The KO combo, delivered with a knee to the stomach and right uppercut left hook, earnt the local combatant an appearance on a televised event in November.
Weighing in at 78.8kg, Haynes’ victory was fought in conjunction with the Fighting For Autism foundation.
It was his first WA fight after relocating from New South Wales.
Local coaches Simon Martinelli and Chantal Du Preez train the unbeaten fighter at Sunset Muay Thai in Quinns Rocks.
‘Although a small gym, there is a bright future ahead under the guidance of Simon and Chantal,’ Haynes said.