A big shout-out to the following IMA referees who worked the 2013 National Championship and US Team Trials in Greenville, South Carolina:
- Sensei Luis Ruiz – IMA Goshin-Ryu Shotokan Karate-Do School; Brooklyn, New York
- Senpai Noorul Ameen – IMA Goshin-Ryu Shotokan Karate-Do School; Brooklyn, New York
- Sensei Shanta Thokar – IMA New York; Elmhurst, New York
- Senpai Parkhi Rai – IMA New York; Elmhurst, New York
- Sensei Amadou Niang – IMA International Budokan Shotokan Karate; Salt Lake City, Utah
- Senpai Jennifer McGavin – IMA North Fork Karate; Paonia, Colorado
- Senpai Doris Danielsen – IMA North Fork Karate; Paonia, Colorado
- Shihan Patrick Richoux – IMA Karate Houston; Houston, Texas
- Hanshi Cyrus Madani – IMA Honbu Dojo; Louisville, Colorado
- Sensei Fariba Madani – IMA Honbu Dojo; Louisville, Colorado