| | IUKF # 200636 | |
| Dojo: Mattson Academy of Uechi-ryu Karate | ||
| Sensei: George E. Mattson | ||
| Country: United States of America | ||
| Current Rank Sandan | Current Title - | Current Master Certifications - |
| Sandan | IUKF | George E. Mattson | 09/03/2024 | |
| Nidan | IUKF | George E. Mattson | 18/10/2015 | |
| Shodan | IUKF | George E. Mattson | 26/02/2006 | |
| Shidoin | IUKF | George E. Mattson | 09/03/2024 |