5 Dan
catupper 
| Country/Region |  Japan |
|---|---|
| Birth Year | 1996 |
| X(Twitter) ID | @catupper |
| TopCoder ID | catlower |
| Codeforces ID | catupper |
| Affiliation | 競プロYouTuber |
Contest Status
| Rank | 193rd |
|---|---|
| Rating |  2579
|
| Highest Rating | 2885 ― 5 Dan (+115 to promote) |
| Rated Matches | 131 |
| Last Competed | 2025/11/16 |