| Certified under The International Krav Maga Federation. Duncan started his training as an assistant instructor under Darren Levine from Krav Maga Worldwide in the early 90's and then was fully certified by Eyal Yanilov from The International Krav Maga Federation in Jan 2000. |
| Krav Maga Organization: |
IKMF (International Krav Maga Federation) |