During a decorated fight career spanning 85 professional bouts with 62 wins, Damien became British champion, clinched multiple European titles, and went on to secure two World titles — achievements that solidified his legacy as one of the UK’s most accomplished Muay Thai practitioners.
His quest for mastery took him beyond the UK to Thailand, the birthplace of Muay Thai, where he sharpened his skills and fought across Asia, earning the Hong Kong Championship among his accolades.
From Champion Fighter to World-Class Coach
After retiring from competition, Damien founded K-Star Legacy Gym in Birmingham, a training hub now recognised throughout the fight world for producing technically savvy, tough and well-rounded athletes.
As head coach and chief instructor, he has worked with fighters competing in top global promotions — including the UFC, Bellator, Glory Kickboxing, BAMMA and K-1 — sharing his wealth of technical knowledge and competitive insight.
Renowned for blending traditional Muay Thai fundamentals with modern striking concepts, Trainor’s coaching embraces everything from clinch dominance and range control to effective power development and tactical fight game strategy.
Instructional Volumes on Warrior Collective
Damien’s instructional content on Warrior Collective gives practitioners and coaches around the world access to his structured and highly effective training systems — from foundational mechanics to advanced fight-ready drills.
📘 Damien Trainor Full Instructional Series:
Muay Thai Training – Developing World Class Striking — Complete fundamentals from basics to advanced striking, including punch mechanics, knee framework, defend & counter and sparring drills.
Solo Training – Bag Work for World Class Striking — A deep dive into bag work, drills for building power, angles, close-range striking and advanced combinations.
Muay Thai Bag Work – Developing World Class Striking — Systemised bag drills covering isolation work, building sequences, elbow and kick integration and fight strategies.
Fighting Concepts for World Class Striking — Tactical striking concepts including low kick and body kick countering, footwork movement, feints, Dutch-style drills and pad work systems.
Muay Thai Sparring – Developing World Class Striking — Advanced sparring frameworks, ring craft, range control, Dutch kickboxing flow and distance warfare strategies.
Fighting Concepts for World Class Striking - A deep dive into Damien’s tactical thinking — including feints, rhythm disruption, low-kick and body-kick counters, Dutch-style combinations, footwork concepts and intelligent pad work systems.
The Fight Game – Strategies for World Class Striking — A highly detailed strategic volume featuring elbow counters, fake kick setups, breaking the centre line, southpaw vs orthodox situations and bonus seminar content.
Muay Thai Clinch – Developing World Class Fighters — A comprehensive clinch system with fundamentals, off-balancing, sweeps, defending knees, clinch entries and powerful knee/elbow options.
