United States Goodwill Tang Soo Do Association (USGTSDA)

07/28/2026

Fall will be here soon! Don't wait to register! Contact KJN Steve Voelker with any questions!

07/16/2026

Awesome chance to train and connect !

Get tickets online for 2026 USGTSDA Training Camp here.

06/10/2026

Quest Martial Arts Instructors Take Top Honors at New England Tang Soo Do Championships

THOMPSON, Conn. — June 10, 2026 — Quest Martial Arts is proud to announce that two of its senior instructors earned top honors at this year’s New England Tang Soo Do Championships, held in Westbrook, Connecticut and hosted by KJN Steve Voelker.

Ms. Erica Seraphin was named All-Around Cup Winner, earning the most combined points across sparring, weapons, and forms among all black belt divisions — a distinction recognizing the most complete competitor at the event.

Master Greg Martinez-Torres was named Grand Champion in all three divisions: Forms, Weapons, and Sparring, sweeping the top placement in each category.

“I am incredibly proud of these results. Erica and Greg are gifted coaches, but they inspire most by leading from the front — still training, still competing, and never asking of their students anything they aren’t willing to do themselves,” said Master Kristin Duethorn, owner of Quest Martial Arts.

03/22/2026

Congratulations to the newly promoted black belts at Quest Martial Arts!
February 2026

Emma Fournier to 2nd Dan
Grant Donaldson to 1st Dan
Aiden Kilmer to 1st Dan
Miloh Brooks to 1st Dan

11/10/2025

Quest Martial Arts was honored to represent the USGTSDA at the 3rd Korean Championships this past weekend. Good competition and even better people.

08/15/2025

Congratulations to Quest martial arts student Lana Powell. We are proud of her accomplishments competing this past weekend in Inverness Scotland. Thank you to all the Tang Soo Do family members who watched out for her since I was unable to attend. All my gratitude and appreciation
Master Kristin Duethorn

Congrats, Lana! She represented Team USA and Quest this past weekend in Inverness, Scotland. Here's a comment from her mom from the weekend-long competition.

"And that’s a wrap! Lana did amazing! Gold in weapons and forms and a silver in sparring! And she competed in grands! Whewww what a trip! Thank you to everyone who has trained her and given her so much support! We are both so very grateful! This kid is all smiles!" - Kim Powell

06/11/2025

It’s Demo team season at Quest!

04/29/2025

Two great events we were honored to attend. Very proud of my team.

03/16/2025

Mike Shintaku—a dominant force in the Pacific Northwest karate scene—was featured on the cover of Karate Illustrated's December 1983 issue.

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