Ryuma Koga (古賀瑠磨)
Name:
Ryuma Koga (古賀瑠磨)
Region:
Japan
Competitions:
2
WCA ID:
2025KOGA03
2025KOGA03
Gender:
Male
Career:
2025.12.28 - 2026.08.09
Current Personal Records
| Event | NR | CR | WR | Single | Average | WR | CR | NR | Gold | Silver | Bronze | Solves/Attempts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3x3x3 Cube | 503 | 12748 | 33602 | 11.43 | 14.58 | 39748 | 15482 | 603 | 10/10 |
Sum of Ranks
| Competition | Round | Place | Best | Average | Detail |
|---|---|---|---|---|---|
| Shimonoseki Summer 2026 | First round | 30 | 11.43 | 14.58 | 15.92 17.11 11.43 14.38 13.43 |
| Shimonoseki 2025 | First round | 44 | 14.59 | 16.22 | 14.59 14.92 15.10 18.63 19.02 |
| Shimonoseki Summer 2026 | |||||
| Event | Round | Place | Best | Average | Detail |
|---|---|---|---|---|---|
| 3x3x3 Cube | First round | 30 | 11.43 | 14.58 | 15.92 17.11 11.43 14.38 13.43 |
| Shimonoseki 2025 | |||||
| Event | Round | Place | Best | Average | Detail |
| 3x3x3 Cube | First round | 44 | 14.59 | 16.22 | 14.59 14.92 15.10 18.63 19.02 |
| No. | Date | Name | Region | City |
|---|---|---|---|---|
| 2 | 2026-08-09 | Shimonoseki Summer 2026 | Japan | Shimonoseki, Yamaguchi |
| 1 | 2025-12-28 | Shimonoseki 2025 | Japan | Shimonoseki, Yamaguchi |
Closest Cubers
Seen Cubers
| Times | Competitors |
|---|---|
| 1 | 114 |
| 2 | 32 |
| All | 146 |