In the past year (2025), Koen van Aller competed in 11 competitions and 94 rounds across 15 events, from Feb 8th to Dec 20th.
Solves/Attempts
He attempted 421 solves and completed 404.
| Event | Solves | Attempts |
| 3x3x3 Cube | 55 | 55 |
| 5x5x5 Cube | 50 | 50 |
| Pyraminx | 49 | 50 |
| 3x3x3 One-Handed | 45 | 45 |
| 4x4x4 Cube | 44 | 45 |
| Skewb | 40 | 40 |
| Megaminx | 30 | 30 |
| 2x2x2 Cube | 25 | 25 |
| Square-1 | 22 | 22 |
| 6x6x6 Cube | 18 | 18 |
| Clock | 14 | 15 |
| 3x3x3 Fewest Moves | 6 | 6 |
| 7x7x7 Cube | 3 | 3 |
| 3x3x3 Blindfolded | 3 | 15 |
| 3x3x3 Multi-Blind | 0 | 2 |
Personal Bests
He broke his personal best 18 times across 7 events, including 8 singles and 10 averages.
| Event | Times | Single | Average |
| Square-1 | 5 | 2 | 3 |
| 5x5x5 Cube | 4 | 2 | 2 |
| 3x3x3 One-Handed | 4 | 2 | 2 |
| 3x3x3 Cube | 2 | 1 | 1 |
| 6x6x6 Cube | 1 | 0 | 1 |
| 3x3x3 Blindfolded | 1 | 1 | 0 |
| Megaminx | 1 | 0 | 1 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Blindfolded | 3:24.87 | 2:58.43 | 26.44 (14.82%) |
| Square-1 | 24.26 | 22.33 | 1.93 (8.64%) |
| 5x5x5 Cube | 1:14.37 | 1:08.60 | 5.77 (8.41%) |
| 3x3x3 One-Handed | 17.38 | 16.63 | 0.75 (4.51%) |
| 3x3x3 Cube | 8.40 | 8.24 | 0.16 (1.94%) |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| Square-1 | 35.35 | 30.06 | 5.29 (17.60%) |
| 5x5x5 Cube | 1:25.59 | 1:17.33 | 8.26 (10.68%) |
| 3x3x3 One-Handed | 20.72 | 19.65 | 1.07 (5.45%) |
| 3x3x3 Cube | 9.91 | 9.75 | 0.16 (1.64%) |
| Megaminx | 1:24.36 | 1:23.66 | 0.70 (0.84%) |
| 6x6x6 Cube | 2:37.21 | 2:36.54 | 0.67 (0.43%) |
Cubers
He met 773 cubers from 36 countries/regions, 391 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 382 |
| 2 | 136 |
| 3 | 82 |
| 4 | 40 |
| 5 | 41 |
| 6 | 31 |
| 7 | 22 |
| 8 | 12 |
| 9 | 12 |
| 10 | 11 |
| 11 | 4 |
| All | 773 |
Regions
He competed in 1 country/region.
| Region | Times |
| Netherlands | 11 |
