Tim Greathouse

Timothy Greathouse began martial art training in 1989 while attending Purdue University. He earned his black belt in Taekwondo in 1993. After receiving a Commission as an Ensign in the United States Navy and earning his Bachelor’s Degree in Liberal Arts and Sciences from the University of Illinois, and he participated in and successfully completed his Instructor Certification program in November 1994.

He founded his first Taekwondo studio in Eugene, OR in 1996 and after 3 successful years moved locations and founded the Core Star Center and MooDo Taekwondo in Eugene, OR in 1999. Since then, the Core Star Center has grown in its offerings and now includes other martial arts, yoga, music and dance programs.

Mr. Greathouse and his Dojang, MooDo Taekwondo, have participated in the US Open Taekwondo Hanmadang since 2012 and have also competed in the World Taekwondo Hanmadang in 2016 and 2017. A highlight from the World Hanmadang in 2017 for Mr. Greathouse was earning a Bronze medal in Individual Creative Board Breaking against 12 other competitors from around the world and also earning a Bronze medal in the Back Kick Power Breaking against 24 other competitors.

He teaches both Adult and Children’s Taekwondo classes as well as Hatha Yoga and an Adaptive Movement and Yoga class for those with special needs. Mr. Greathouse currently holds a 7th Degree Black Belt in Taekwondo as well as a 1st Degree Black Belt in Hapkido.


Sloane Cameron

Sloane Cameron began her Taekwondo training in 1996, at the age of nine. She received her black belt in 1999, and currently holds the rank of 4th degree black belt. After completing her Bachelor’s Degree at the University of Oregon, she completed the Moo Do Instructor program. Master Cameron currently teaches at her new school, the Northwest Ninja Park. She currently holds the world record for women’s concrete and board foot power breaking.