | |
|---|---|---|---|---|---|
| 3×3 | 10.89 | 14.25 | top 10.1% | 154 / 787 | |
| 2×2 | 2.63 | 4.01 | top 10.2% | 121 / 644 | |
| Skewb | 4.38 | 7.69 | top 13.6% | 74 / 320 | |
| 4×4 | 46.05 | 54.51 | top 19.6% | 106 / 440 | |
| Pyraminx | 6.90 | 8.12 | top 27.1% | 206 / 460 | |
| Square-1 | 25.28 | 32.85 | top 39.7% | 73 / 168 | |
| 5×5 | 1:46.42 | 2:00.97 | top 40.2% | 110 / 248 | |
| 3×3 one-handed | 28.57 | 37.71 | top 43.3% | 133 / 308 | |
| Megaminx | 2:44.34 | — | early days — 3 solves | 131 / 176 | |
| 6×6 | 4:27.41 | — | early days — 3 solves | 97 / 122 | |
| 7×7 | 6:28.28 | — | top 74.0% | 80 / 99 | |
| 3×3 blindfolded | 5:18.25 | — | early days — 1 solve | 61 / 73 | |
| 3×3 Fewest Moves | 59 moves | 61.67 | early days — 3 solves | 76 / 79 |
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
- 25 Jul 2026Three personal bests in one day at Czech Open 2026.
- 24 Nov 2018Seven personal bests in one day at Weston-super-Mare Open 2018.
- 4 Feb 2017Four personal bests in one day at B.O.N.D. Open 2017.
- 1 Oct 2016Five personal bests in one day at Prague Open 2016.
- 19 Jul 2016First sub-15 3×3: 14.54 at Czech Open 2016.
- 19 Jul 2016Five personal bests in one day at Czech Open 2016.
Competitions
- Czech Open 2026 · 25 Jul 2026 — 3 personal bests set
- Weston-super-Mare Open 2018 · 24 Nov 2018 — 7 personal bests set
- B.O.N.D. Open 2017 · 4 Feb 2017 — 4 personal bests set
- Prague Open 2016 · 1 Oct 2016 — 5 personal bests set
- Czech Open 2016 · 19 Jul 2016 — 5 personal bests set
- European Rubik's Cube Championship 2016 · 15 Jul 2016 — 5 personal bests set
- B.O.N.D. Open 2016 · 6 Feb 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.
- Matěj Grohmann — met in 61 rounds, finished ahead 8 times
- Bence Barát — met in 57 rounds, never finished ahead
- Tomáš Nguyen — met in 51 rounds, finished ahead twice
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 0.89 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.63 away.
Targets move as he improves.