 | IUKF # 200148 | |
| Dojo: Mattson Academy of Uechi-ryu Karate | ||
| Sensei: George E. Mattson | ||
| Country: United States of America | ||
| Current Rank Rokudan | Current Title - | Current Master Certifications - |
| Rokudan | IUKF | George E. Mattson | 08/03/2024 | |
| Godan | IUKF | George E. Mattson | 02/03/2019 | |
| Yondan | IUKF | George E. Mattson | 18/10/2015 | |
| Sandan | IUKF | George E. Mattson | 31/07/2010 | |
| Nidan | IUKF | George E. Mattson | 10/01/2004 | |
| Shodan | IUKF | George E. Mattson | 12/08/2000 |