In the past year (2019), Katsunori Ishiguro (石黒克典) competed in 7 competitions and 25 rounds across 7 events, from Apr 28th to Nov 4th.
Solves/Attempts
He attempted 121 solves and completed 119.
| Event | Solves | Attempts |
| 3x3x3 Cube | 44 | 45 |
| 2x2x2 Cube | 20 | 20 |
| 4x4x4 Cube | 20 | 20 |
| 5x5x5 Cube | 20 | 20 |
| 3x3x3 One-Handed | 10 | 10 |
| 7x7x7 Cube | 3 | 3 |
| 3x3x3 Fewest Moves | 2 | 3 |
Personal Bests
He broke his personal best 5 times across 4 events, including 4 singles and 1 average.
| Event | Times | Single | Average |
| 3x3x3 One-Handed | 2 | 1 | 1 |
| 3x3x3 Cube | 1 | 1 | 0 |
| 4x4x4 Cube | 1 | 1 | 0 |
| 3x3x3 Fewest Moves | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2018 | 2019 | Improvement |
| 4x4x4 Cube | 43.01 | 39.22 | 3.79 (9.66%) |
| 3x3x3 One-Handed | 27.96 | 26.05 | 1.91 (7.33%) |
| 3x3x3 Cube | 8.73 | 8.65 | 0.08 (0.92%) |
| 3x3x3 Fewest Moves | - | 45 | - |
Improvements of Average
| Event | ≤2018 | 2019 | Improvement |
| 3x3x3 One-Handed | 36.21 | 29.44 | 6.77 (23.00%) |
Cubers
He met 1292 cubers from 47 countries/regions, 221 of whom competed with him more than once. Arifumi Fushimi (伏見有史) was the only one who accompanied the whole 7 competitions.
| Shared Competitions | Competitors |
| 1 | 1071 |
| 2 | 116 |
| 3 | 50 |
| 4 | 27 |
| 5 | 15 |
| 6 | 12 |
| 7 | 1 |
| All | 1292 |
Regions
He competed in 2 countries/regions.
| Region | Times |
| Japan | 6 |
| Australia | 1 |
